publish-docker-release.yml

name: Publish Docker image for new releases

on:
  release:
    types:
      - published

jobs:
  main:
    name: Push to Dockerhub
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Download encointer-collator from release
        uses: dsaltares/fetch-gh-release-asset@master
        with:
          version: "tags/${{ github.event.release.tag_name }}"
          file: "encointer-collator"
          target: "encointer-collator"
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Cache Docker layers
        uses: actions/cache@v3
        with:
         path: /tmp/.buildx-cache
         key: ${{ runner.os }}-buildx-${{ github.sha }}
         restore-keys: |
           ${{ runner.os }}-buildx-

      - name: Login to Dockerhub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}

      - name: Build and push
        id:   docker_build
        uses: docker/build-push-action@v3
        with:
          push: true
          context: .
          tags: |
            encointer/parachain:${{ github.event.release.tag_name }}
          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 }}