kubernetes-agent-publish-chart.yaml

name: Publish Kubernetes Agent chart

on:
  push:
    branches:
    - main
    - release/kubernetes-agent/v*

  pull_request:

jobs:
  paths_filter:
    runs-on: ubuntu-latest
    outputs:
      result: ${{ steps.filter.outputs.kubernetes-agent }}
    
    steps:
      - uses: actions/checkout@v4
      
      - uses: dorny/paths-filter@v3
        id: filter
        with:
          filters: |
            kubernetes-agent:
              - charts/kubernetes-agent/**
              - .github/workflows/kubernetes-agent-publish-chart.yaml

  test:
    needs: paths_filter
    if: needs.paths_filter.outputs.result == 'true'
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4

    - name: Install Helm
      uses: azure/setup-helm@v3
      with:
        version: v3.13.2

    - name: Run Helm unit tests
      run: |
        helm plugin install https://github.com/helm-unittest/helm-unittest.git
        helm unittest charts/kubernetes-agent

  check-readme:
    needs: paths_filter
    if: needs.paths_filter.outputs.result == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v4
      - name: Generate docs
        working-directory: charts/kubernetes-agent
        run: "npm run generate-agent-docs"
      - name: Check readme is unchanged
        run: |
          echo "Ensuring readme is up-to-date"
          echo "If this test fails, run 'npm run generate-agent-docs' locally and commit the changes"
          git diff --ignore-cr-at-eol -w --exit-code

  version_and_package:
    needs: test
    runs-on: ubuntu-latest
    outputs:
      CHART_VERSION: ${{ steps.version.outputs.CHART_VERSION  }}
      PACKAGE_NAME: ${{ steps.version.outputs.PACKAGE_NAME }}

    steps:
    - uses: actions/checkout@v4

    - name: Install Helm
      uses: azure/setup-helm@v3
      with:
        version: 'v3.13.2'

    - name: Parse Chart config
      uses: pietrobolcato/action-read-yaml@1.1.0
      id: read_chart_yaml
      with:
        config: ${{ github.workspace }}/charts/kubernetes-agent/Chart.yaml

    - name: Get branch names
      id: branch_names
      uses: OctopusDeploy/util-actions/current-branch-name@current-branch-name.0.1.0

    - name: Generate chart version
      id: version
      shell: bash
      run: |
        chart_version="${{ steps.read_chart_yaml.outputs.version }}"
        pre_release=""

        if [[ "${{steps.branch_names.outputs.branch_name}}" != "main" ]]
        then
            # underscores in branches make for illegal version-string, replace with "-"
            cleansed_branch=`echo ${{steps.branch_names.outputs.branch_name}} | sed s/_/-/g`
            pre_release="-${cleansed_branch}-$(date +'%Y%m%d%H%M%S')"
        fi

        full_version="$chart_version$pre_release"

        echo "CHART_VERSION=$full_version" >> $GITHUB_OUTPUT
        echo "PACKAGE_NAME=kubernetes-agent-$full_version.tgz" >> $GITHUB_OUTPUT

    - name: Package Chart
      run: helm package './charts/kubernetes-agent' --version '${{ steps.version.outputs.CHART_VERSION }}'

    - uses: actions/upload-artifact@v3
      name: Upload packaged chart
      with:
        name: '${{ steps.version.outputs.PACKAGE_NAME }}'
        path: '${{ github.workspace }}/kubernetes-agent-${{ steps.version.outputs.CHART_VERSION }}.tgz'

  publish_to_octopus:
    runs-on: ubuntu-latest
    # We publish to Artifactory if this is not a main commit, or if it is, that it's a versioning commit
    if: ${{ github.ref != 'refs/heads/main' || (github.ref == 'refs/heads/main' && startsWith(github.event.commits[0].message, 'Version Charts')) }}
    needs: version_and_package
    permissions:
      # You might need to add other permissions here like `contents: read` depending on what else your job needs to do
      id-token: write # This is required to obtain an ID token from GitHub Actions for the job
    steps:
    - name: Download packaged chart
      uses: actions/download-artifact@v3
      with:
        name: '${{ needs.version_and_package.outputs.PACKAGE_NAME }}'

    - name: Login to Octopus
      uses: OctopusDeploy/login@v1
      with:
        server: ${{ vars.OCTOPUS_SERVER }}
        service_account_id: ${{ secrets.OCTOPUS_SERVICE_ACCOUNT }}

    - name: Push helm chart to Octopus Deploy 🐙
      uses: OctopusDeploy/push-package-action@v3
      with:
        space: 'Modern Deployments'
        packages: ${{ needs.version_and_package.outputs.PACKAGE_NAME }}
        overwrite_mode: IgnoreIfExists

    - name: Create a release in Octopus Deploy 🐙
      uses: OctopusDeploy/create-release-action@v3
      with:
        space: 'Modern Deployments'
        project: 'Octopus Kubernetes Agent'
        release_number: ${{ needs.version_and_package.outputs.CHART_VERSION }}
        package_version: ${{ needs.version_and_package.outputs.CHART_VERSION }}
        ignore_existing: true