# Builds and pushes the multi-arch MeterVault image on a vX.Y.Z tag (SDD §11).
# Default registry is GHCR; change REGISTRY/IMAGE below (one place) to target the FinalFactory
# registry (e.g. REGISTRY: git.finalfactory.de) and set the matching login secrets.
name: docker-publish

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

env:
  REGISTRY: ghcr.io
  IMAGE: ${{ github.repository }} # ghcr.io/<owner>/metervault

permissions:
  contents: read
  packages: write

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Derive version
        id: ver
        run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3

      - name: Log in to the registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          file: deploy/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE }}:${{ steps.ver.outputs.version }}
            ${{ env.REGISTRY }}/${{ env.IMAGE }}:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max