docker.yml

name: Create Docker Images

on:
  push:
    branches:
      - "main"
    tags:
      - "v*.*.*"

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
          
      - name: Set env
        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set outputs
        id: vars
        run: |
          echo "date=$(date +%s)" >> "${GITHUB_OUTPUT}"
          echo "sha_short=$(git rev-parse --short HEAD)" >> "${GITHUB_OUTPUT}"

      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v3
        with:
          context: .
          platforms: linux/amd64
          cache-from: type=gha
          cache-to: type=gha,mode=max
          # Only push if on main branch or version tag
          push: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v')) }}
          tags: |
            ghcr.io/marigold-dev/tzproxy:latest
            ghcr.io/marigold-dev/tzproxy:latest-${{ steps.vars.outputs.sha_short }}-${{ steps.vars.outputs.date }}
            ghcr.io/marigold-dev/tzproxy:${{env.RELEASE_VERSION}}