docker.yml

# Builds the Docker image and publishes it to GitHub Container Registry (ghcr.io/<owner>/basiccable) for amd64
# and arm64, after the tests pass.
#
#   push to main       -> :latest and :<short sha>
#   tag v1.2.3         -> :1.2.3 and :1.2
#
# Trivy gates the push like the Forgejo pipeline: a CRITICAL vulnerability with a known fix stops the job before
# anything is published. A new package on GHCR starts out private; make it public once in its package settings.

name: Docker image

on:
  push:
    branches: [main]
    tags: ['v*']
  workflow_dispatch: {}

jobs:
  test:
    uses: ./.github/workflows/test.yml

  publish:
    needs: test
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - uses: actions/checkout@v4

      - name: Image name and build date
        id: vars
        run: |
          # GHCR names must be lower case; the owner here is "TitleOS".
          echo "image=ghcr.io/${GITHUB_REPOSITORY_OWNER,,}/basiccable" >> "$GITHUB_OUTPUT"
          # Rebuilds the image's Debian security upgrade layer at least daily (see the Dockerfile).
          echo "apt_day=$(date -u +%F)" >> "$GITHUB_OUTPUT"

      - id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ steps.vars.outputs.image }}
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=sha,prefix=,format=short,enable={{is_default_branch}}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
          labels: |
            org.opencontainers.image.title=Basic Cable
            org.opencontainers.image.description=Virtual live TV channels for Stremio, streamed through your debrid addons

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

      # amd64 first, loaded locally so Trivy can scan it before anything is pushed.
      - name: Build for scanning
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64
          build-args: APT_DAY=${{ steps.vars.outputs.apt_day }}
          load: true
          tags: basiccable:scan
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Scan with Trivy
        run: |
          docker run --rm -v /var/run/docker.sock:/var/run/docker.sock \
            aquasec/trivy:0.75.0 image --severity CRITICAL --ignore-unfixed --exit-code 1 basiccable:scan

      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Both platforms; amd64 comes from the cache of the build above.
      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          build-args: APT_DAY=${{ steps.vars.outputs.apt_day }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max