docker-build-and-push.yml

# Copyright 2020 ChainSafe Systems
# SPDX-License-Identifier: LGPL-3.0-only

name: Docker build and push

on:
  push:
    branches:
    # when main branch receives a push
      - main
    # when any of these versions receive a push
    tags:
      - "v*.*.*"
  # when any releases are created
  release:
    types:
      - created
# list jobs
jobs:
  build-and-deploy:
    name: Docker Deployment
    runs-on: ubuntu-latest
    # requires these jobs to run first
    needs: [test, e2e, lint]
    # if check not passed, job will be skipped
    if: github.ref == 'refs/heads/main' || contains(github.ref, '/tags/v')
    # list steps
    steps:
    # prepares docker images
      - name: Prepare
        id: prep
        run: |
          # creates local variable of chainbridge docker image
          DOCKER_IMAGE=chainsafe/chainbridge

          # creates local variable of commit hash that triggered workflow
          COMMIT_HASH=$(echo $GITHUB_SHA | head -c7)

          # creates local variable to hold docker images
          TAGS="${DOCKER_IMAGE}:${COMMIT_HASH},${DOCKER_IMAGE}:latest"

          # check if branch/tag that triggered workflow was from tags
          if [[ $GITHUB_REF == refs/tags/* ]]; then

            # set version 
            VERSION=${GITHUB_REF#refs/tags/}

            # append version to tags
            TAGS="${TAGS},${DOCKER_IMAGE}:${VERSION}"

          fi

          # sets output of step
          echo ::set-output name=tags::${TAGS}
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      - 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 and push
        id: docker_build
        uses: docker/build-push-action@v2
        with:
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.prep.outputs.tags }}
      - name: Image digest
        run: echo ${{ steps.docker_build.outputs.digest }}
  test:
    name: Tests
    strategy:
      matrix:
        go-version: [1.15.x]
        platform: [ubuntu-latest]
    runs-on: ${{ matrix.platform }}
    steps:
      - name: Install Go
        uses: actions/setup-go@v2
        with:
          go-version: ${{ matrix.go-version }}
      - name: Checkout code
        uses: actions/checkout@v2
      - uses: actions/cache@v2.1.6
        with:
          path: ~/go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-
      - name: Install Subkey
        run: |
          wget -P $HOME/.local/bin/ https://chainbridge.ams3.digitaloceanspaces.com/subkey-v2.0.0
          mv $HOME/.local/bin/subkey-v2.0.0 $HOME/.local/bin/subkey
          chmod +x $HOME/.local/bin/subkey
          echo "$HOME/.local/bin" >> $GITHUB_PATH
      - name: Test
        run: |
          docker-compose -f ./docker-compose-e2e.yml up -d
          sleep 3
          docker ps
          make test

  e2e:
    name: E2E Tests
    strategy:
      matrix:
        go-version: [ 1.15.x ]
        platform: [ ubuntu-latest ]
    runs-on: ${{ matrix.platform }}
    steps:
      - name: Install Go
        uses: actions/setup-go@v2
        with:
          go-version: ${{ matrix.go-version }}
      - name: Checkout code
        uses: actions/checkout@v2
      - uses: actions/cache@v2.1.6
        with:
          path: ~/go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-
      - name: Install Subkey
        run: |
          wget -P $HOME/.local/bin/ https://chainbridge.ams3.digitaloceanspaces.com/subkey-v2.0.0
          mv $HOME/.local/bin/subkey-v2.0.0 $HOME/.local/bin/subkey
          chmod +x $HOME/.local/bin/subkey
          echo "$HOME/.local/bin" >> $GITHUB_PATH
      - name: Test
        run: |
          docker-compose -f ./docker-compose-e2e.yml up -d
          docker ps
          make test-e2e

  lint:
    name: Lint and License Headers
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: golangci-lint
        uses: golangci/golangci-lint-action@v2
        with:
          version: v1.36
          args: --timeout=5m
      - name: License Check
        run: make license-check