update-runtime-versions.yaml

# If you're a new Astro user, discard this workflow.
name: Astronomer Maintenance CI - Update Astro Runtime Version

on:
  workflow_dispatch: # Manual trigger
  schedule:
    - cron: "0 16 * * *" # Once a day at noon ET

env:
  ENABLE_RUNTIME_AUTO_UPDATES: false

jobs:
  update-runtime-version:
    # Only run this job if the repository is the original example-dags repository on main branch
    # so we don't accidentally update the runtime version in forks / template repositories
    if: github.repository == 'astronomer/templates'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}

      - name: Get latest Astronomer Runtime version
        id: get_latest_runtime
        run: |
          # Fetch the latest runtime version from updates.astronomer.io
          response=$(curl -s https://updates.astronomer.io/astronomer-runtime)
          # Extract the latest runtime version using jq
          latest_version=$(echo $response | jq -r '.runtimeVersions | keys | sort_by(. | split(".") | map(tonumber)) | last')
          # Set the latest runtime version as an output
          echo "LATEST_RUNTIME=$latest_version" >> $GITHUB_ENV
      - name: Update Dockerfiles with latest runtime version
        run: |
          latest_runtime=$LATEST_RUNTIME
          export latest_runtime
          find . -maxdepth 1 -type d ! -path . -exec sh -c '
              for dir; do
              if [ -f "$dir/Dockerfile" ]; then
                  sed -i "s|FROM quay.io/astronomer/astro-runtime:.*|FROM quay.io/astronomer/astro-runtime:$latest_runtime|" "$dir/Dockerfile"
              fi
              done
          ' sh {} +
      - name: Commit changes
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: "Update Astro Runtime to ${{ ENV.LATEST_RUNTIME }}"
          push_options: --force