image.yml

---
name: build-image

on:
  push:
jobs:
  build:
    runs-on: ubuntu-latest
    env:
      GH_REPO: c3genomics/ncov-tools
    steps:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build on all branch
        id: alpha
        uses: docker/build-push-action@v2
        with:
          push: true
          tags: ${{ env.GH_REPO }}:alpha
          cache-from: type=registry,ref=${{ env.GH_REPO }}:alpha
          cache-to: type=inline
      -
        name: Docker meta
        id: docker_meta
        uses: crazy-max/ghaction-docker-meta@v1
        with:
          images: ${{ env.GH_REPO }} # list of Docker images to use as base name for tags
          tag-sha: true # add git short SHA as Docker tag
      - name: push latest
        if: ${{ github.ref == 'ref/head/master' }}
        id: latest
        uses: docker/build-push-action@v2
        with:
          push: true
          tags: ${{ env.GH_REPO }}:latest
          cache-from: type=registry,ref=${{ env.GH_REPO }}:alpha
          cache-to: type=inline
      - name: push tag
        if: contains(github.ref, 'tags/v')
        id: tag
        uses: docker/build-push-action@v2
        with:
          push: true
          cache-from: type=registry,ref=${{ env.GH_REPO }}:alpha
          cache-to: type=inline
          tags: ${{ steps.docker_meta.outputs.tags }}
          labels: ${{ steps.docker_meta.outputs.labels }}