Validate, Test, and Review Infrastructure Code

What you will be able to do

• Distinguish formatting check from static validation in a realistic validate, test, and review infrastructure code case.
• Interpret the delivery evidence and boundary associated with plan inspection.
• Choose an appropriate action involving automated assertion without exceeding the named operational scope.
• Verify peer approval through an observable service result and reproducible handoff.

01

Frame Validate, Test, and Review Infrastructure Code

Validate infrastructure code with formatting, static validation, plan inspection, automated assertions, and peer review before any privileged apply.

A module change adds an optional backup bucket. The team needs fast checks that catch syntax, invalid references, unexpected resources, and a broken output contract.

Keep the delivery target, declared intent, execution evidence, reliability boundary, and recovery choice separate. Start with observable state and preserve enough context for another operator to reproduce the decision.

02

Formatting check

Formatting gives OpenTofu source a consistent machine-defined style for easier review. Within validate, test, and review infrastructure code, this role answers a separate delivery or reliability question and keeps its own evidence.

Run the formatting check across the changed module. Apply that action to the named service case before widening the rollout, infrastructure scope, or incident response.

Respect this boundary: do not confuse formatting success with semantic correctness. The observable result is specific: the committed files match the standard format.

03

Static validation

Validation checks whether a configuration is syntactically and internally valid for its initialized context. Within validate, test, and review infrastructure code, this role answers a separate delivery or reliability question and keeps its own evidence.

Initialize dependencies and run validation before planning. Apply that action to the named service case before widening the rollout, infrastructure scope, or incident response.

Respect this boundary: do not expect validation to prove remote permissions or runtime behavior. The observable result is specific: the module passes static configuration validation.

04

Plan inspection

Plan inspection exposes resource actions and important attribute changes before mutation. Within validate, test, and review infrastructure code, this role answers a separate delivery or reliability question and keeps its own evidence.

Review the plan for the optional bucket and unrelated actions. Apply that action to the named service case before widening the rollout, infrastructure scope, or incident response.

Respect this boundary: do not approve an unexplained replacement because validation passed. The observable result is specific: the plan contains only the intended conditional bucket change.

05

Automated assertion

OpenTofu tests can run configurations and evaluate assertions about resulting values or resources. Within validate, test, and review infrastructure code, this role answers a separate delivery or reliability question and keeps its own evidence.

Assert that enabling backup publishes the expected bucket output. Apply that action to the named service case before widening the rollout, infrastructure scope, or incident response.

Respect this boundary: do not run destructive real-provider tests without isolated ownership. The observable result is specific: the test proves both enabled and disabled module behavior.

06

Peer approval

Peer review checks intent, scope, policy, and evidence before privileged execution. Within validate, test, and review infrastructure code, this role answers a separate delivery or reliability question and keeps its own evidence.

Present the source diff, plan, and assertion results together. Apply that action to the named service case before widening the rollout, infrastructure scope, or incident response.

Respect this boundary: do not approve a plan detached from the reviewed revision. The observable result is specific: the exact revision receives a documented apply decision.

07

Apply Validate, Test, and Review Infrastructure Code to One Service Change

Use one bounded delivery decision: A module change adds an optional backup bucket. The team needs fast checks that catch syntax, invalid references, unexpected resources, and a broken output contract.

First, run the formatting check across the changed module. Then, initialize dependencies and run validation before planning. Keep both observations attached to the exact revision, environment, or service window.

Next, review the plan for the optional bucket and unrelated actions. After that, assert that enabling backup publishes the expected bucket output. Close the work only after you present the source diff, plan, and assertion results together.

08

Recap Before Practice and Prove

Formatting check: Formatting gives OpenTofu source a consistent machine-defined style for easier review. In this service case, run the formatting check across the changed module. Preserve the boundary: do not confuse formatting success with semantic correctness.

Static validation: Validation checks whether a configuration is syntactically and internally valid for its initialized context. In this service case, initialize dependencies and run validation before planning. Preserve the boundary: do not expect validation to prove remote permissions or runtime behavior.

Plan inspection: Plan inspection exposes resource actions and important attribute changes before mutation. In this service case, review the plan for the optional bucket and unrelated actions. Preserve the boundary: do not approve an unexplained replacement because validation passed.

Automated assertion: OpenTofu tests can run configurations and evaluate assertions about resulting values or resources. In this service case, assert that enabling backup publishes the expected bucket output. Preserve the boundary: do not run destructive real-provider tests without isolated ownership.

Peer approval: Peer review checks intent, scope, policy, and evidence before privileged execution. In this service case, present the source diff, plan, and assertion results together. Preserve the boundary: do not approve a plan detached from the reviewed revision.