YAML Update Action

Update values in an existing YAML or JSON File. Push this updated File to an existing branch or create a new branch. Open a PullRequest to a configurable targetBranch. It is also possible to change the file locally without committing the change.

Use Cases

Change a local YAML file without committing the change

With the latest release, the content of your actual file will be updated by default. So, you just need to skip the commit of your change.

name: 'workflow'
on:
  push:
    branches:
      - main

jobs:
  test-update-file:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Update values.yaml
        uses: fjogeleit/yaml-update-action@main
        with:
          valueFile: 'file.yaml'
          propertyPath: 'file.version'
          value: v1.0.1
          commitChange: false

Update Helm Chart after a new Docker Image was build

Update the image version configuration inside of my helm values.yaml after the related GitHub Workflow build and pushed a new version of my Docker Image to the GitHub Package Registry.

env:
  IMAGE_NAME: image

jobs:
  push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Build app image
        run: docker build . --tag image

      - name: Log into registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin

      - name: Push app image
        id: image
        run: |
          IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/$FILES_IMAGE_NAME
          # Strip git ref prefix from version
          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
          # Strip "v" prefix from tag name
          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
          # Use Docker `latest` tag convention
          [ "$VERSION" == "main" ] && VERSION=$(echo ${{ github.sha }} | cut -c1-8)
          echo IMAGE_ID=$IMAGE_ID
          echo VERSION=$VERSION
          docker tag image $IMAGE_ID:$VERSION
          docker push $IMAGE_ID:$VERSION
          echo "::set-output name=version::$VERSION"

      - name: Update Image Version in the related HelmChart values.yaml
        uses: fjogeleit/yaml-update-action@main
        with:
          valueFile: 'deployment/helm/values.yaml'
          propertyPath: 'backend.version'
          value: ${{ steps.image.outputs.version }}
          branch: deployment/${{ steps.image.outputs.version }}
          targetBranch: development
          createPR: true
          message: 'Update Image Version to ${{ steps.image.outputs.version }}' 

Input Arguments

Base Configurations

Methods

Determine the behavior for none existing properties or array elements.

Git related Configurations

Output

• commit Git Commit SHA
• pull_request Git PR Information

Debug Information

Enable Debug mode to get information about

• YAML parse and update results
• Git Steps

Known Issues

In this first version the updated YAML file will not be patched. It is parsed into JSON, after the update its converted back to YAML. This means that comments and blank lines will be removed in this process and the intend of the updated content can be different to the previous.

By default, each value will be interpreted as string. To use other kinds of value types you can use the specified YAML tags as shown here: JS-YAML -Supported YAML types. Use this syntax as string, see the test workflows as example

Examples

Multi Value Changes

jobs:
  test-multiple-value-changes:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: fjogeleit/yaml-update-action@main
        with:
          valueFile: 'deployment/helm/values.yaml'
          branch: deployment/dev
          targetBranch: main
          createPR: 'true'
          description: Test GitHub Action
          message: 'Update All Images' 
          title: 'Version Updates '
          changes: |
            {
              "backend.version": "${{ steps.image.outputs.backend.version }}",
              "frontend.version": "${{ steps.image.outputs.frontend.version }}"
            }

Multi File Changes

jobs:
  test-multiple-file-changes:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: fjogeleit/yaml-update-action@main
        with:
          valueFile: 'deployment/helm/values.yaml'
          branch: deployment/v1.0.1
          targetBranch: main
          createPR: 'true'
          description: Test GitHub Action
          message: 'Update All Images' 
          title: 'Version Updates '
          changes: |
            {
              "__tests__/fixtures/values.dev.yaml": {
                "backend.version": "v1.0.1"
              },
              "__tests__/fixtures/values.stage.yaml": {
                "backend.version": "v1.0.1"
              },
              "__tests__/fixtures/values.prod.yaml": {
                "backend.version": "v1.0.1"
              }
            }

Change a YAML Multifile

Yaml supports multiple documents in a single file separated by ---. To update such a file, start the property path with the index of the document to be changed.

jobs:
  test-multifile-changes:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: fjogeleit/yaml-update-action@main
        with:
          valueFile: 'deployment/helm/values.yaml'
          branch: deployment/v1.0.1
          targetBranch: main
          createPR: 'true'
          description: Test GitHub Action
          message: 'Update Images'
          title: 'Version Updates '
          changes: |
            {
              "__tests__/fixtures/multivalue.yaml": {
                "[0].backend.version": "v1.1.0",
                "[1].containers[1].image": "node:alpine"
              }
            }

Advanced Example with an separate target repository

env:
  IMAGE_NAME: image

jobs:
  push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
            path: main

      - name: Build app image
        run: docker build . --tag image
        working-directory: ./main

      - name: Log into registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin

      - name: Push app image
        id: image
        run: |
          IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/$FILES_IMAGE_NAME
          ....
          echo "::set-output name=version::$VERSION"

      - name: Checkout Target Repository
        uses: actions/checkout@v3
        with:
          repository: owner/target-repository
          path: infrastructure
          token: ${{ secrets.GITHUB_TOKEN }} 

      - name: Update Image Version in the related HelmChart values.yaml
        uses: fjogeleit/yaml-update-action@main
        with:
          valueFile: 'deployment/helm/values.yaml'
          propertyPath: 'backend.version'
          value: ${{ steps.image.outputs.version }}
          repository: owner/target-repository
          branch: deployment/${{ steps.image.outputs.version }}
          targetBranch: development
          createPR: true
          message: 'Update Image Version to ${{ steps.image.outputs.version }}'
          token: ${{ secrets.GITHUB_TOKEN }}
          workDir: infrastructure