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MigrationAzureKubernetes Migration

AKS Migration & Kubernetes Infrastructure – E-Commerce

A migration of a monolithic e-commerce platform from on-premises infrastructure to a governed, autoscaling AKS environment with GitOps delivery.

51-step migration flow for AKS Migration & Kubernetes Infrastructure – E-Commerce

View plan contents

Follow the phases in order. Each step explains why the work is required, how it applies to this project, who owns it, what to do, which tools fit, what evidence to retain, and the gate that must pass before continuing.

Project operating context

Retail and digital commerce
Service promise

Improve deployment speed, scalability, governance, and operational efficiency by containerizing legacy services and standardizing Kubernetes deployment and scaling.

Critical service journey
  1. 01discover a product and current offer
  2. 02confirm price, inventory, and delivery promise
  3. 03create and authorize the order
  4. 04reserve stock and start fulfilment
  5. 05track delivery, return, or refund status
  6. 06reconcile payment, inventory, and customer outcome
People and teams
  • shoppers and customer-care agents
  • merchandising and inventory teams
  • warehouse and fulfilment operators
  • payments, platform, and reliability teams
Protected assets
  • catalogue, price, promotion, and inventory state
  • customer baskets, orders, payments, and refunds
  • fulfilment and shipment events
  • customer identity and personal information
Critical dependencies
  • product, inventory, and pricing services
  • payment, fraud, tax, and address partners
  • warehouse, carrier, notification, and customer-care systems
  • traffic management, cache, database, and messaging layers
Primary risks
  • overselling or incorrect pricing during a demand spike
  • a customer is charged without a durable order or refund state
  • stale cache or delayed events create inconsistent channel behavior
  • release or capacity failure interrupts checkout at peak traffic
Mandatory controls
  • idempotent order and payment processing
  • inventory, payment, shipment, and refund reconciliation
  • progressive release with business-journey rollback gates
  • peak-load autoscaling and dependency protection
Success signals
  • browse-to-checkout completion rate
  • payment authorization and order durability
  • inventory accuracy and fulfilment timeliness
  • refund completion time and customer-impacting error rate

Full project notes

6 note sections

AKS Migration & Kubernetes Infrastructure – E-Commerce is treated as a complete retail and digital commerce service rather than a collection of isolated cloud resources. These notes explain the business journey, architecture, delivery or operating model, assurance controls, production signals, recovery behavior, and evidence required to manage the project from initiation through handover.

Execution-plan basisA complete migration lifecycle for estate discovery, target design, landing-zone construction, workload and data preparation, rehearsal, controlled cutover, hypercare, decommissioning, and benefits realization. Validate the cutover controls, gates, evidence, and rollback practices against the real migration program.

01

Business scope and service outcome

A migration of a monolithic e-commerce platform from on-premises infrastructure to a governed, autoscaling AKS environment with GitOps delivery. The governing objective is to improve deployment speed, scalability, governance, and operational efficiency by containerizing legacy services and standardizing Kubernetes deployment and scaling. Scope decisions must therefore be tested against the complete journey from “discover a product and current offer” to “reconcile payment, inventory, and customer outcome”, not only against successful infrastructure deployment.

The service serves shoppers and customer-care agents, merchandising and inventory teams, warehouse and fulfilment operators, payments, platform, and reliability teams. Ownership must remain clear at every handoff because a technically healthy component can still leave the business journey incomplete, inconsistent, inaccessible, or outside its required operating window.

  • Business outcome measures: browse-to-checkout completion rate, payment authorization and order durability, inventory accuracy and fulfilment timeliness, refund completion time and customer-impacting error rate.
  • Protected service assets: catalogue, price, promotion, and inventory state, customer baskets, orders, payments, and refunds, fulfilment and shipment events, customer identity and personal information.
  • Accountable participant groups: shoppers and customer-care agents, merchandising and inventory teams, warehouse and fulfilment operators, payments, platform, and reliability teams.
02

Architecture and dependency notes

The Azure solution must carry each request, event, file, job, or operator action across product, inventory, and pricing services, payment, fraud, tax, and address partners, warehouse, carrier, notification, and customer-care systems, traffic management, cache, database, and messaging layers. Those dependencies require explicit identities, routes, timeouts, retry behavior, health signals, owners, escalation paths, capacity assumptions, and safe failure modes.

The working technology set is AKS, Kubernetes, Docker, Helm, ArgoCD, Terraform, Azure Policy, Azure Monitor, Application Insights. Every technology is included for a defined service responsibility and must have version ownership, configuration source, security baseline, monitoring coverage, backup or recreation method, and an upgrade path. Unmanaged manual configuration is treated as drift and converted into reviewed automation or a governed runbook step.

  • Journey stage 1: discover a product and current offer.
  • Journey stage 2: confirm price, inventory, and delivery promise.
  • Journey stage 3: create and authorize the order.
  • Journey stage 4: reserve stock and start fulfilment.
  • Journey stage 5: track delivery, return, or refund status.
  • Journey stage 6: reconcile payment, inventory, and customer outcome.
03

Migration waves, rehearsal, and cutover model

The migration is controlled as a sequence of dependency-aware waves rather than a bulk infrastructure move. Discovery establishes the trusted source baseline; target design answers security, availability, scaling, cost, observability, backup, recovery, and support needs; the landing zone is proven before workload data is introduced.

A representative pilot and timed rehearsal validate transfer duration, compatibility, integrations, performance, security, recovery, business reconciliation, operator readiness, and rollback. During production cutover, explicit checkpoints govern freeze, recovery-point capture, final synchronization, dependency start order, traffic movement, reconciliation, go/no-go, hypercare, and eventual source retirement.

  • Containerized legacy applications with Docker and migrated workloads to AKS.
  • Designed namespaces, ingress controllers, RBAC, and autoscaling policies.
  • Implemented ArgoCD GitOps deployment workflows.
  • Configured Horizontal Pod Autoscaler and Cluster Autoscaler.
  • Applied Azure Policy for governance and compliance.
  • Developed reusable Helm charts for environment-specific deployments.
  • Monitored application and cluster health with Azure Monitor and Application Insights.
  • Optimized cloud cost and deployment frequency.
04

Security, risk, and assurance notes

The primary project risks are overselling or incorrect pricing during a demand spike; a customer is charged without a durable order or refund state; stale cache or delayed events create inconsistent channel behavior; release or capacity failure interrupts checkout at peak traffic. They are converted into preventive, detective, and recovery controls rather than left as narrative concerns in a risk register. Each control has an owner, automated or procedural implementation, test method, evidence location, exception path, and review date.

Mandatory assurance includes idempotent order and payment processing; inventory, payment, shipment, and refund reconciliation; progressive release with business-journey rollback gates; peak-load autoscaling and dependency protection. Identity and secrets follow least privilege; data is protected in transit and at rest; changes remain traceable to reviewed source; security and quality findings are resolved or formally accepted before the corresponding gate can pass.

  • Control: idempotent order and payment processing.
  • Control: inventory, payment, shipment, and refund reconciliation.
  • Control: progressive release with business-journey rollback gates.
  • Control: peak-load autoscaling and dependency protection.
05

Observability and operational notes

Monitoring joins infrastructure health with application behavior, dependency state, security events, logs, traces, scheduled work, and the business journey. Dashboards and alerts are segmented by environment, region, tenant, cohort, and deployed version where those dimensions affect diagnosis or impact.

The key service indicators are browse-to-checkout completion rate, payment authorization and order durability, inventory accuracy and fulfilment timeliness, refund completion time and customer-impacting error rate. Every alert must name the affected service, likely impact, current value, threshold, responder, runbook, escalation path, and recovery condition. Synthetic checks exercise the real service path so that a green host or cluster cannot hide a failed business transaction.

  • Operational signal: browse-to-checkout completion rate.
  • Operational signal: payment authorization and order durability.
  • Operational signal: inventory accuracy and fulfilment timeliness.
  • Operational signal: refund completion time and customer-impacting error rate.
06

Recovery, handover, and continuous improvement

Recovery is designed around the complete service: application version, infrastructure, configuration, secrets and certificates, data, identity, networking, dependencies, observability, and accountable operators. Restore and failover exercises measure both recovery time and data position, then validate the critical journey before business recovery is declared.

Handover includes architecture, repository and release ownership, access, dashboards, alert routes, support schedules, runbooks, backup and recovery evidence, known risks, vendor contacts, cost ownership, and improvement backlog. Incidents, failed changes, capacity trends, security findings, and user feedback become funded corrective work with owners and measurable closure evidence.

  • Target outcome: Improved scalability through pod and cluster autoscaling.
  • Target outcome: Established version-controlled GitOps releases.
  • Target outcome: Standardized deployment configuration through reusable Helm charts.

Full flow diagram library

5 project-level flows

Use these diagrams with the critical-service journey, phase maps, and the execution diagram inside every step. Together they show how business work, platform components, delivery controls, evidence, recovery, and continuous improvement connect.

01

End-to-end business service flow

The customer, operator, data, and system journey that the technical project exists to protect.

  1. 01Stage 1Discover a product and current offer; observe browse-to-checkout completion rate.
  2. 02Stage 2Confirm price, inventory, and delivery promise; observe payment authorization and order durability.
  3. 03Stage 3Create and authorize the order; observe inventory accuracy and fulfilment timeliness.
  4. 04Stage 4Reserve stock and start fulfilment; observe refund completion time and customer-impacting error rate.
  5. 05Stage 5Track delivery, return, or refund status; observe browse-to-checkout completion rate.
  6. 06Stage 6Reconcile payment, inventory, and customer outcome; observe payment authorization and order durability.
02

Architecture and dependency flow

A logical view of how the Azure platform connects users, delivery tooling, service logic, protected data, dependencies, and operations.

  1. 01People and systemsshoppers and customer-care agents and merchandising and inventory teams
  2. 02Identity and entryproduct, inventory, and pricing services
  3. 03Azure platformAKS, Kubernetes, Docker
  4. 04Project capabilityKubernetes Migration: Containerized legacy applications with Docker and migrated workloads to AKS
  5. 05Protected statecatalogue, price, promotion, and inventory state and customer baskets, orders, payments, and refunds
  6. 06Connected servicespayment, fraud, tax, and address partners, warehouse, carrier, notification, and customer-care systems, traffic management, cache, database, and messaging layers
  7. 07Operational feedbackbrowse-to-checkout completion rate and payment authorization and order durability
03

Migration lifecycle control flow

The ordered governance path used to control this migration project from entry criteria to measurable service outcome.

