azure-pipelines-automate-pr-workitems-v1.0.yml

#####################################################
# TRIGGER CONDITION CAN BE ALTERED LIKE BELOW :-
#####################################################
# trigger:
#   branches:
#     include:
#     - feature/*
#   paths:
#     include:
#     - Automate-PR-and-Associate-WorkItems/*
#####################################################


#######################
# TRIGGER CONDITION :-
#######################
trigger: none

########################################################################
#DECLARE VARIABLES:-
# ONLY VARIABLE VALUES NEEDS TO BE ALTERED TO MAKE THE PIPELINE WORK.
########################################################################
variables:
  PlanFilename: tfplan
  TfvarFilename: usrmid.tfvars
  KV-Name: ampockv
  ServiceConnection: amcloud-cicd-service-connection
  ResourceGroup: tfpipeline-rg
  StorageAccount: tfpipelinesa
  Container: terraform
  TfstateFile: PR/createprworkitem.tfstate
  BuildAgent: ubuntu-latest
  PipelineEnv: NonProd
  Terraform_Version: 1.2.3
  WorkingDir: $(System.DefaultWorkingDirectory)/Automate-PR-and-Associate-WorkItems
  Target: $(build.artifactstagingdirectory)/AMTF
  Artifact: AM
  anyTfChanges: false
  DevOpsOrganisation: https://dev.azure.com/ArindamMitra0251
  DevOpsProjName: AMCLOUD
  DevOpsRepoName: PR
  DevOpsDestinationBranch: main
  
######################
#DECLARE BUILD AGENT:-
######################
pool:
  vmImage: $(BuildAgent)

###################
#DECLARE STAGES:-
###################

#################
# STAGE: BUILD
#################

stages:

- stage: BUILD
  jobs:
  - job: BUILD
    displayName: BUILD
    steps:
# Install Terraform Installer in the Build Agent:-
    - task: ms-devlabs.custom-terraform-tasks.custom-terraform-installer-task.TerraformInstaller@0
      displayName: INSTALL LATEST TERRAFORM VERSION
      inputs:
        terraformVersion: '$(Terraform_Version)'
# Terraform Init:-
    - task: TerraformTaskV2@2
      displayName: TERRAFORM INIT
      inputs:
        command: 'init'
        provider: 'azurerm'
        workingDirectory: '$(WorkingDir)'
        backendServiceArm: '$(ServiceConnection)' 
        backendAzureRmResourceGroupName: '$(ResourceGroup)' 
        backendAzureRmStorageAccountName: '$(StorageAccount)'
        backendAzureRmContainerName: '$(Container)'
        backendAzureRmKey: '$(TfstateFile)'
# Terraform Validate:-
    - task: TerraformTaskV2@2
      displayName: TERRAFORM VALIDATE
      inputs:
        command: 'validate'
        provider: 'azurerm'
        workingDirectory: '$(WorkingDir)'
        environmentServiceNameAzureRM: '$(ServiceConnection)'
# Terraform Plan:-
    - task: TerraformTaskV2@2
      displayName: TERRAFORM PLAN
      inputs:
        command: 'plan'
        provider: 'azurerm'
        workingDirectory: '$(WorkingDir)'
        commandOptions: '--var-file=$(TfvarFilename) --out=$(PlanFilename)'
        environmentServiceNameAzureRM: '$(ServiceConnection)'
# Detect Terraform Changes:-
    - task: PowerShell@2
      name: DetectTFChanges
      displayName: DETECT TERRAFORM CHANGES
      inputs:
        workingDirectory: '$(workingDir)'
        targetType: 'inline'
        script: |
          Write-Host "#######################################################"
          Write-Host "Intial value of variable: $(anyTfChanges)"
          Write-Host "#######################################################"
          $plan = $(terraform show -json tfplan | ConvertFrom-Json)
          $count = $plan.resource_changes.change.actions.length
          $actions = ($plan.resource_changes | where { 'no-op' -notcontains $_.change.actions }).length -ne 0
          Write-Host "##vso[task.setvariable variable=anyTfChanges;isOutput=true]$actions"
          Write-Host "#######################################################"
          Write-Host "Are there Changes in Infrastruture: $actions"
          Write-Host "#######################################################"
          Write-Host "TOTAL NO OF CHANGES: $count"
          Write-Host "#######################################################"
# Copy Files to Artifacts Staging Directory:-
    - task: CopyFiles@2
      displayName: COPY FILES ARTIFACTS STAGING DIRECTORY
      inputs:
        SourceFolder: '$(WorkingDir)'
        Contents: |
          **/*.tf
          **/*.tfvars
          **/*$(PlanFilename)*
        TargetFolder: '$(Target)'
# Publish Artifacts:-
    - task: PublishBuildArtifacts@1
      displayName: PUBLISH ARTIFACTS
      inputs:
        targetPath: '$(Target)'
        artifactName: '$(Artifact)'

