azure-pipelines.yml

# Deploy to Azure Kubernetes Service
# Build and push image to Azure Container Registry; Deploy to Azure Kubernetes Service
# https://docs.microsoft.com/azure/devops/pipelines/languages/docker

trigger:
- master

resources:
- repo: self

variables:

  # Container registry service connection established during pipeline creation
  dockerRegistryServiceConnection: 'c27b38ad-c763-4a21-b731-45b9cfd1bbaf'
  imageRepository: 'guchub'
  containerRegistry: 'reviewappregistery.azurecr.io'
  dockerfilePath: '**/Dockerfile'
  tag: '$(Build.BuildId)'
  imagePullSecret: 'reviewappregistery3eac-auth'

  # Agent VM image name
  vmImageName: 'ubuntu-latest'
  
  # Name of the new namespace being created to deploy the PR changes.
  k8sNamespaceForPR: 'review-app-$(System.PullRequest.PullRequestId)'

stages:
- stage: Build
  displayName: Build stage
  jobs:  
  - job: Build
    displayName: Build
    pool:
      vmImage: $(vmImageName)
    steps:
    - task: Docker@2
      displayName: Build and push an image to container registry
      inputs:
        command: buildAndPush
        repository: $(imageRepository)
        dockerfile: $(dockerfilePath)
        containerRegistry: $(dockerRegistryServiceConnection)
        tags: |
          $(tag)
          
    - upload: manifests
      artifact: manifests

- stage: Deploy
  displayName: Deploy stage
  dependsOn: Build

  jobs:
  - deployment: Deploy
    condition: and(succeeded(), not(startsWith(variables['Build.SourceBranch'], 'refs/pull/')))
    variables:
    - name: app-id
      value: $(tag)
    displayName: Deploy
    pool:
      vmImage: $(vmImageName)
    environment: 'ahmedlhanafyguchub.ingress-basic'
    strategy:
      runOnce:
        deploy:
          steps:
          - task: qetza.replacetokens.replacetokens-task.replacetokens@3
            displayName: Replace tokens in **/*
            inputs:
              rootDirectory: $(Pipeline.Workspace)/
              targetFiles: '**/*.yml'
              keepToken: true
              tokenPrefix: __
              tokenSuffix: __
          - task: KubernetesManifest@0
            displayName: Create imagePullSecret
            inputs:
              action: createSecret
              secretName: $(imagePullSecret)
              dockerRegistryEndpoint: $(dockerRegistryServiceConnection)
              
          - task: KubernetesManifest@0
            displayName: Deploy to Kubernetes cluster
            inputs:
              action: deploy
              manifests: |
                $(Pipeline.Workspace)/manifests/deployment.yml
                $(Pipeline.Workspace)/manifests/service.yml
                $(Pipeline.Workspace)/manifests/ingress.yml
              imagePullSecrets: |
                $(imagePullSecret)
              containers: |
                $(containerRegistry)/$(imageRepository):$(tag)

  - deployment: DeployPullRequest
    displayName: Deploy Pull request
    condition: and(succeeded(), startsWith(variables['Build.SourceBranch'], 'refs/pull/'))
    variables:
    - name: app-id
      value: $(tag)
    pool:
      vmImage: $(vmImageName)
    environment: 'ahmedlhanafyguchub.ingress-basic'
    strategy:
      runOnce:
        deploy:
          steps:
          - task: qetza.replacetokens.replacetokens-task.replacetokens@3
            displayName: Replace tokens in **/*
            inputs:
              rootDirectory: $(Pipeline.Workspace)/
              targetFiles: '**/*.yml'
              keepToken: true
              tokenPrefix: __
              tokenSuffix: __
          - task: KubernetesManifest@0
            displayName: Create imagePullSecret
            inputs:
              action: createSecret
              secretName: $(imagePullSecret)
              dockerRegistryEndpoint: $(dockerRegistryServiceConnection)
              
          - task: KubernetesManifest@0
            displayName: Deploy to Kubernetes cluster
            inputs:
              action: deploy
              manifests: |
                $(Pipeline.Workspace)/manifests/deployment.yml
                $(Pipeline.Workspace)/manifests/service.yml
                $(Pipeline.Workspace)/manifests/ingress.yml
              imagePullSecrets: |
                $(imagePullSecret)
              containers: |
                $(containerRegistry)/$(imageRepository):15
         
          # Getting the IP of the deployed service and writing it to a variable for posing comment
          - script: |
              url="https://guchub-$(tag).ahmedlhanafy.com"
              message="Your review app has been deployed"
              if [ ! -z "$url" -a "$url" != "http://:" ] 
              then
                message="${message} and is available at $url.<br><br>[Learn More](https://aka.ms/testwithreviewapps) about how to test and provide feedback for the app."
              fi
              echo "##vso[task.setvariable variable=GITHUB_COMMENT]$message"