  1. 01DiscoverSource assets, dependencies, data, performance, cost, and recovery needs
  2. 02DesignDisposition, target architecture, security, operations, and economics
  3. 03Build targetGoverned landing zone, connectivity, identity, policy, and monitoring
  4. 04PrepareCompatibility, transfer, waves, cutover, rollback, and ownership
  5. 05PilotRepresentative workload and reusable migration learning
  6. 06RehearseTimed technical, business, security, recovery, and operator validation
  7. 07Cut overFreeze, final sync, dependency start, traffic, reconciliation, and decision
  8. 08StabilizeHypercare, handover, source retirement, optimization, and benefits
04

Risk, control, evidence, and gate flow

Every material risk is connected to a control, implementation, retained evidence, accountable decision, and live success signal.

  1. 01Identify riskoverselling or incorrect pricing during a demand spike
  2. 02Select controlidempotent order and payment processing
  3. 03ImplementAKS, Kubernetes, Docker, Helm
  4. 04Retain evidenceVersion, operator, timestamps, test output, approval, and before-and-after state
  5. 05Pass the gateThe accountable owner accepts measured evidence or stops the flow
  6. 06Monitor outcomebrowse-to-checkout completion rate
  7. 07Feed improvementImproved scalability through pod and cluster autoscaling.
05

Failure detection and service recovery loop

The closed loop used to detect degradation, localize the fault, restore the complete service, and prevent recurrence.

  1. 01Detect deviationbrowse-to-checkout completion rate and payment authorization and order durability
  2. 02Establish impactshoppers and customer-care agents, merchandising and inventory teams, and the affected journey stage
  3. 03Correlate evidenceproduct, inventory, and pricing services, payment, fraud, tax, and address partners, warehouse, carrier, notification, and customer-care systems, traffic management, cache, database, and messaging layers
  4. 04Contain safelyinventory, payment, shipment, and refund reconciliation
  5. 05Restore serviceRecover catalogue, price, promotion, and inventory state and customer baskets, orders, payments, and refunds
  6. 06Validate journeydiscover a product and current offer through reconcile payment, inventory, and customer outcome
  7. 07Learn and improveStandardized deployment configuration through reusable Helm charts. Correct the detection and prevention gap.
51ordered steps
8execution phases
51quality gates

Discover the estate

9 steps

Define scope and outcomes, inventory the current estate, map dependencies, classify data, and establish business, performance, recovery, cost, and licensing baselines.

01
Define migration charter and scopeOwner: Executive sponsor, program manager, architect, and workload owner
Purpose

State the business reason, workloads, locations, target outcome, boundaries, assumptions, timeline, budget, success measures, and constraints.

Project application

Define migration charter and scope is where the team must replace migration assumptions with a trusted source baseline. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. The relevant project scope is concrete: Containerized legacy applications with Docker and migrated workloads to AKS. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with payment, fraud, tax, and address partners
  2. 02Define migration charter and scopeInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceApproved migration charter, Scope and success scorecard using Azure Monitor, Application Insights, AKS
  5. 05Exit decisionThe migration has a funded owner, measurable outcome, agreed boundary, and decision authority. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Monitor, Application Insights, AKS, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Containerized legacy applications with Docker and migrated workloads to AKS. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Approved migration charter, Scope and success scorecard, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: improved scalability through pod and cluster autoscaling, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Approved migration charter
  • Scope and success scorecard
Applicable tools
Azure MonitorApplication InsightsAKSAzure
Exit gate

The migration has a funded owner, measurable outcome, agreed boundary, and decision authority.

02
Identify stakeholders and decision ownersOwner: Program manager and business owner
Purpose

Map application, data, infrastructure, network, identity, security, compliance, vendor, finance, support, and business decision makers.

Project application

At this point, identify stakeholders and decision owners must replace migration assumptions with a trusted source baseline. The implementation follows “confirm price, inventory, and delivery promise” across traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. Existing project evidence establishes the delivery context: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with warehouse, carrier, notification, and customer-care systems
  2. 02Identify stakeholders and decision ownersInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceStakeholder RACI, Governance and escalation calendar using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionEvery architecture, cutover, risk, business-validation, and rollback decision has a named accountable owner. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Stakeholder RACI, Governance and escalation calendar, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: established version-controlled GitOps releases, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Stakeholder RACI
  • Governance and escalation calendar
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

Every architecture, cutover, risk, business-validation, and rollback decision has a named accountable owner.

03
Inventory source assetsOwner: Discovery team and source-platform owners
Purpose

Record servers, VMs, clusters, databases, storage, applications, services, jobs, middleware, network devices, licenses, versions, and ownership.

Project application

The practical purpose of inventory source assets is to replace migration assumptions with a trusted source baseline. The team traces the change through “create and authorize the order”, including its reliance on product, inventory, and pricing services and its effect on customer identity and personal information. The implementation anchor comes from the project’s recorded scope: Implemented ArgoCD GitOps deployment workflows. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with traffic management, cache, database, and messaging layers
  2. 02Inventory source assetsInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceValidated source inventory, Asset completeness report using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionInventory findings reconcile with source management systems and unexplained assets have an investigation owner. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Implemented ArgoCD GitOps deployment workflows. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Validated source inventory, Asset completeness report, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Validated source inventory
  • Asset completeness report
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

Inventory findings reconcile with source management systems and unexplained assets have an investigation owner.

04
Discover application dependenciesOwner: Application architect, network, and observability teams
Purpose

Map synchronous calls, queues, files, databases, identity, DNS, certificates, batch schedules, ports, protocols, vendors, users, and operational tools.

Project application

This step turns discover application dependencies into a controlled decision: replace migration assumptions with a trusted source baseline. In the retail and digital commerce context, the work follows the journey from “reserve stock and start fulfilment” through payment, fraud, tax, and address partners. The protected business boundary is catalogue, price, promotion, and inventory state. The relevant project scope is concrete: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputReserve stock and start fulfilment with product, inventory, and pricing services
  2. 02Discover application dependenciesInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceDependency map, Critical transaction flow using Azure Policy, Azure Monitor, Application Insights
  5. 05Exit decisionEach in-scope workload has a complete inbound, outbound, timing, ownership, and failure-behavior view. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “track delivery, return, or refund status”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Policy, Azure Monitor, Application Insights, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Dependency map, Critical transaction flow, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: improved scalability through pod and cluster autoscaling, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Dependency map
  • Critical transaction flow
Applicable tools
Azure PolicyAzure MonitorApplication InsightsAzure
Exit gate

Each in-scope workload has a complete inbound, outbound, timing, ownership, and failure-behavior view.

05
Classify data and compliance obligationsOwner: Data owner, security, privacy, and compliance
Purpose

Identify sensitive classes, residency, sovereignty, encryption, retention, legal hold, audit, transfer, deletion, and access requirements.

Project application

Classify data and compliance obligations is where the team must replace migration assumptions with a trusted source baseline. The implementation follows “track delivery, return, or refund status” across warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. Existing project evidence establishes the delivery context: Applied Azure Policy for governance and compliance. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputTrack delivery, return, or refund status with payment, fraud, tax, and address partners
  2. 02Classify data and compliance obligationsInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceData classification register, Compliance control mapping using ArgoCD, Terraform, Azure Policy
  5. 05Exit decisionThe target and transfer design can satisfy every applicable control or has a formally accepted exception. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “reconcile payment, inventory, and customer outcome”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use ArgoCD, Terraform, Azure Policy, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Applied Azure Policy for governance and compliance. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Data classification register, Compliance control mapping, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: established version-controlled GitOps releases, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Data classification register
  • Compliance control mapping
Applicable tools
ArgoCDTerraformAzure PolicyAzure
Exit gate

The target and transfer design can satisfy every applicable control or has a formally accepted exception.

06
Rank business criticalityOwner: Business continuity and workload owners
Purpose

Classify user impact, revenue, safety, regulatory, operational, seasonal, dependency, and outage consequences to prioritize migration waves.

Project application

At this point, rank business criticality must replace migration assumptions with a trusted source baseline. The team traces the change through “reconcile payment, inventory, and customer outcome”, including its reliance on traffic management, cache, database, and messaging layers and its effect on fulfilment and shipment events. The implementation anchor comes from the project’s recorded scope: Developed reusable Helm charts for environment-specific deployments. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputReconcile payment, inventory, and customer outcome with warehouse, carrier, notification, and customer-care systems
  2. 02Rank business criticalityInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceCriticality tier matrix, Business blackout calendar using Azure Monitor, Application Insights, AKS
  5. 05Exit decisionWave order and downtime strategy reflect business impact and protected operating periods. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “discover a product and current offer”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Monitor, Application Insights, AKS, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Developed reusable Helm charts for environment-specific deployments. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Criticality tier matrix, Business blackout calendar, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Criticality tier matrix
  • Business blackout calendar
Applicable tools
Azure MonitorApplication InsightsAKSAzure
Exit gate

Wave order and downtime strategy reflect business impact and protected operating periods.

07
Capture performance and capacity baselineOwner: Performance engineering and platform operations
Purpose

Measure CPU, memory, storage, IOPS, throughput, latency, concurrency, growth, batch windows, peaks, and dependency response under representative load.

Project application

The practical purpose of capture performance and capacity baseline is to replace migration assumptions with a trusted source baseline. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through product, inventory, and pricing services. The protected business boundary is customer identity and personal information. The relevant project scope is concrete: Monitored application and cluster health with Azure Monitor and Application Insights. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with traffic management, cache, database, and messaging layers
  2. 02Capture performance and capacity baselineInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceSource performance baseline, Capacity and growth profile using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionTarget sizing and validation thresholds use measured percentiles and peaks instead of static allocations alone. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Monitored application and cluster health with Azure Monitor and Application Insights. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Source performance baseline, Capacity and growth profile, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: improved scalability through pod and cluster autoscaling, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Source performance baseline
  • Capacity and growth profile
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

Target sizing and validation thresholds use measured percentiles and peaks instead of static allocations alone.

