docker.yml

name: Build docker image

on:
  push:
    branches:
      # Expected to be <network>/{fix,feature}/<name> where <network> is one of {geth,bsc,polygon,etc.}
      - "*/fix/*"
      - "*/feature/*"
    tags:
      - "[a-z0-9]+-v*"

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push-image:
    runs-on: ubuntu-20.04
    permissions:
      contents: read
      packages: write

    steps:
      - uses: actions/checkout@v3

      - name: Log in to the Container registry
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Generate docker tags/labels from github build context
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          # We tag latest only release of the form <variant>-v<major>.<minor>.<patch>-fh2.1 so "rc/beta" version are not flagged as latest
          # - 2 docker tags: `{geth|bsc|...}-latest` and `{git-tag}`
          tags: |
            type=ref,event=tag,priority=1000
            type=ref,event=branch,priority=1000
            type=match,pattern=^(.*)-v\d+.\d+.\d+-fh,group=1,suffix=-latest-fh2
          flavor: |
            latest=false

      - name: Build and push Docker image
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          # org.opencontainers.image.version will match the tag name
          labels: ${{ steps.meta.outputs.labels }}