#################
# STAGE: DEPLOY
#################

- stage: DEPLOY
  condition: |
     and(succeeded(),
       ne(variables['Build.SourceBranch'], 'refs/heads/main'),
       eq(dependencies.BUILD.outputs['build.DetectTFChanges.anyTfChanges'], 'true')
     )
  jobs:
  - deployment: 
    displayName: Deploy
    environment: '$(PipelineEnv)'
    pool:
      vmImage: '$(BuildAgent)'
    strategy:
      runOnce:
        deploy:
          steps:
# Download Artifacts:-
          - task: DownloadBuildArtifacts@0
            displayName: DOWNLOAD ARTIFACTS
            inputs:
              buildType: 'current'
              downloadType: 'single'
              artifactName: '$(Artifact)'
              downloadPath: '$(System.ArtifactsDirectory)' 
# Install Terraform Installer in the Build Agent:-
          - task: ms-devlabs.custom-terraform-tasks.custom-terraform-installer-task.TerraformInstaller@0
            displayName: INSTALL LATEST TERRAFORM VERSION
            inputs:
              terraformVersion: '$(Terraform_Version)'
# Terraform Init:-
          - task: TerraformTaskV2@2
            displayName: TERRAFORM INIT
            inputs:
              provider: 'azurerm'
              command: 'init'
              workingDirectory: '$(System.ArtifactsDirectory)/$(Artifact)/AMTF/'
              backendServiceArm: '$(ServiceConnection)' 
              backendAzureRmResourceGroupName: '$(ResourceGroup)' 
              backendAzureRmStorageAccountName: '$(StorageAccount)'
              backendAzureRmContainerName: '$(Container)'
              backendAzureRmKey: '$(TfstateFile)'
# Terraform Apply:-
          - task: TerraformTaskV2@2
            displayName: TERRAFORM APPLY
            inputs:
              provider: 'azurerm'
              command: 'apply'
              workingDirectory: '$(System.ArtifactsDirectory)/$(Artifact)/AMTF'
              commandOptions: '--var-file=$(TfvarFilename)'
              environmentServiceNameAzureRM: '$(ServiceConnection)'

##################################################################################################
# STAGE: CREATE PR
# CREATE AND COMPLETE PULL REQUEST BY ASSOCIATING WORKITEMS AND DELETING SOURCE BRANCH
#################################################################################################

- stage: PULL_REQUEST_ASSOCIATE_WORKITEMS
  condition: |
     and(succeeded(), 
       ne(variables['Build.SourceBranch'], 'refs/heads/main') 
     )
  dependsOn: DEPLOY
  jobs:
  - job: PULL_REQUEST_WORKITEMS
    displayName: CREATE PR | ASSOCIATE WORKITEMS | COMPLETE
    steps:
# Download Keyvault Secrets:-
    - task: AzureKeyVault@2
      inputs:
        azureSubscription: '$(ServiceConnection)'
        KeyVaultName: '$(KV-Name)'
        SecretsFilter: '*'
        RunAsPreJob: false
# Install Az DevOps CLI Extension in the Build Agent:-
    - task: AzureCLI@1
      displayName: INSTALL DEVOPS CLI EXTENSION
      inputs:
        azureSubscription: '$(ServiceConnection)'
        scriptType: ps
        scriptLocation: inlineScript
        inlineScript: |
          az extension add --name azure-devops
          az extension show --name azure-devops --output table
# Validate Az DevOps CLI Extension in the Build Agent:-
    - task: PowerShell@2
      displayName: VALIDATE AZ DEVOPS CLI
      inputs:
        targetType: 'inline'
        script: |
          az devops -h
# Set Default DevOps Organization and Project:-
    - task: PowerShell@2
      displayName: DEVOPS LOGIN + SET DEFAULT DEVOPS ORG & PROJECT
      inputs:
        targetType: 'inline'
        script: |
         echo "$(PAT)" | az devops login  
         az devops configure --defaults organization=$(DevOpsOrganisation) project=$(DevOpsProjName)
# Create Workitem + Create PR + Associate Workitem with PR + Complete the PR + Delete Source Branch:-
    - task: PowerShell@2
      displayName: CREATE & COMPLETE PULL REQUEST + WORKITEMS + DELETE SOURCE BRANCH
      inputs:
        targetType: 'inline'
        script: |
          Write-Host "#######################################################"
          Write-Host "NAME OF THE SOURCE BRANCH: $(Build.SourceBranchName)"
          Write-Host "#######################################################"
          $i="PR-"
          $j=Get-Random -Maximum 1000
          Write-Host "###################################################"
          Write-Host "WORKITEM NUMBER GENERATED IN DEVOPS BOARD: $i$j"
          Write-Host "###################################################"
          $wid = az boards work-item create --title $i$j --type "Issue" --query "id"
          Write-Host "#######################################################" 
          Write-Host "WORKITEM ID is: $wid"
          Write-Host "#######################################################"
          $prid = az repos pr create --repository $(DevOpsRepoName) --source-branch $(Build.SourceBranchName) --target-branch $(DevOpsDestinationBranch) --work-items $wid --transition-work-items true --query "pullRequestId"
          Write-Host "#######################################################"
          Write-Host "PULL REQUEST ID is: $prid"
          Write-Host "#######################################################"
          Write-Host "##### TO BE MERGED FROM $(Build.SourceBranchName) TO Main #####"
          az repos pr update --id $prid --auto-complete true --squash true --status completed --delete-source-branch true
          Write-Host "##### MERGE SUCCESSFULL #####"