08
Capture cost and license baselineOwner: FinOps, procurement, and asset management
Purpose

Calculate infrastructure, support, facilities, software, network, backup, labor, commitment, and license costs plus contract and portability constraints.

Project application

This step turns capture cost and license baseline into a controlled decision: replace migration assumptions with a trusted source baseline. The implementation follows “confirm price, inventory, and delivery promise” across payment, fraud, tax, and address partners. The protected business boundary is catalogue, price, promotion, and inventory state. Existing project evidence establishes the delivery context: Optimized cloud cost and deployment frequency. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with product, inventory, and pricing services
  2. 02Capture cost and license baselineInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceCurrent total-cost baseline, License and contract constraint register using Azure Policy, Azure Monitor, Application Insights
  5. 05Exit decisionThe target business case includes comparable cost, one-time migration cost, termination risk, and license eligibility. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Policy, Azure Monitor, Application Insights, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Optimized cloud cost and deployment frequency. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Current total-cost baseline, License and contract constraint register, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: established version-controlled GitOps releases, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Current total-cost baseline
  • License and contract constraint register
Applicable tools
Azure PolicyAzure MonitorApplication InsightsAzure
Exit gate

The target business case includes comparable cost, one-time migration cost, termination risk, and license eligibility.

09
Confirm downtime and recovery objectivesOwner: Business owner, continuity, data, and architecture leads
Purpose

Agree cutover outage, RTO, RPO, data-loss tolerance, rollback time, service priority, and business validation window for every tier.

Project application

Confirm downtime and recovery objectives is where the team must replace migration assumptions with a trusted source baseline. The team traces the change through “create and authorize the order”, including its reliance on warehouse, carrier, notification, and customer-care systems and its effect on customer baskets, orders, payments, and refunds. The implementation anchor comes from the project’s recorded scope: Containerized legacy applications with Docker and migrated workloads to AKS. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with payment, fraud, tax, and address partners
  2. 02Confirm downtime and recovery objectivesInventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceDowntime and RTO/RPO matrix, Approved recovery assumptions using ArgoCD, Terraform, Azure Policy
  5. 05Exit decisionThe migration method and rollback window can meet the approved business tolerances. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use ArgoCD, Terraform, Azure Policy, Azure to inventory assets, transactions, dependencies, data obligations, criticality, performance, cost, licenses, downtime, and recovery needs. Project scope for this action: Containerized legacy applications with Docker and migrated workloads to AKS. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Downtime and RTO/RPO matrix, Approved recovery assumptions, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Downtime and RTO/RPO matrix
  • Approved recovery assumptions
Applicable tools
ArgoCDTerraformAzure PolicyAzure
Exit gate

The migration method and rollback window can meet the approved business tolerances.

Design the destination

11 steps

Select the migration disposition and design a secure, available, scalable, observable, recoverable, supportable, and cost-owned target architecture.

10
Select the migration dispositionOwner: Architecture review board and workload owner
Purpose

Choose rehost, replatform, refactor, repurchase, retain, retire, relocate, or a staged combination based on value, risk, compatibility, and timeline.

Project application

At this point, select the migration disposition must choose a target that is operable, secure, recoverable, and economically owned. In the retail and digital commerce context, the work follows the journey from “reserve stock and start fulfilment” through traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. The relevant project scope is concrete: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputReserve stock and start fulfilment with warehouse, carrier, notification, and customer-care systems
  2. 02Select the migration dispositionDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceDisposition decision record, Workload treatment backlog using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionEach workload has a justified strategy, owner, dependencies, target, effort estimate, and exception path. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “track delivery, return, or refund status”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Disposition decision record, Workload treatment backlog, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: improved scalability through pod and cluster autoscaling, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Disposition decision record
  • Workload treatment backlog
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

Each workload has a justified strategy, owner, dependencies, target, effort estimate, and exception path.

11
Design the target architectureOwner: Solution, cloud, data, network, and security architects
Purpose

Define user entry, compute, data, integration, identity, network, observability, backup, recovery, scaling, and operational boundaries in the destination.

Project application

The practical purpose of design the target architecture is to choose a target that is operable, secure, recoverable, and economically owned. The implementation follows “track delivery, return, or refund status” across product, inventory, and pricing services. The protected business boundary is customer identity and personal information. Existing project evidence establishes the delivery context: Implemented ArgoCD GitOps deployment workflows. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputTrack delivery, return, or refund status with traffic management, cache, database, and messaging layers
  2. 02Design the target architectureDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceTarget architecture and flows, Architecture decision records using Helm, ArgoCD, Terraform
  5. 05Exit decisionThe destination meets functional, non-functional, compliance, operational, and migration requirements without unexplained dependencies. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reconcile payment, inventory, and customer outcome”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Helm, ArgoCD, Terraform, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Implemented ArgoCD GitOps deployment workflows. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Target architecture and flows, Architecture decision records, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: established version-controlled GitOps releases, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Target architecture and flows
  • Architecture decision records
Applicable tools
HelmArgoCDTerraformAzure
Exit gate

The destination meets functional, non-functional, compliance, operational, and migration requirements without unexplained dependencies.

12
Design accounts, subscriptions, and landing-zone structureOwner: Cloud platform and enterprise architecture
Purpose

Separate environments and workloads using management groups, accounts, subscriptions, projects, resource groups, naming, tags, policy, budgets, and ownership.

Project application

This step turns design accounts, subscriptions, and landing-zone structure into a controlled decision: choose a target that is operable, secure, recoverable, and economically owned. The team traces the change through “reconcile payment, inventory, and customer outcome”, including its reliance on payment, fraud, tax, and address partners and its effect on catalogue, price, promotion, and inventory state. The implementation anchor comes from the project’s recorded scope: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputReconcile payment, inventory, and customer outcome with product, inventory, and pricing services
  2. 02Design accounts, subscriptions, and landing-zone structureDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceLanding-zone hierarchy, Naming, tagging, and ownership standard using ArgoCD, Terraform, Azure Policy
  5. 05Exit decisionEach target resource has the correct isolation, policy inheritance, cost owner, environment, and lifecycle boundary. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “discover a product and current offer”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use ArgoCD, Terraform, Azure Policy, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Landing-zone hierarchy, Naming, tagging, and ownership standard, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Landing-zone hierarchy
  • Naming, tagging, and ownership standard
Applicable tools
ArgoCDTerraformAzure PolicyAzure
Exit gate

Each target resource has the correct isolation, policy inheritance, cost owner, environment, and lifecycle boundary.

13
Design connectivity and DNSOwner: Network, cloud platform, and security teams
Purpose

Plan address space, routing, peering, VPN or private connectivity, firewalls, load balancing, ingress, egress, proxies, private endpoints, DNS, and cutover TTL.

Project application

Design connectivity and DNS is where the team must choose a target that is operable, secure, recoverable, and economically owned. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. The relevant project scope is concrete: Applied Azure Policy for governance and compliance. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with payment, fraud, tax, and address partners
  2. 02Design connectivity and DNSDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceNetwork and DNS design, Connectivity and traffic matrix using AKS, Kubernetes, Docker
  5. 05Exit decisionSource, target, users, dependencies, management, and recovery paths are routable without overlapping ranges or unintended exposure. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use AKS, Kubernetes, Docker, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Applied Azure Policy for governance and compliance. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Network and DNS design, Connectivity and traffic matrix, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: improved scalability through pod and cluster autoscaling, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Network and DNS design
  • Connectivity and traffic matrix
Applicable tools
AKSKubernetesDockerAzure
Exit gate

Source, target, users, dependencies, management, and recovery paths are routable without overlapping ranges or unintended exposure.

14
Design identity and accessOwner: Identity, security, platform, and workload owners
Purpose

Map users, groups, service identities, federation, managed identity, RBAC, privileged activation, emergency access, and separation of duties.

Project application

At this point, design identity and access must choose a target that is operable, secure, recoverable, and economically owned. The implementation follows “confirm price, inventory, and delivery promise” across traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. Existing project evidence establishes the delivery context: Developed reusable Helm charts for environment-specific deployments. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with warehouse, carrier, notification, and customer-care systems
  2. 02Design identity and accessDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceIdentity and RBAC mapping, Authentication and privileged-access design using Application Insights, AKS, Kubernetes
  5. 05Exit decisionHuman and workload access follows least privilege and has a migration, test, audit, and rollback approach. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Application Insights, AKS, Kubernetes, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Developed reusable Helm charts for environment-specific deployments. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Identity and RBAC mapping, Authentication and privileged-access design, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: established version-controlled GitOps releases, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Identity and RBAC mapping
  • Authentication and privileged-access design
Applicable tools
Application InsightsAKSKubernetesAzure
Exit gate

Human and workload access follows least privilege and has a migration, test, audit, and rollback approach.

15
Design security and compliance controlsOwner: Security architecture and compliance
Purpose

Define segmentation, hardening, vulnerability management, endpoint protection, policy, logging, threat detection, incident response, and evidence collection.

Project application

The practical purpose of design security and compliance controls is to choose a target that is operable, secure, recoverable, and economically owned. The team traces the change through “create and authorize the order”, including its reliance on product, inventory, and pricing services and its effect on customer identity and personal information. The implementation anchor comes from the project’s recorded scope: Monitored application and cluster health with Azure Monitor and Application Insights. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with traffic management, cache, database, and messaging layers
  2. 02Design security and compliance controlsDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceTarget security control matrix, Threat model and remediation plan using Helm, ArgoCD, Terraform
  5. 05Exit decisionRequired controls are automated, testable, owned, and connected to migration release gates. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Helm, ArgoCD, Terraform, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Monitored application and cluster health with Azure Monitor and Application Insights. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Target security control matrix, Threat model and remediation plan, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Target security control matrix
  • Threat model and remediation plan
Applicable tools
HelmArgoCDTerraformAzure
Exit gate

Required controls are automated, testable, owned, and connected to migration release gates.

16
Design encryption, keys, and secretsOwner: Security, PKI, data, and application teams
Purpose

Plan encryption in transit and at rest, key ownership, HSM or vault usage, secret transfer or rotation, certificate trust, custody, and recovery.

