# 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:
- group: common-value
  # containerRegistry: 'event.azurecr.io'
  # containerRegistryDockerConnection: 'acr'
  # environment: 'aks.default'
- name: imageRepository
  value: 'oauth'
- name: dockerfilePath
  value: '**/Dockerfile'
- name: tag
  value: '$(Build.BuildId)'
  # Agent VM image name
- name: vmImageName
  value: 'ubuntu-latest'
- name: MAVEN_CACHE_FOLDER
  value: $(Pipeline.Workspace)/.m2/repository
- name: MAVEN_OPTS
  value: '-Dmaven.repo.local=$(MAVEN_CACHE_FOLDER)'

stages:
- stage: Build
  displayName: Build stage
  jobs:
  - job: Build
    displayName: Build
    pool:
      vmImage: $(vmImageName)
    steps:
    - task: CacheBeta@1
      inputs:
        key: 'maven | "$(Agent.OS)" | **/pom.xml'
        restoreKeys: |
           maven | "$(Agent.OS)"
           maven
        path: $(MAVEN_CACHE_FOLDER)
      displayName: Cache Maven local repo
    - task: Maven@3
      inputs:
        mavenPomFile: 'pom.xml'
        options: '-Dmaven.test.skip=true -Dmaven.repo.local=$(MAVEN_CACHE_FOLDER)'
        javaHomeOption: 'JDKVersion'
        jdkVersionOption: '1.8'
        jdkArchitectureOption: 'x64'
        goals: 'package'
    - task: Docker@2
      inputs:
        containerRegistry: $(containerRegistryDockerConnection)
        repository: $(imageRepository)
        command: 'buildAndPush'
        Dockerfile: '**/Dockerfile'
        tags: |
          $(tag)

- stage: Deploy
  displayName: Deploy stage
  dependsOn: Build

  jobs:
  - deployment: Deploy
    displayName: Deploy
    pool:
      vmImage: $(vmImageName)
    environment: $(environment)
    strategy:
      runOnce:
        deploy:
          steps:
          - task: Kubernetes@1
            inputs:
              connectionType: 'Kubernetes Service Connection'
              namespace: 'default'
              command: 'apply'
              useConfigurationFile: true
              configurationType: 'inline'
              inline: |
                apiVersion: apps/v1
                kind: Deployment
                metadata:
                  name: $(imageRepository)
                  labels:
                    app: $(imageRepository)
                spec:
                  replicas: 1
                  selector:
                    matchLabels:
                      app: $(imageRepository)
                  template:
                    metadata:
                      labels:
                        app: $(imageRepository)
                    spec:
                      containers:
                        - name: $(imageRepository)
                          image: $(containerRegistry)/$(imageRepository):$(tag)
                          ports:
                            - containerPort: 8080
              secretType: 'dockerRegistry'
              containerRegistryType: 'Azure Container Registry'
          - task: Kubernetes@1
            inputs:
              connectionType: 'Kubernetes Service Connection'
              namespace: 'default'
              command: 'apply'
              useConfigurationFile: true
              configurationType: 'inline'
              inline: |
                apiVersion: v1
                kind: Service
                metadata:
                  name: $(imageRepository)
                  labels:
                    app: $(imageRepository)
                spec:
                  ports:
                    - port: 8080
                      targetPort: 8080
                  selector:
                    app: $(imageRepository)
              secretType: 'dockerRegistry'
              containerRegistryType: 'Azure Container Registry'