name: Build/Push (master)

on:
  push:
    branches:
      - '*'
  pull_request:
    branches:
      - '*'

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        go_version: [ '1.12', '1.13', '1.14' ]
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-go@v1
        with:
          go-version: ${{ matrix.go_version }}

      - name: Install go dependencies
        run: go get -t -v ./...

      - name: Run go tests
        run: go test -v -cover -race ./...

  build:
    runs-on: ubuntu-latest
    needs: test
    strategy:
      matrix:
        include:
          - os: linux
            arch: amd64
            image: scratch
          - os: linux
            arch: arm
            image: arm32v7/alpine:3.11
          - os: linux
            arch: arm64
            image: arm64v8/alpine:3.11

    steps:
      - uses: actions/checkout@v2

      - name: Build and push docker image (${{ matrix.os }}/${{ matrix.arch }})
        uses: docker/build-push-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
          repository: ekofr/pihole-exporter
          tags: ${{ matrix.arch }}
          build_args: OS=${{ matrix.os }},ARCH=${{ matrix.arch }},IMAGE=${{ matrix.image }}