Project application

This step turns design encryption, keys, and secrets into a controlled decision: choose a target that is operable, secure, recoverable, and economically owned. In the retail and digital commerce context, the work follows the journey from “reserve stock and start fulfilment” through payment, fraud, tax, and address partners. The protected business boundary is catalogue, price, promotion, and inventory state. The relevant project scope is concrete: Optimized cloud cost and deployment frequency. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputReserve stock and start fulfilment with product, inventory, and pricing services
  2. 02Design encryption, keys, and secretsDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceKey and secret migration plan, Certificate and trust inventory using AKS, Kubernetes, Docker
  5. 05Exit decisionNo credential or private key is embedded in code, copied insecurely, left ownerless, or missing a rotation and rollback path. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “track delivery, return, or refund status”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use AKS, Kubernetes, Docker, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Optimized cloud cost and deployment frequency. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Key and secret migration plan, Certificate and trust inventory, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: improved scalability through pod and cluster autoscaling, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Key and secret migration plan
  • Certificate and trust inventory
Applicable tools
AKSKubernetesDockerAzure
Exit gate

No credential or private key is embedded in code, copied insecurely, left ownerless, or missing a rotation and rollback path.

17
Size the target platformOwner: Platform architecture, performance engineering, and FinOps
Purpose

Translate measured load, growth, service limits, redundancy, burst, licensing, and recovery capacity into target compute, data, storage, and network sizing.

Project application

Size the target platform is where the team must choose a target that is operable, secure, recoverable, and economically owned. The implementation follows “track delivery, return, or refund status” across warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. Existing project evidence establishes the delivery context: Containerized legacy applications with Docker and migrated workloads to AKS. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputTrack delivery, return, or refund status with payment, fraud, tax, and address partners
  2. 02Size the target platformDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceTarget sizing model, Quota and cost forecast using Azure Policy, Azure Monitor, Application Insights
  5. 05Exit decisionCapacity supports peak and failure scenarios with approved headroom, quota, and cost. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “reconcile payment, inventory, and customer outcome”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Policy, Azure Monitor, Application Insights, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Containerized legacy applications with Docker and migrated workloads to AKS. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Target sizing model, Quota and cost forecast, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: established version-controlled GitOps releases, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Target sizing model
  • Quota and cost forecast
Applicable tools
Azure PolicyAzure MonitorApplication InsightsAzure
Exit gate

Capacity supports peak and failure scenarios with approved headroom, quota, and cost.

18
Design availability and scalingOwner: Solution architect and SRE
Purpose

Choose zones, regions, replicas, load distribution, autoscaling signals, session behavior, state placement, rate limits, and degradation strategies.

Project application

At this point, design availability and scaling must choose a target that is operable, secure, recoverable, and economically owned. The team traces the change through “reconcile payment, inventory, and customer outcome”, including its reliance on traffic management, cache, database, and messaging layers and its effect on fulfilment and shipment events. The implementation anchor comes from the project’s recorded scope: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputReconcile payment, inventory, and customer outcome with warehouse, carrier, notification, and customer-care systems
  2. 02Design availability and scalingDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceAvailability and scaling design, Failure-mode analysis using ArgoCD, Terraform, Azure Policy
  5. 05Exit decisionNo required service target relies on a single unprotected component or an untested scaling assumption. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “discover a product and current offer”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use ArgoCD, Terraform, Azure Policy, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Availability and scaling design, Failure-mode analysis, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Availability and scaling design
  • Failure-mode analysis
Applicable tools
ArgoCDTerraformAzure PolicyAzure
Exit gate

No required service target relies on a single unprotected component or an untested scaling assumption.

19
Design backup and disaster recoveryOwner: Business continuity, data, security, and platform teams
Purpose

Define protected assets, frequency, retention, immutable copies, cross-region or cross-account recovery, orchestration, DNS, failback, and testing.

Project application

The practical purpose of design backup and disaster recovery is to choose a target that is operable, secure, recoverable, and economically owned. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through product, inventory, and pricing services. The protected business boundary is customer identity and personal information. The relevant project scope is concrete: Implemented ArgoCD GitOps deployment workflows. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with traffic management, cache, database, and messaging layers
  2. 02Design backup and disaster recoveryDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceBackup and DR architecture, Restore and failover test plan using Application Insights, AKS, Kubernetes
  5. 05Exit decisionThe complete target service can recover within approved RPO/RTO and protected copies meet security and retention obligations. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Application Insights, AKS, Kubernetes, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Implemented ArgoCD GitOps deployment workflows. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Backup and DR architecture, Restore and failover test plan, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: improved scalability through pod and cluster autoscaling, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Backup and DR architecture
  • Restore and failover test plan
Applicable tools
Application InsightsAKSKubernetesAzure
Exit gate

The complete target service can recover within approved RPO/RTO and protected copies meet security and retention obligations.

20
Design observability and supportOwner: SRE, observability engineering, and support lead
Purpose

Specify metrics, logs, traces, business journeys, alerts, dashboards, retention, on-call routing, runbooks, service catalogue, and operational ownership.

Project application

This step turns design observability and support into a controlled decision: choose a target that is operable, secure, recoverable, and economically owned. The implementation follows “confirm price, inventory, and delivery promise” across payment, fraud, tax, and address partners. The protected business boundary is catalogue, price, promotion, and inventory state. Existing project evidence establishes the delivery context: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with product, inventory, and pricing services
  2. 02Design observability and supportDecide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceObservability design, Target operating model and support RACI using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionThe migrated service can be detected, diagnosed, restored, and escalated from day one. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to decide workload disposition and design landing-zone, network, identity, data, security, scaling, backup, observability, and support boundaries. Project scope for this action: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Observability design, Target operating model and support RACI, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: established version-controlled GitOps releases, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Observability design
  • Target operating model and support RACI
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

The migrated service can be detected, diagnosed, restored, and escalated from day one.

Build the landing zone

4 steps

Provision governed target foundations through versioned infrastructure code and prove identity, network, policy, security, monitoring, and operational readiness.

21
Create reusable infrastructure modules and stateOwner: Platform engineering and DevOps
Purpose

Build reviewed modules for governance, network, identity, security, compute, data, storage, monitoring, backup, and recovery with protected remote state.

Project application

Create reusable infrastructure modules and state is where the team must create the governed destination before moving business workload. The team traces the change through “create and authorize the order”, including its reliance on warehouse, carrier, notification, and customer-care systems and its effect on customer baskets, orders, payments, and refunds. The implementation anchor comes from the project’s recorded scope: Applied Azure Policy for governance and compliance. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with payment, fraud, tax, and address partners
  2. 02Create reusable infrastructure modules and stateProvision target environments from versioned modules and activate policy, identity, connectivity, logging, security, budget, and recovery foundations
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceVersioned infrastructure repository, Module tests and state controls using Helm, ArgoCD, Terraform
  5. 05Exit decisionA clean target can be planned reproducibly with no secrets in state output or unmanaged manual dependency. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Helm, ArgoCD, Terraform, Azure to provision target environments from versioned modules and activate policy, identity, connectivity, logging, security, budget, and recovery foundations. Project scope for this action: Applied Azure Policy for governance and compliance. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Versioned infrastructure repository, Module tests and state controls, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Versioned infrastructure repository
  • Module tests and state controls
Applicable tools
HelmArgoCDTerraformAzure
Exit gate

A clean target can be planned reproducibly with no secrets in state output or unmanaged manual dependency.

22
Provision target environmentsOwner: DevOps and cloud platform engineering
Purpose

Create development, test, staging, production, and recovery foundations through approved automation and environment-specific configuration.

Project application

At this point, provision target environments must create the governed destination before moving business workload. In the retail and digital commerce context, the work follows the journey from “reserve stock and start fulfilment” through traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. The relevant project scope is concrete: Developed reusable Helm charts for environment-specific deployments. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputReserve stock and start fulfilment with warehouse, carrier, notification, and customer-care systems
  2. 02Provision target environmentsProvision target environments from versioned modules and activate policy, identity, connectivity, logging, security, budget, and recovery foundations
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidencePlan/apply and deployment records, Environment inventory and ownership using Docker, Helm, ArgoCD
  5. 05Exit decisionResources match reviewed code, naming, tags, isolation, policy, budget, identity, and observability requirements. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “track delivery, return, or refund status”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Docker, Helm, ArgoCD, Azure to provision target environments from versioned modules and activate policy, identity, connectivity, logging, security, budget, and recovery foundations. Project scope for this action: Developed reusable Helm charts for environment-specific deployments. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Plan/apply and deployment records, Environment inventory and ownership, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: improved scalability through pod and cluster autoscaling, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Plan/apply and deployment records
  • Environment inventory and ownership
Applicable tools
DockerHelmArgoCDAzure
Exit gate

Resources match reviewed code, naming, tags, isolation, policy, budget, identity, and observability requirements.

23
Validate policy and security guardrailsOwner: Cloud security and platform governance
Purpose

Test preventive and detective policy, network exposure, encryption, images, patch level, logging, backup, vulnerability, identity, and compliance rules.

Project application

The practical purpose of validate policy and security guardrails is to create the governed destination before moving business workload. The implementation follows “track delivery, return, or refund status” across product, inventory, and pricing services. The protected business boundary is customer identity and personal information. Existing project evidence establishes the delivery context: Monitored application and cluster health with Azure Monitor and Application Insights. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputTrack delivery, return, or refund status with traffic management, cache, database, and messaging layers
  2. 02Validate policy and security guardrailsProvision target environments from versioned modules and activate policy, identity, connectivity, logging, security, budget, and recovery foundations
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidencePolicy compliance report, Security test and exception register using Helm, ArgoCD, Terraform
  5. 05Exit decisionCritical violations block workload onboarding and every exception has owner, justification, expiry, and compensating control. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reconcile payment, inventory, and customer outcome”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Helm, ArgoCD, Terraform, Azure to provision target environments from versioned modules and activate policy, identity, connectivity, logging, security, budget, and recovery foundations. Project scope for this action: Monitored application and cluster health with Azure Monitor and Application Insights. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Policy compliance report, Security test and exception register, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: established version-controlled GitOps releases, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Policy compliance report
  • Security test and exception register
Applicable tools
HelmArgoCDTerraformAzure
Exit gate

Critical violations block workload onboarding and every exception has owner, justification, expiry, and compensating control.

