workflow.yaml

name: 'Terraform CI'

on:
  pull_request:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      dist:
        required: true
        description: Distribution type
        default: dev

concurrency: ci

env:
  RG_NAME: weka-ci
  PREFIX: ci
  CLUSTER_NAME: wekacluster
  GET_WEKA_IO_TOKEN: ${{ secrets.GET_WEKA_IO_TOKEN }}
  SUBSCRIPTION_ID: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
  CLIENT_ID: ${{ secrets.CLIENT_ID }}
  TENANT_ID: ${{ secrets.TENANT_ID }}
  CLIENT_SECRET: ${{ secrets.CLIENT_SECRET }}
  INITIAL_CAPACITY: 6
  INITIALIZATION_TIMEOUT: 30
  NEW_CAPACITY: 7
  SCALE_UP_TIMEOUT: 20
  SCALE_DOWN_TIMEOUT: 20

jobs:
  function-app-dist:
    name: Function app code distribution
    runs-on: ubuntu-latest
    env:
      DIST: ${{ github.event_name == 'release' && 'release' || 'dev' }}
    defaults:
      run:
        shell: bash
        working-directory: ./function-app/distribution
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Setup Go
        uses: actions/setup-go@v4
        with:
          go-version: '1.20'
          cache-dependency-path: function-app/code/go.mod

      - name: Install Task
        uses: arduino/setup-task@v1
        with:
          version: 3.x
          repo-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Authenticate to Azure Cloud
        uses: azure/login@v1
        with:
          # see https://github.com/Azure/login#configure-a-service-principal-with-a-secret
          creds: ${{ secrets.RND_AZURE_CREDENTIALS }}

      - name: Run create_and_upload_zip
        if: github.event_name != 'workflow_dispatch'
        run: task create_and_upload_zip DIST=$DIST

      - name: Run create_and_upload_zip (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch'
        run: task create_and_upload_zip DIST=${{ inputs.dist }}

      - name: Commit changes
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          commit_message: 'chore: update function_app_version'
          file_pattern: 'variables.tf'


  weka_deployment:
    name: Test Weka Deployment
    needs: function-app-dist
    runs-on: ubuntu-latest
    if: github.event_name != 'release'
    defaults:
      run:
        working-directory: ./ci/deployment

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - id: auth
        name: Authenticate to Azure Cloud
        uses: azure/login@v1
        with:
          creds: ${{secrets.AZURE_CREDENTIALS}}

      - name: Create Azure resource group
        uses: azure/CLI@v1
        with:
          inlineScript: |
            az group create --name $RG_NAME --location eastus

      - name: Setup Terraform
        uses: hashicorp/setup-terraform@v2
        with:
          terraform_version: 1.5.2

      - name: Terraform Init
        run: terraform init

      - name: Terraform Apply
        run: terraform apply -var="rg_name=$RG_NAME" -var="prefix=$PREFIX" -var="cluster_name=$CLUSTER_NAME" -var="get_weka_io_token=$GET_WEKA_IO_TOKEN" -var="client_id=$CLIENT_ID" -var="tenant_id=$TENANT_ID" -var="client_secret=$CLIENT_SECRET" -var="subscription_id=$SUBSCRIPTION_ID" -var="cluster_size=$INITIAL_CAPACITY" -auto-approve

      - name: Wait for weka cluster
        uses: azure/CLI@v1
        with:
          inlineScript: |
            chmod +x $GITHUB_WORKSPACE/ci/deployment/wait_for_cluster.sh
            $GITHUB_WORKSPACE/ci/deployment/wait_for_cluster.sh $PREFIX $CLUSTER_NAME $RG_NAME $SUBSCRIPTION_ID $INITIAL_CAPACITY $INITIALIZATION_TIMEOUT

      - name: Scale up. Increase cluster capacity by 1
        uses: azure/CLI@v1
        with:
          inlineScript: |
            chmod +x $GITHUB_WORKSPACE/ci/deployment/resize.sh
            $GITHUB_WORKSPACE/ci/deployment/resize.sh $PREFIX $CLUSTER_NAME $RG_NAME $SUBSCRIPTION_ID $NEW_CAPACITY

      - name: Wait for scaled up weka cluster
        uses: azure/CLI@v1
        with:
          inlineScript: |
            chmod +x $GITHUB_WORKSPACE/ci/deployment/wait_for_cluster.sh
            $GITHUB_WORKSPACE/ci/deployment/wait_for_cluster.sh $PREFIX $CLUSTER_NAME $RG_NAME $SUBSCRIPTION_ID $NEW_CAPACITY $SCALE_UP_TIMEOUT

      - name: Scale down. Decrease cluster capacity by 1
        uses: azure/CLI@v1
        with:
          inlineScript: |
            chmod +x $GITHUB_WORKSPACE/ci/deployment/resize.sh
            $GITHUB_WORKSPACE/ci/deployment/resize.sh $PREFIX $CLUSTER_NAME $RG_NAME $SUBSCRIPTION_ID $INITIAL_CAPACITY

      - name: Wait for scaled down weka cluster
        uses: azure/CLI@v1
        with:
          inlineScript: |
            chmod +x $GITHUB_WORKSPACE/ci/deployment/wait_for_cluster.sh
            $GITHUB_WORKSPACE/ci/deployment/wait_for_cluster.sh $PREFIX $CLUSTER_NAME $RG_NAME $SUBSCRIPTION_ID $INITIAL_CAPACITY $SCALE_DOWN_TIMEOUT

      - name: Terraform Destroy
        if: always()
        run: terraform destroy -var="rg_name=$RG_NAME" -var="prefix=$PREFIX" -var="cluster_name=$CLUSTER_NAME" -var="get_weka_io_token=$GET_WEKA_IO_TOKEN" -var="client_id=$CLIENT_ID" -var="tenant_id=$TENANT_ID" -var="client_secret=$CLIENT_SECRET" -var="subscription_id=$SUBSCRIPTION_ID" -var="cluster_size=$INITIAL_CAPACITY" -auto-approve

      - name: Delete Azure resource group
        if: always()
        uses: azure/CLI@v1
        with:
          inlineScript: |
            az group delete --name $RG_NAME --yes

      - name: Logout from Azure Cloud
        if: always()
        uses: azure/CLI@v1
        with:
          inlineScript: |
            az logout
            az cache purge
            az account clear