dockerhub.yml

name: Push image to Docker Hub

on:
  push:
    tags:
      - "v*.*.*"

jobs:
  build-docker-image:

    runs-on: ubuntu-latest
    timeout-minutes: 30

    outputs:
      version: ${{ steps.setup.outputs.version }}

    steps:
      - uses: actions/checkout@v2

      - name: Set image tag
        id: setup
        run: echo "::set-output name=version::${GITHUB_REF#refs/tags/v}"

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1

      - name: Cache Docker layers
        uses: actions/cache@v2
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-

      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_TOKEN }}

      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v2
        with:
          builder: ${{ steps.buildx.outputs.name }}
          push: true
          tags: |
            materialscloud/${{ github.event.repository.name }}:latest
            materialscloud/${{ github.event.repository.name }}:${{ steps.setup.outputs.version }}
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache

      - name: Image digest
        run: echo ${{ steps.docker_build.outputs.digest }}