24
Prepare dependency endpoints and operationsOwner: Network, integration, identity, vendor, and operations teams
Purpose

Create target endpoints, firewall rules, DNS entries, certificates, service accounts, API contracts, monitoring integrations, tickets, and vendor changes.

Project application

This step turns prepare dependency endpoints and operations into a controlled decision: create the governed destination before moving business workload. The team traces the change through “reconcile payment, inventory, and customer outcome”, including its reliance on payment, fraud, tax, and address partners and its effect on catalogue, price, promotion, and inventory state. The implementation anchor comes from the project’s recorded scope: Optimized cloud cost and deployment frequency. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputReconcile payment, inventory, and customer outcome with product, inventory, and pricing services
  2. 02Prepare dependency endpoints and operationsProvision target environments from versioned modules and activate policy, identity, connectivity, logging, security, budget, and recovery foundations
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceDependency readiness matrix, Connectivity and support tests using Azure Monitor, Application Insights, AKS
  5. 05Exit decisionEvery dependency required by the pilot is reachable, authenticated, monitored, owned, and safe to activate. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “discover a product and current offer”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Monitor, Application Insights, AKS, Azure to provision target environments from versioned modules and activate policy, identity, connectivity, logging, security, budget, and recovery foundations. Project scope for this action: Optimized cloud cost and deployment frequency. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Dependency readiness matrix, Connectivity and support tests, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Dependency readiness matrix
  • Connectivity and support tests
Applicable tools
Azure MonitorApplication InsightsAKSAzure
Exit gate

Every dependency required by the pilot is reachable, authenticated, monitored, owned, and safe to activate.

Prepare workload and data

7 steps

Remediate compatibility, design data movement, group waves, and create detailed cutover and rollback procedures.

25
Remediate workload compatibilityOwner: Application engineering and platform specialists
Purpose

Update unsupported operating systems, runtimes, libraries, paths, drivers, configuration, identity, storage, network assumptions, and platform integrations.

Project application

Remediate workload compatibility is where the team must make the application, data, dependencies, and operators cutover-ready. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. The relevant project scope is concrete: Containerized legacy applications with Docker and migrated workloads to AKS. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with payment, fraud, tax, and address partners
  2. 02Remediate workload compatibilityRemediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceCompatibility backlog and fixes, Build and startup test results using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionThe workload starts in the target using supported components without relying on hidden source-environment behavior. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to remediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks. Project scope for this action: Containerized legacy applications with Docker and migrated workloads to AKS. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Compatibility backlog and fixes, Build and startup test results, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: improved scalability through pod and cluster autoscaling, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Compatibility backlog and fixes
  • Build and startup test results
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

The workload starts in the target using supported components without relying on hidden source-environment behavior.

26
Containerize or replatform where requiredOwner: Application, container, and platform engineering
Purpose

Create secure images or managed-platform definitions with non-root execution, external configuration, health probes, resource limits, immutable versions, and logging.

Project application

At this point, containerize or replatform where required must make the application, data, dependencies, and operators cutover-ready. The implementation follows “confirm price, inventory, and delivery promise” across traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. Existing project evidence establishes the delivery context: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with warehouse, carrier, notification, and customer-care systems
  2. 02Containerize or replatform where requiredRemediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceSigned artifact or platform package, Security and runtime validation using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionThe migrated package is reproducible, scanned, versioned, deployable, observable, and rollback-capable. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to remediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks. Project scope for this action: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Signed artifact or platform package, Security and runtime validation, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: established version-controlled GitOps releases, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Signed artifact or platform package
  • Security and runtime validation
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

The migrated package is reproducible, scanned, versioned, deployable, observable, and rollback-capable.

27
Design the data migration methodOwner: Data architect, DBA, storage, and business data owner
Purpose

Select offline copy, backup/restore, replication, change data capture, export/import, transfer appliance, or staged synchronization by data set.

Project application

The practical purpose of design the data migration method is to make the application, data, dependencies, and operators cutover-ready. The team traces the change through “create and authorize the order”, including its reliance on product, inventory, and pricing services and its effect on customer identity and personal information. The implementation anchor comes from the project’s recorded scope: Implemented ArgoCD GitOps deployment workflows. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with traffic management, cache, database, and messaging layers
  2. 02Design the data migration methodRemediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceData migration strategy, Dataset method and ownership matrix using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionEach data set has a compatible method, encryption, expected duration, bandwidth, validation, retry, freeze, and rollback rule. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to remediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks. Project scope for this action: Implemented ArgoCD GitOps deployment workflows. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Data migration strategy, Dataset method and ownership matrix, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Data migration strategy
  • Dataset method and ownership matrix
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

Each data set has a compatible method, encryption, expected duration, bandwidth, validation, retry, freeze, and rollback rule.

28
Validate schema and platform compatibilityOwner: Database engineering and application owners
Purpose

Compare engines, versions, schema, collation, data types, indexes, procedures, extensions, identity sequences, permissions, and client drivers.

Project application

This step turns validate schema and platform compatibility into a controlled decision: make the application, data, dependencies, and operators cutover-ready. In the retail and digital commerce context, the work follows the journey from “reserve stock and start fulfilment” through payment, fraud, tax, and address partners. The protected business boundary is catalogue, price, promotion, and inventory state. The relevant project scope is concrete: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputReserve stock and start fulfilment with product, inventory, and pricing services
  2. 02Validate schema and platform compatibilityRemediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceCompatibility assessment, Schema remediation and test report using Azure Policy, Azure Monitor, Application Insights
  5. 05Exit decisionAll unsupported behavior is remediated or accepted with an executable workaround and regression coverage. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “track delivery, return, or refund status”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Policy, Azure Monitor, Application Insights, Azure to remediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks. Project scope for this action: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Compatibility assessment, Schema remediation and test report, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: improved scalability through pod and cluster autoscaling, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Compatibility assessment
  • Schema remediation and test report
Applicable tools
Azure PolicyAzure MonitorApplication InsightsAzure
Exit gate

All unsupported behavior is remediated or accepted with an executable workaround and regression coverage.

29
Configure replication or staged transferOwner: Database, storage, and migration engineering
Purpose

Build encrypted connectivity, seed initial data, start incremental synchronization, monitor lag, protect credentials, and define resynchronization procedures.

Project application

Configure replication or staged transfer is where the team must make the application, data, dependencies, and operators cutover-ready. The implementation follows “track delivery, return, or refund status” across warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. Existing project evidence establishes the delivery context: Applied Azure Policy for governance and compliance. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputTrack delivery, return, or refund status with payment, fraud, tax, and address partners
  2. 02Configure replication or staged transferRemediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceReplication or transfer configuration, Lag, throughput, and integrity dashboard using ArgoCD, Terraform, Azure Policy
  5. 05Exit decisionThe transfer remains stable at representative change rates and can reach the cutover RPO within the window. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “reconcile payment, inventory, and customer outcome”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use ArgoCD, Terraform, Azure Policy, Azure to remediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks. Project scope for this action: Applied Azure Policy for governance and compliance. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Replication or transfer configuration, Lag, throughput, and integrity dashboard, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: established version-controlled GitOps releases, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Replication or transfer configuration
  • Lag, throughput, and integrity dashboard
Applicable tools
ArgoCDTerraformAzure PolicyAzure
Exit gate

The transfer remains stable at representative change rates and can reach the cutover RPO within the window.

30
Group workloads into migration wavesOwner: Migration program, architecture, and business owners
Purpose

Sequence workloads by dependency, criticality, complexity, data gravity, team capacity, blackout periods, rollback coupling, and learning value.

Project application

At this point, group workloads into migration waves must make the application, data, dependencies, and operators cutover-ready. The team traces the change through “reconcile payment, inventory, and customer outcome”, including its reliance on traffic management, cache, database, and messaging layers and its effect on fulfilment and shipment events. The implementation anchor comes from the project’s recorded scope: Developed reusable Helm charts for environment-specific deployments. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputReconcile payment, inventory, and customer outcome with warehouse, carrier, notification, and customer-care systems
  2. 02Group workloads into migration wavesRemediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceApproved wave plan, Wave dependency and resource schedule using AKS, Kubernetes, Docker
  5. 05Exit decisionNo wave splits an inseparable dependency or exceeds available technical, business, vendor, validation, or rollback capacity. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “discover a product and current offer”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use AKS, Kubernetes, Docker, Azure to remediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks. Project scope for this action: Developed reusable Helm charts for environment-specific deployments. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Approved wave plan, Wave dependency and resource schedule, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Approved wave plan
  • Wave dependency and resource schedule
Applicable tools
AKSKubernetesDockerAzure
Exit gate

No wave splits an inseparable dependency or exceeds available technical, business, vendor, validation, or rollback capacity.

31
Create cutover and rollback runbooksOwner: Migration lead with all resolver teams
Purpose

Write minute-by-minute prerequisites, owners, communications, freeze, backup, sync, shutdown, start order, routing, validation, decision, rollback, and escalation actions.

Project application

The practical purpose of create cutover and rollback runbooks is to make the application, data, dependencies, and operators cutover-ready. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through product, inventory, and pricing services. The protected business boundary is customer identity and personal information. The relevant project scope is concrete: Monitored application and cluster health with Azure Monitor and Application Insights. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with traffic management, cache, database, and messaging layers
  2. 02Create cutover and rollback runbooksRemediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceVersion-controlled cutover runbook, Rollback runbook and call tree using AKS, Kubernetes, Docker
  5. 05Exit decisionEvery action has owner, duration, command or procedure, evidence, dependency, stop condition, and safe reversal. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use AKS, Kubernetes, Docker, Azure to remediate compatibility, build transferable artifacts, configure replication, group safe waves, and write executable cutover and rollback runbooks. Project scope for this action: Monitored application and cluster health with Azure Monitor and Application Insights. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Version-controlled cutover runbook, Rollback runbook and call tree, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: improved scalability through pod and cluster autoscaling, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Version-controlled cutover runbook
  • Rollback runbook and call tree
Applicable tools
AKSKubernetesDockerAzure
Exit gate

Every action has owner, duration, command or procedure, evidence, dependency, stop condition, and safe reversal.

