Template Validation: Errors in Referenced Template Files

Problem/Feature Description

A DevOps engineer has set up a modular Azure Pipelines configuration with a main entry point that delegates build and deploy stages to YAML templates. The main file passes validation on its own, but the pipeline fails at queue time with errors in the template files. The engineer realizes they only validated the entry point.

Validate both the main pipeline file and the referenced template below. Identify all errors in the template files (not just the entry point), explain why validating only the entry point is insufficient, and produce corrected versions of all files.

Output Specification

Produce:

• A corrected azure-pipelines.yml (main entry point)
• A corrected templates/build-stage.yml
• A template-validation-report.md that: (1) lists all errors found across all files, (2) notes which file each error is in, and (3) explains why the entry-point-only validation approach would have missed these issues

Input Files

The following files are provided as input.

=============== FILE: inputs/azure-pipelines.yml =============== trigger: branches: include: - main

pool: vmImage: ubuntu-latest

stages:

• template: templates/build-stage.yml parameters: nodeVersion: '18.x' runTests: true

• stage: Deploy dependsOn: Build jobs:

  • job: DeployJob displayName: 'Deploy to production' steps:
    • script: echo "Deploying..." displayName: 'Run deploy script'

=============== FILE: inputs/templates/build-stage.yml =============== parameters:

• name: nodeVersion type: string
• name: runTests type: boolean default: false

stages:

• stage: Build jobs:
  • job: BuildJob steps:
    • task: NodeTool@0 inputs: versionSpec: ${{ parameters.nodeVersion }}
    • script: npm ci
    • script: npm run build
    • ${{ if eq(parameters.runTests, true) }}:
      • script: npm test displayName: 'Run tests'
    • task: PublishBuildArtifacts inputs: pathToPublish: 'dist' artifactName: 'drop'