ci.yml

concurrency: ci-${{ github.ref }}

name: Docker build

on:
  push:
  workflow_dispatch:
  schedule:
    - cron: "00 8 * * 1"

jobs:
  lint:
    name: Code lint
    runs-on: ubuntu-latest
    timeout-minutes: 15
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      - name: Set up Go environment
        uses: actions/setup-go@v5
        with:
          go-version: 1.22
      - name: golangci-lint
        uses: golangci/golangci-lint-action@v6
        with:
          version: latest
          working-directory: src/
          args: --issues-exit-code=0

  build:
    name: Build image
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          driver-opts: image=moby/buildkit:master
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: tails-infrastructure-bot
          password: ${{ secrets.GHCR_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/tailsdotcom/${{ github.event.repository.name }}
          flavor: |
            latest=false
          tags: |
            type=sha,format=long,prefix=
            type=ref,event=tag,priority=1400
      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          cache-from: type=gha
          context: ${{ github.workspace }}/
          file: ${{ github.workspace }}/Dockerfile
          labels: ${{ steps.meta.outputs.labels }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}

  push:
    name: Push stable version
    runs-on: ubuntu-latest
    timeout-minutes: 10
    if: ${{ github.ref_name == 'main' }}
    needs:
      - lint
      - build
    steps:
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: tails-infrastructure-bot
          password: ${{ secrets.GHCR_TOKEN }}
      - name: Get stable tag
        id: tag
        run: |
          echo "tag=stable-${{ github.sha }}-$(date +%s)" >> "$GITHUB_OUTPUT"
      - name: Pull dev image
        run: docker pull ghcr.io/tailsdotcom/${{ github.event.repository.name }}:${{ github.sha }}
      - name: Docker retag
        run: docker tag ghcr.io/tailsdotcom/${{ github.event.repository.name }}:${{ github.sha }} ghcr.io/tailsdotcom/${{ github.event.repository.name }}:${{ steps.tag.outputs.tag }}
      - name: Docker push
        run: docker push ghcr.io/tailsdotcom/${{ github.event.repository.name }}:${{ steps.tag.outputs.tag }}