Pilot and rehearse

7 steps

Use a representative pilot and timed rehearsal to validate tooling, performance, security, integration, recovery, evidence, and decision thresholds.

32
Select a representative pilotOwner: Migration architect and business owner
Purpose

Choose a bounded workload that exercises meaningful network, identity, data, monitoring, deployment, integration, and support patterns without unacceptable blast radius.

Project application

This step turns select a representative pilot into a controlled decision: learn under representative conditions before production exposure. The implementation follows “confirm price, inventory, and delivery promise” across payment, fraud, tax, and address partners. The protected business boundary is catalogue, price, promotion, and inventory state. Existing project evidence establishes the delivery context: Optimized cloud cost and deployment frequency. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with product, inventory, and pricing services
  2. 02Select a representative pilotMigrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidencePilot rationale and scope, Pilot success and rollback criteria using Docker, Helm, ArgoCD
  5. 05Exit decisionThe pilot produces reusable learning for later waves and has sufficient business availability for validation. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Docker, Helm, ArgoCD, Azure to migrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence. Project scope for this action: Optimized cloud cost and deployment frequency. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Pilot rationale and scope, Pilot success and rollback criteria, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: established version-controlled GitOps releases, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Pilot rationale and scope
  • Pilot success and rollback criteria
Applicable tools
DockerHelmArgoCDAzure
Exit gate

The pilot produces reusable learning for later waves and has sufficient business availability for validation.

33
Execute the pilot migrationOwner: Migration execution team
Purpose

Run discovery updates, infrastructure deployment, workload release, data transfer, dependency changes, traffic movement, validation, rollback readiness, and communications.

Project application

Execute the pilot migration is where the team must learn under representative conditions before production exposure. The team traces the change through “create and authorize the order”, including its reliance on warehouse, carrier, notification, and customer-care systems and its effect on customer baskets, orders, payments, and refunds. The implementation anchor comes from the project’s recorded scope: Containerized legacy applications with Docker and migrated workloads to AKS. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with payment, fraud, tax, and address partners
  2. 02Execute the pilot migrationMigrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidencePilot execution timeline, Step evidence and defects using AKS, Kubernetes, Docker
  5. 05Exit decisionThe pilot completes using the runbook and every deviation becomes an owned template, automation, or design improvement. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use AKS, Kubernetes, Docker, Azure to migrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence. Project scope for this action: Containerized legacy applications with Docker and migrated workloads to AKS. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Pilot execution timeline, Step evidence and defects, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Pilot execution timeline
  • Step evidence and defects
Applicable tools
AKSKubernetesDockerAzure
Exit gate

The pilot completes using the runbook and every deviation becomes an owned template, automation, or design improvement.

34
Validate technical operationOwner: Application, platform, data, network, and SRE teams
Purpose

Verify health, configuration, connectivity, identity, runtime, logs, scaling, backup, scheduled work, queues, replication, failover, and management access.

Project application

At this point, validate technical operation must learn under representative conditions before production exposure. In the retail and digital commerce context, the work follows the journey from “reserve stock and start fulfilment” through traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. The relevant project scope is concrete: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputReserve stock and start fulfilment with warehouse, carrier, notification, and customer-care systems
  2. 02Validate technical operationMigrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceTechnical validation report, Platform and dependency sign-offs using Kubernetes, Docker, Helm
  5. 05Exit decisionThe target has no unresolved critical functional, operability, security, or recovery defect. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “track delivery, return, or refund status”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Kubernetes, Docker, Helm, Azure to migrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence. Project scope for this action: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Technical validation report, Platform and dependency sign-offs, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: improved scalability through pod and cluster autoscaling, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Technical validation report
  • Platform and dependency sign-offs
Applicable tools
KubernetesDockerHelmAzure
Exit gate

The target has no unresolved critical functional, operability, security, or recovery defect.

35
Validate integrations and business journeysOwner: QA, integration, and business process owners
Purpose

Run end-to-end journeys across upstream and downstream services, asynchronous paths, data reconciliation, reports, notifications, and operational procedures.

Project application

The practical purpose of validate integrations and business journeys is to learn under representative conditions before production exposure. The implementation follows “track delivery, return, or refund status” across product, inventory, and pricing services. The protected business boundary is customer identity and personal information. Existing project evidence establishes the delivery context: Implemented ArgoCD GitOps deployment workflows. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputTrack delivery, return, or refund status with traffic management, cache, database, and messaging layers
  2. 02Validate integrations and business journeysMigrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceIntegration test pack, Business validation and reconciliation using Azure Monitor, Application Insights, AKS
  5. 05Exit decisionCritical journeys produce correct business and data outcomes across every target dependency. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reconcile payment, inventory, and customer outcome”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Monitor, Application Insights, AKS, Azure to migrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence. Project scope for this action: Implemented ArgoCD GitOps deployment workflows. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Integration test pack, Business validation and reconciliation, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: established version-controlled GitOps releases, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Integration test pack
  • Business validation and reconciliation
Applicable tools
Azure MonitorApplication InsightsAKSAzure
Exit gate

Critical journeys produce correct business and data outcomes across every target dependency.

36
Run performance, security, and recovery testsOwner: Performance, security, continuity, and engineering teams
Purpose

Test representative and peak load, scaling, failover, restore, vulnerability, identity, segmentation, encryption, resilience, and operational response.

Project application

This step turns run performance, security, and recovery tests into a controlled decision: learn under representative conditions before production exposure. The team traces the change through “reconcile payment, inventory, and customer outcome”, including its reliance on payment, fraud, tax, and address partners and its effect on catalogue, price, promotion, and inventory state. The implementation anchor comes from the project’s recorded scope: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputReconcile payment, inventory, and customer outcome with product, inventory, and pricing services
  2. 02Run performance, security, and recovery testsMigrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidencePerformance and resilience report, Security and recovery evidence using AKS, Kubernetes, Docker
  5. 05Exit decisionMeasured target behavior meets the approved baseline, service objectives, RPO/RTO, and security gates. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “discover a product and current offer”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use AKS, Kubernetes, Docker, Azure to migrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence. Project scope for this action: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Performance and resilience report, Security and recovery evidence, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Performance and resilience report
  • Security and recovery evidence
Applicable tools
AKSKubernetesDockerAzure
Exit gate

Measured target behavior meets the approved baseline, service objectives, RPO/RTO, and security gates.

37
Remediate pilot defectsOwner: Workload, platform, migration, and vendor teams
Purpose

Prioritize defects by cutover risk, correct code, infrastructure, data, process, monitoring, or documentation, and rerun affected tests.

Project application

Remediate pilot defects is where the team must learn under representative conditions before production exposure. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. The relevant project scope is concrete: Applied Azure Policy for governance and compliance. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with payment, fraud, tax, and address partners
  2. 02Remediate pilot defectsMigrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceDefect register and fixes, Regression and closure results using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionNo open defect can cause failed cutover, data inconsistency, security breach, unsupported operation, or missed recovery target. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to migrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence. Project scope for this action: Applied Azure Policy for governance and compliance. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Defect register and fixes, Regression and closure results, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: improved scalability through pod and cluster autoscaling, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Defect register and fixes
  • Regression and closure results
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

No open defect can cause failed cutover, data inconsistency, security breach, unsupported operation, or missed recovery target.

38
Rehearse the production cutoverOwner: Cutover manager and all named operators
Purpose

Run the production sequence with realistic data volume, roles, tools, communication, checkpoints, durations, rollback, and evidence capture.

Project application

At this point, rehearse the production cutover must learn under representative conditions before production exposure. The implementation follows “confirm price, inventory, and delivery promise” across traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. Existing project evidence establishes the delivery context: Developed reusable Helm charts for environment-specific deployments. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with warehouse, carrier, notification, and customer-care systems
  2. 02Rehearse the production cutoverMigrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceTimed rehearsal report, Updated critical path and runbooks using ArgoCD, Terraform, Azure Policy
  5. 05Exit decisionExpected cutover and rollback fit the approved window with contingency, and each operator has demonstrated the assigned action. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use ArgoCD, Terraform, Azure Policy, Azure to migrate a meaningful pilot, validate technical and business paths, test performance, security and recovery, fix defects, and time the final sequence. Project scope for this action: Developed reusable Helm charts for environment-specific deployments. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Timed rehearsal report, Updated critical path and runbooks, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: established version-controlled GitOps releases, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Timed rehearsal report
  • Updated critical path and runbooks
Applicable tools
ArgoCDTerraformAzure PolicyAzure
Exit gate

Expected cutover and rollback fit the approved window with contingency, and each operator has demonstrated the assigned action.

Execute the cutover

7 steps

Authorize the wave, freeze change, synchronize data, start dependencies in order, move traffic, reconcile outcomes, and make an evidence-based go/no-go decision.

39
Authorize the migration changeOwner: Change authority, business, security, operations, and migration leadership
Purpose

Review readiness, test evidence, risk, staffing, dependency status, backups, communication, validation, rollback, and blackout constraints.

Project application

The practical purpose of authorize the migration change is to move service authority using explicit go, hold, and rollback criteria. The team traces the change through “create and authorize the order”, including its reliance on product, inventory, and pricing services and its effect on customer identity and personal information. The implementation anchor comes from the project’s recorded scope: Monitored application and cluster health with Azure Monitor and Application Insights. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with traffic management, cache, database, and messaging layers
  2. 02Authorize the migration changeAuthorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceApproved change and readiness checklist, Recorded go/no-go criteria using Helm, ArgoCD, Terraform
  5. 05Exit decisionAuthorization covers the exact wave, artifact, data, window, operators, target, and recovery plan. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Helm, ArgoCD, Terraform, Azure to authorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes. Project scope for this action: Monitored application and cluster health with Azure Monitor and Application Insights. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Approved change and readiness checklist, Recorded go/no-go criteria, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Approved change and readiness checklist
  • Recorded go/no-go criteria
Applicable tools
HelmArgoCDTerraformAzure
Exit gate

Authorization covers the exact wave, artifact, data, window, operators, target, and recovery plan.

