docker.yml

# Builds the Probyte images (the app, which is also the calendar server, and the document converter) and pushes them to Docker Hub when a release is tagged (git tag v0.2.0 && git push --tags),
# or by hand from the Actions tab. Needs two repository secrets: DOCKERHUB_USERNAME and DOCKERHUB_TOKEN
# (a Docker Hub access token with read & write access: hub.docker.com → Account settings → Personal access tokens).
name: Docker images

on:
  push:
    tags: ["v*"]
  workflow_dispatch:

permissions:
  contents: read

jobs:
  images:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          - image: probyte
            context: .
          - image: probyte-office
            context: ./office
    steps:
      - id: check
        env:
          TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
        run: |
          if [ -z "$TOKEN" ]; then
            echo "::notice::DOCKERHUB_USERNAME / DOCKERHUB_TOKEN secrets aren't set: nothing is pushed (see the comment at the top of this workflow)."
            echo "ok=false" >> "$GITHUB_OUTPUT"
          else
            echo "ok=true" >> "$GITHUB_OUTPUT"
          fi
      - uses: actions/checkout@v4
        if: steps.check.outputs.ok == 'true'
      - uses: docker/setup-buildx-action@v3
        if: steps.check.outputs.ok == 'true'
      - uses: docker/login-action@v3
        if: steps.check.outputs.ok == 'true'
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - id: meta
        if: steps.check.outputs.ok == 'true'
        uses: docker/metadata-action@v5
        with:
          images: ${{ secrets.DOCKERHUB_USERNAME }}/${{ matrix.image }}
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
            type=sha,prefix=sha-
      - uses: docker/build-push-action@v6
        if: steps.check.outputs.ok == 'true'
        with:
          context: ${{ matrix.context }}
          platforms: linux/amd64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: VERSION=${{ steps.meta.outputs.version }}
          cache-from: type=gha,scope=${{ matrix.image }}
          cache-to: type=gha,mode=max,scope=${{ matrix.image }}