EEdukron DevOps Library
Core DevOpsFoundationSubmodule 6 of 10

Infrastructure as Code

Infrastructure as Code provides a concrete platform capability that must be configured, secured, validated, observed, and owned throughout its lifecycle within DevOps Foundations. It is not an isolated definition: its value appears when it supports begin with the business outcome, translate it into an incremental delivery model, automate repeatable controls, observe production behavior, and feed operational learning back into planning.

Practise Infrastructure as Code interview questions

Full explanation

How Infrastructure as Code works in production

Study Infrastructure as Code in the specific context of DevOps Foundations by connecting its mechanism to a production decision. First establish what owns the configuration or state, who or what invokes it, and which dependency must already be available. Then state the requirement, configure the smallest working unit, connect its dependencies, test success and failure, and document operational ownership. Relate the result to the preceding DevOps vs Agile concept and the following Configuration Management concept. The final proof is not that a command completed; it is that the intended behavior, control, and recovery path are observable and repeatable.

01

Purpose: provides a concrete platform capability that must be configured, secured, validated, observed, and owned throughout its lifecycle.

02

Dependency context: connect Infrastructure as Code in DevOps Foundations to the preceding DevOps vs Agile concept and the following Configuration Management concept.

03

Validation: prove intended behavior and a controlled failure path with retained evidence.

04

Production ownership: document who changes, observes, approves, and recovers this capability.

Flow diagram

Infrastructure as Code execution flow

A repeatable sequence for learning, implementing, validating, and operating Infrastructure as Code.

  1. 01
    FrameState the concrete problem Infrastructure as Code must solve in DevOps Foundations.
  2. 02
    InspectRead current configuration, dependencies, identity, state, and operational signals before changing anything.
  3. 03
    ImplementState the requirement, configure the smallest working unit, connect its dependencies, test success and failure, and document operational ownership.
  4. 04
    ValidateTest normal behavior, one realistic failure, and the evidence produced by Infrastructure as Code.
  5. 05
    OperateAssign ownership, monitoring, change control, and recovery guidance for the capability.

Flow diagram

DevOps Foundations module flow

See where Infrastructure as Code fits in the wider DevOps Foundations operating sequence.

  1. 01
    Business needDevOps Foundations stage 1: business need with an auditable result before the next stage begins.
  2. 02
    Plan and designDevOps Foundations stage 2: plan and design with an auditable result before the next stage begins.
  3. 03
    Build and integrateDevOps Foundations stage 3: build and integrate with an auditable result before the next stage begins.
  4. 04
    Release safelyDevOps Foundations stage 4: release safely with an auditable result before the next stage begins.
  5. 05
    Operate and observeDevOps Foundations stage 5: operate and observe with an auditable result before the next stage begins.
  6. 06
    Improve from feedbackDevOps Foundations stage 6: improve from feedback with an auditable result before the next stage begins.

Hands-on practice

Build and prove the behavior

  1. Create a minimal Infrastructure as Code example inside the map an enterprise devops lifecycle lab.
  2. Record the configuration or command, expected result, observed evidence, and one negative test.
  3. Explain how identity, security, monitoring, and rollback apply before treating the exercise as complete.

Production considerations

Common mistakes and control checks

01

Using default configuration without checking limits, identity, network access, lifecycle behavior, monitoring, or failure recovery.

02

Treating Infrastructure as Code as a tool feature instead of a controlled part of the end-to-end DevOps Foundations flow.

03

Keeping only a successful screenshot while discarding the configuration, test conditions, logs, and recovery evidence.

Knowledge check

Confirm that you can explain and apply it

01What problem does Infrastructure as Code solve, how does it work in DevOps Foundations, and what is it commonly confused with?

Define the mechanism and ownership boundary first. Explain that it provides a concrete platform capability that must be configured, secured, validated, observed, and owned throughout its lifecycle, then contrast it with the adjacent responsibilities represented by the preceding DevOps vs Agile concept and the following Configuration Management concept. Close with a concrete validation signal.

02How would you implement and validate Infrastructure as Code for a production workload?

Start from workload constraints and existing state. State the requirement, configure the smallest working unit, connect its dependencies, test success and failure, and document operational ownership. Include identity, dependencies, normal and failure tests, monitoring, and an explicit recovery decision.

03A change involving Infrastructure as Code causes a production symptom. What evidence would you inspect and how would you recover safely?

Establish scope and recent change, inspect the native configuration and event or log evidence, test the dependency boundary, apply the smallest reversible mitigation, verify user impact has recovered, and retain the findings for permanent prevention.