40
Freeze source change and capture recovery pointsOwner: Application, data, release, and business owners
Purpose

Stop deployments and business writes as planned, record source versions and configuration, take validated backups or snapshots, and confirm rollback reachability.

Project application

This step turns freeze source change and capture recovery points into a controlled decision: move service authority using explicit go, hold, and rollback criteria. In the retail and digital commerce context, the work follows the journey from “reserve stock and start fulfilment” through payment, fraud, tax, and address partners. The protected business boundary is catalogue, price, promotion, and inventory state. The relevant project scope is concrete: Optimized cloud cost and deployment frequency. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputReserve stock and start fulfilment with product, inventory, and pricing services
  2. 02Freeze source change and capture recovery pointsAuthorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceFreeze confirmation, Protected recovery points and source baseline using Helm, ArgoCD, Terraform
  5. 05Exit decisionNo untracked change can enter the source and every required rollback asset is current, protected, and restorable. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “track delivery, return, or refund status”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Helm, ArgoCD, Terraform, Azure to authorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes. Project scope for this action: Optimized cloud cost and deployment frequency. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Freeze confirmation, Protected recovery points and source baseline, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: improved scalability through pod and cluster autoscaling, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Freeze confirmation
  • Protected recovery points and source baseline
Applicable tools
HelmArgoCDTerraformAzure
Exit gate

No untracked change can enter the source and every required rollback asset is current, protected, and restorable.

41
Complete final synchronizationOwner: Data and migration engineering
Purpose

Drain or pause writers, apply the final delta, monitor lag, reconcile counts and checksums, capture sequence state, and preserve transfer logs.

Project application

Complete final synchronization is where the team must move service authority using explicit go, hold, and rollback criteria. The implementation follows “track delivery, return, or refund status” across warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. Existing project evidence establishes the delivery context: Containerized legacy applications with Docker and migrated workloads to AKS. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputTrack delivery, return, or refund status with payment, fraud, tax, and address partners
  2. 02Complete final synchronizationAuthorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceFinal sync and lag report, Pre-cutover reconciliation using Helm, ArgoCD, Terraform
  5. 05Exit decisionData is within approved RPO, consistent at the agreed boundary, and safe to activate in the destination. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “reconcile payment, inventory, and customer outcome”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Helm, ArgoCD, Terraform, Azure to authorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes. Project scope for this action: Containerized legacy applications with Docker and migrated workloads to AKS. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Final sync and lag report, Pre-cutover reconciliation, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: established version-controlled GitOps releases, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Final sync and lag report
  • Pre-cutover reconciliation
Applicable tools
HelmArgoCDTerraformAzure
Exit gate

Data is within approved RPO, consistent at the agreed boundary, and safe to activate in the destination.

42
Start target services in dependency orderOwner: Platform, data, application, and integration teams
Purpose

Activate network and identity, data, messaging, shared services, applications, scheduled processes, monitoring, and user entry points in the rehearsed order.

Project application

At this point, start target services in dependency order must move service authority using explicit go, hold, and rollback criteria. The team traces the change through “reconcile payment, inventory, and customer outcome”, including its reliance on traffic management, cache, database, and messaging layers and its effect on fulfilment and shipment events. The implementation anchor comes from the project’s recorded scope: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputReconcile payment, inventory, and customer outcome with warehouse, carrier, notification, and customer-care systems
  2. 02Start target services in dependency orderAuthorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceTarget activation log, Component health and version inventory using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionEvery lower dependency is healthy and validated before dependent traffic or processing begins. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “discover a product and current offer”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to authorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes. Project scope for this action: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Target activation log, Component health and version inventory, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Target activation log
  • Component health and version inventory
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

Every lower dependency is healthy and validated before dependent traffic or processing begins.

43
Move routing, DNS, and user trafficOwner: Network, platform, release, and business operations
Purpose

Change load balancer, gateway, proxy, DNS, endpoint, queue, schedule, or client routing using controlled cohorts and monitored checkpoints.

Project application

The practical purpose of move routing, DNS, and user traffic is to move service authority using explicit go, hold, and rollback criteria. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through product, inventory, and pricing services. The protected business boundary is customer identity and personal information. The relevant project scope is concrete: Implemented ArgoCD GitOps deployment workflows. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with traffic management, cache, database, and messaging layers
  2. 02Move routing, DNS, and user trafficAuthorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceTraffic change record, Propagation and telemetry snapshots using Application Insights, AKS, Kubernetes
  5. 05Exit decisionExpected users and integrations reach only the intended target and error, latency, and business metrics remain within thresholds. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Application Insights, AKS, Kubernetes, Azure to authorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes. Project scope for this action: Implemented ArgoCD GitOps deployment workflows. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Traffic change record, Propagation and telemetry snapshots, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: improved scalability through pod and cluster autoscaling, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Traffic change record
  • Propagation and telemetry snapshots
Applicable tools
Application InsightsAKSKubernetesAzure
Exit gate

Expected users and integrations reach only the intended target and error, latency, and business metrics remain within thresholds.

44
Reconcile data and business outcomesOwner: Business validators, data owners, QA, and finance where applicable
Purpose

Compare records, totals, balances, files, messages, reports, timestamps, user journeys, and exceptions between the migration boundary and target.

Project application

This step turns reconcile data and business outcomes into a controlled decision: move service authority using explicit go, hold, and rollback criteria. The implementation follows “confirm price, inventory, and delivery promise” across payment, fraud, tax, and address partners. The protected business boundary is catalogue, price, promotion, and inventory state. Existing project evidence establishes the delivery context: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with product, inventory, and pricing services
  2. 02Reconcile data and business outcomesAuthorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceSigned reconciliation report, Exception and remediation register using AKS, Kubernetes, Docker
  5. 05Exit decisionCritical data and transactions are complete, accurate, unique, timely, and accepted by the accountable business owner. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use AKS, Kubernetes, Docker, Azure to authorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes. Project scope for this action: Configured Horizontal Pod Autoscaler and Cluster Autoscaler. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Signed reconciliation report, Exception and remediation register, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: established version-controlled GitOps releases, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Signed reconciliation report
  • Exception and remediation register
Applicable tools
AKSKubernetesDockerAzure
Exit gate

Critical data and transactions are complete, accurate, unique, timely, and accepted by the accountable business owner.

45
Make the go, hold, or rollback decisionOwner: Business owner and cutover commander
Purpose

Compare current technical, data, security, performance, business, support, time, and recovery evidence with documented decision thresholds.

Project application

Make the go, hold, or rollback decision is where the team must move service authority using explicit go, hold, and rollback criteria. The team traces the change through “create and authorize the order”, including its reliance on warehouse, carrier, notification, and customer-care systems and its effect on customer baskets, orders, payments, and refunds. The implementation anchor comes from the project’s recorded scope: Applied Azure Policy for governance and compliance. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with payment, fraud, tax, and address partners
  2. 02Make the go, hold, or rollback decisionAuthorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceTimestamped decision record, Gate evidence and dissent or exception using Helm, ArgoCD, Terraform
  5. 05Exit decisionThe selected decision is authorized while the rollback path and operational window remain viable. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Helm, ArgoCD, Terraform, Azure to authorize the wave, freeze change, protect recovery points, synchronize data, start dependencies in order, shift traffic, and reconcile outcomes. Project scope for this action: Applied Azure Policy for governance and compliance. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Timestamped decision record, Gate evidence and dissent or exception, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Timestamped decision record
  • Gate evidence and dissent or exception
Applicable tools
HelmArgoCDTerraformAzure
Exit gate

The selected decision is authorized while the rollback path and operational window remain viable.

Stabilize and hand over

3 steps

Observe the migrated workload intensely, resolve defects, transfer accountable operations, and confirm service targets under real usage.

46
Run migration hypercareOwner: Migration, application, platform, data, network, and support teams
Purpose

Provide enhanced staffing and monitor technical and business signals, tickets, integration delays, data drift, cost, capacity, and user feedback after cutover.

Project application

At this point, run migration hypercare must prove the destination under real usage and transfer accountable ownership. In the retail and digital commerce context, the work follows the journey from “reserve stock and start fulfilment” through traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. The relevant project scope is concrete: Developed reusable Helm charts for environment-specific deployments. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputReserve stock and start fulfilment with warehouse, carrier, notification, and customer-care systems
  2. 02Run migration hypercareRun enhanced monitoring, control defects, reconcile operations, confirm SLOs, complete knowledge transfer, and remove temporary access
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceHypercare dashboard and rota, Issue, trend, and decision log using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionThe service sustains normal load for the agreed period and critical issues have clear owners and recovery paths. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “track delivery, return, or refund status”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to run enhanced monitoring, control defects, reconcile operations, confirm SLOs, complete knowledge transfer, and remove temporary access. Project scope for this action: Developed reusable Helm charts for environment-specific deployments. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Hypercare dashboard and rota, Issue, trend, and decision log, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: improved scalability through pod and cluster autoscaling, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Hypercare dashboard and rota
  • Issue, trend, and decision log
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

The service sustains normal load for the agreed period and critical issues have clear owners and recovery paths.

47
Resolve post-cutover incidents and defectsOwner: Incident commander and responsible engineering team
Purpose

Triage by recent migration change, protect evidence, mitigate safely, reconcile affected data, communicate impact, and update migration patterns.

Project application

The practical purpose of resolve post-cutover incidents and defects is to prove the destination under real usage and transfer accountable ownership. The implementation follows “track delivery, return, or refund status” across product, inventory, and pricing services. The protected business boundary is customer identity and personal information. Existing project evidence establishes the delivery context: Monitored application and cluster health with Azure Monitor and Application Insights. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputTrack delivery, return, or refund status with traffic management, cache, database, and messaging layers
  2. 02Resolve post-cutover incidents and defectsRun enhanced monitoring, control defects, reconcile operations, confirm SLOs, complete knowledge transfer, and remove temporary access
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceIncident and defect records, Corrective validation and learning using Azure Policy, Azure Monitor, Application Insights
  5. 05Exit decisionUser impact and data risk are removed and the same defect is prevented in remaining waves. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reconcile payment, inventory, and customer outcome”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Azure Policy, Azure Monitor, Application Insights, Azure to run enhanced monitoring, control defects, reconcile operations, confirm SLOs, complete knowledge transfer, and remove temporary access. Project scope for this action: Monitored application and cluster health with Azure Monitor and Application Insights. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Incident and defect records, Corrective validation and learning, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: established version-controlled GitOps releases, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Incident and defect records
  • Corrective validation and learning
Applicable tools
Azure PolicyAzure MonitorApplication InsightsAzure
Exit gate

User impact and data risk are removed and the same defect is prevented in remaining waves.

48
Transfer service ownership to operationsOwner: Migration lead, service owner, and support manager
Purpose

Handover architecture, inventory, dashboards, alerts, runbooks, access, vendors, backups, recovery, known errors, costs, SLAs, and escalation.

Project application

This step turns transfer service ownership to operations into a controlled decision: prove the destination under real usage and transfer accountable ownership. The team traces the change through “reconcile payment, inventory, and customer outcome”, including its reliance on payment, fraud, tax, and address partners and its effect on catalogue, price, promotion, and inventory state. The implementation anchor comes from the project’s recorded scope: Optimized cloud cost and deployment frequency. Apply idempotent order and payment processing to address the risk that stale cache or delayed events create inconsistent channel behavior; judge the result using payment authorization and order durability.

Step execution flow
  1. 01Readiness inputReconcile payment, inventory, and customer outcome with product, inventory, and pricing services
  2. 02Transfer service ownership to operationsRun enhanced monitoring, control defects, reconcile operations, confirm SLOs, complete knowledge transfer, and remove temporary access
  3. 03Control pointInventory, payment, shipment, and refund reconciliation
  4. 04EvidenceOperational acceptance, Runbook, CMDB, access, and support updates using ArgoCD, Terraform, Azure Policy
  5. 05Exit decisionOn-call staff independently detect, diagnose, restore, escalate, and operate the target against service objectives. Confirm inventory accuracy and fulfilment timeliness.
Detailed activities
  1. Apply this step to the source and destination path for “discover a product and current offer”. Identify warehouse, carrier, notification, and customer-care systems, customer baskets, orders, payments, and refunds, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use ArgoCD, Terraform, Azure Policy, Azure to run enhanced monitoring, control defects, reconcile operations, confirm SLOs, complete knowledge transfer, and remove temporary access. Project scope for this action: Optimized cloud cost and deployment frequency. Keep inventory, payment, shipment, and refund reconciliation active throughout transfer, validation, and decision-making.
  3. Capture Operational acceptance, Runbook, CMDB, access, and support updates, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires browse-to-checkout completion rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing release or capacity failure interrupts checkout at peak traffic.
Required evidence
  • Operational acceptance
  • Runbook, CMDB, access, and support updates
Applicable tools
ArgoCDTerraformAzure PolicyAzure
Exit gate

On-call staff independently detect, diagnose, restore, escalate, and operate the target against service objectives.

Retire and optimize

3 steps

Decommission safely, remove obsolete access and cost, preserve required records, retest recovery, and measure the migration against its intended benefits.

49
Approve source decommission readinessOwner: Business, data, security, application, finance, and platform owners
Purpose

Confirm retention, audit, reconciliation, rollback expiry, legal hold, dependency removal, contract, user, and operational requirements before retirement.

Project application

Approve source decommission readiness is where the team must remove legacy risk and realize the migration benefit. In the retail and digital commerce context, the work follows the journey from “discover a product and current offer” through warehouse, carrier, notification, and customer-care systems. The protected business boundary is customer baskets, orders, payments, and refunds. The relevant project scope is concrete: Containerized legacy applications with Docker and migrated workloads to AKS. Apply inventory, payment, shipment, and refund reconciliation to address the risk that release or capacity failure interrupts checkout at peak traffic; judge the result using inventory accuracy and fulfilment timeliness.

Step execution flow
  1. 01Readiness inputDiscover a product and current offer with payment, fraud, tax, and address partners
  2. 02Approve source decommission readinessArchive required evidence, decommission source assets safely, remove obsolete connectivity and licenses, retest recovery, right-size, and measure outcomes
  3. 03Control pointProgressive release with business-journey rollback gates
  4. 04EvidenceDecommission approval checklist, Dependency and retention sign-offs using Kubernetes, Docker, Helm
  5. 05Exit decisionNo active user, integration, recovery need, record obligation, or unresolved migration defect requires the source. Confirm refund completion time and customer-impacting error rate.
Detailed activities
  1. Apply this step to the source and destination path for “confirm price, inventory, and delivery promise”. Identify traffic management, cache, database, and messaging layers, fulfilment and shipment events, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Kubernetes, Docker, Helm, Azure to archive required evidence, decommission source assets safely, remove obsolete connectivity and licenses, retest recovery, right-size, and measure outcomes. Project scope for this action: Containerized legacy applications with Docker and migrated workloads to AKS. Keep progressive release with business-journey rollback gates active throughout transfer, validation, and decision-making.
  3. Capture Decommission approval checklist, Dependency and retention sign-offs, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires payment authorization and order durability to support the intended result: improved scalability through pod and cluster autoscaling, without allowing overselling or incorrect pricing during a demand spike.
Required evidence
  • Decommission approval checklist
  • Dependency and retention sign-offs
Applicable tools
KubernetesDockerHelmAzure
Exit gate

No active user, integration, recovery need, record obligation, or unresolved migration defect requires the source.

50
Archive, revoke, and decommission source assetsOwner: Source platform, data, identity, network, security, and asset teams
Purpose

Archive required records and configurations, revoke access and credentials, remove routing and monitoring, cancel licenses, wipe data safely, and dispose of assets.

Project application

At this point, archive, revoke, and decommission source assets must remove legacy risk and realize the migration benefit. The implementation follows “confirm price, inventory, and delivery promise” across traffic management, cache, database, and messaging layers. The protected business boundary is fulfilment and shipment events. Existing project evidence establishes the delivery context: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Apply progressive release with business-journey rollback gates to address the risk that overselling or incorrect pricing during a demand spike; judge the result using refund completion time and customer-impacting error rate.

Step execution flow
  1. 01Readiness inputConfirm price, inventory, and delivery promise with warehouse, carrier, notification, and customer-care systems
  2. 02Archive, revoke, and decommission source assetsArchive required evidence, decommission source assets safely, remove obsolete connectivity and licenses, retest recovery, right-size, and measure outcomes
  3. 03Control pointPeak-load autoscaling and dependency protection
  4. 04EvidenceDecommission execution record, Data disposal, access, and cost evidence using Docker, Helm, ArgoCD
  5. 05Exit decisionSource services cannot receive production traffic, protected data is handled correctly, and obsolete cost and attack surface are removed. Confirm browse-to-checkout completion rate.
Detailed activities
  1. Apply this step to the source and destination path for “create and authorize the order”. Identify product, inventory, and pricing services, customer identity and personal information, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Docker, Helm, ArgoCD, Azure to archive required evidence, decommission source assets safely, remove obsolete connectivity and licenses, retest recovery, right-size, and measure outcomes. Project scope for this action: Designed namespaces, ingress controllers, RBAC, and autoscaling policies. Keep peak-load autoscaling and dependency protection active throughout transfer, validation, and decision-making.
  3. Capture Decommission execution record, Data disposal, access, and cost evidence, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires inventory accuracy and fulfilment timeliness to support the intended result: established version-controlled GitOps releases, without allowing a customer is charged without a durable order or refund state.
Required evidence
  • Decommission execution record
  • Data disposal, access, and cost evidence
Applicable tools
DockerHelmArgoCDAzure
Exit gate

Source services cannot receive production traffic, protected data is handled correctly, and obsolete cost and attack surface are removed.

51
Optimize and close the migrationOwner: Service owner, FinOps, SRE, security, and program leadership
Purpose

Right-size the target, tune scaling and storage, close risks, retest backup and DR, compare cost and service outcomes, document lessons, and update future wave standards.

Project application

The practical purpose of optimize and close the migration is to remove legacy risk and realize the migration benefit. The team traces the change through “create and authorize the order”, including its reliance on product, inventory, and pricing services and its effect on customer identity and personal information. The implementation anchor comes from the project’s recorded scope: Implemented ArgoCD GitOps deployment workflows. Apply peak-load autoscaling and dependency protection to address the risk that a customer is charged without a durable order or refund state; judge the result using browse-to-checkout completion rate.

Step execution flow
  1. 01Readiness inputCreate and authorize the order with traffic management, cache, database, and messaging layers
  2. 02Optimize and close the migrationArchive required evidence, decommission source assets safely, remove obsolete connectivity and licenses, retest recovery, right-size, and measure outcomes
  3. 03Control pointIdempotent order and payment processing
  4. 04EvidenceBenefits and optimization report, DR retest, closure, and improvement roadmap using Terraform, Azure Policy, Azure Monitor
  5. 05Exit decisionThe migration outcome is measurable, supportable, secure, recoverable, cost-owned, and formally accepted. Confirm payment authorization and order durability.
Detailed activities
  1. Apply this step to the source and destination path for “reserve stock and start fulfilment”. Identify payment, fraud, tax, and address partners, catalogue, price, promotion, and inventory state, owners, durations, prerequisites, stop conditions, and the last safe reversal point.
  2. Use Terraform, Azure Policy, Azure Monitor, Azure to archive required evidence, decommission source assets safely, remove obsolete connectivity and licenses, retest recovery, right-size, and measure outcomes. Project scope for this action: Implemented ArgoCD GitOps deployment workflows. Keep idempotent order and payment processing active throughout transfer, validation, and decision-making.
  3. Capture Benefits and optimization report, DR retest, closure, and improvement roadmap, source and target versions, reconciliation results, elapsed time, decision owner, and rollback readiness. Acceptance requires refund completion time and customer-impacting error rate to support the intended result: standardized deployment configuration through reusable Helm charts, without allowing stale cache or delayed events create inconsistent channel behavior.
Required evidence
  • Benefits and optimization report
  • DR retest, closure, and improvement roadmap
Applicable tools
TerraformAzure PolicyAzure MonitorAzure
Exit gate

The migration outcome is measurable, supportable, secure, recoverable, cost-owned, and formally accepted.