name: CI

on:
  release:
    types:
      - published
  push:
    branches:
      - '3.0'
      - '4.0'
      - '5.0'
      - 'trunk'
    paths-ignore:
      - '.env*'
      - 'docker-compose*.yaml'
      - '*/rhel/*'
      - "**.md"

defaults:
  run:
    shell: bash

jobs:
  build:
    env:
      LATEST_BRANCH: "${{ github.event.repository.default_branch }}"
      DOCKER_REPOSITORY: "zabbix"
    strategy:
      fail-fast: false  
      matrix:
        build:
          - agent
          - agent2
          - java-gateway
          - proxy-mysql
          - proxy-sqlite3
          - server-mysql
          - server-pgsql
          - snmptraps
          - web-apache-mysql
          - web-apache-pgsql
          - web-nginx-mysql
          - web-nginx-pgsql
        os:
         - alpine
         - ubuntu
         - centos
        exclude:
          - os: centos
            build: agent2
          - os: ubuntu
            build: agent2

    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Install buildx
        env:
          DOCKER_CLI_EXPERIMENTAL: enabled
        run: |
          BUILDX_VERSION="0.4.2"
          QEMU_TAG="latest"
          mkdir -p ~/.docker/cli-plugins/
          curl -L https://github.com/docker/buildx/releases/download/v${BUILDX_VERSION}/buildx-v${BUILDX_VERSION}.linux-amd64 \
                -o ~/.docker/cli-plugins/docker-buildx
          chmod +x ~/.docker/cli-plugins/docker-buildx
          docker pull -q multiarch/qemu-user-static:latest
          docker run --rm --privileged multiarch/qemu-user-static:${QEMU_TAG} --reset -p yes --credential yes
          docker buildx create --name builder-${GITHUB_SHA::8} --driver docker-container --use
          docker buildx inspect --bootstrap
          docker info
          docker buildx inspect

      - name: Available platforms
        run: docker buildx inspect | grep Platforms

      - name: Prepare platform list
        id: platform
        run: |
          DOCKER_PLATFORM="linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/s390x,linux/ppc64le"

          if [ "${{ matrix.os }}" == "ubuntu" ]; then
            DOCKER_PLATFORM="linux/amd64,linux/arm/v7,linux/arm64,linux/s390x,linux/ppc64le"
          fi

          if [ "${{ matrix.os }}" == "ubuntu" ] && [ "${{ matrix.build }}" == "snmptraps" ]; then
            DOCKER_PLATFORM="linux/amd64,linux/arm64"
          fi

          if [ "${{ matrix.os }}" == "centos" ]; then
            DOCKER_PLATFORM="linux/amd64,linux/arm64,linux/ppc64le"
          fi

          if [ "${{ matrix.build }}" == "java-gateway" ]; then
            DOCKER_PLATFORM=${DOCKER_PLATFORM%",linux/ppc64le"}
          fi

          echo ::set-output name=list::${DOCKER_PLATFORM}

      - name: Prepare environment (push)
        if: github.event_name == 'push'
        id: prepare_push
        run: |
          TAGS_ARRAY=()

          IMAGE_NAME="${{ env.DOCKER_REPOSITORY }}/zabbix-${{ matrix.build }}"
          GIT_BRANCH="${{ github.ref }}"
          GIT_BRANCH=${GIT_BRANCH:11}

          echo "::debug::Branch - ${GIT_BRANCH}"

          if [ "${GIT_BRANCH}" == "trunk" ]; then
            TAGS_ARRAY+=("$IMAGE_NAME:${{ matrix.os }}-${GIT_BRANCH}")
          else
            TAGS_ARRAY+=("$IMAGE_NAME:${{ matrix.os }}-${GIT_BRANCH}-latest")
          fi

          if [ "${{ matrix.os }}" == "alpine" ] && [ "${LATEST_BRANCH}" == "${GIT_BRANCH}" ]; then
            TAGS_ARRAY+=("$IMAGE_NAME:latest")
          fi

          if [ "${LATEST_BRANCH}" == "${GIT_BRANCH}" ]; then
            TAGS_ARRAY+=("$IMAGE_NAME:${{ matrix.os }}-latest")
          fi

          TAGS=$(printf -- "--tag %s " "${TAGS_ARRAY[@]}")

          echo "::debug::Tags - ${TAGS}"

          echo ::set-output name=image_name::${IMAGE_NAME}
          echo ::set-output name=image_tag_versions::$(printf -- "|%s" "${TAGS_ARRAY[@]}")
          echo ::set-output name=buildx_args::--platform "${{ steps.platform.outputs.list }}" \
            --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') \
            --build-arg VCS_REF=${GITHUB_SHA::8} \
            ${TAGS} \
            --file ./${{ matrix.build }}/${{ matrix.os }}/Dockerfile ./${{ matrix.build }}/${{ matrix.os }}

      - name: Prepare environment (release)
        if: github.event_name == 'release' && github.event.action == 'published'
        id: prepare_release
        run: |
          TAGS_ARRAY=()

          IMAGE_NAME="${{ env.DOCKER_REPOSITORY }}/zabbix-${{ matrix.build }}"
          RELEASE_VERSION="${{ github.ref }}"
          RELEASE_VERSION=${RELEASE_VERSION:10}
          GIT_BRANCH=${RELEASE_VERSION%.*}

          echo "::debug::Release version ${RELEASE_VERSION}. Branch ${GIT_BRANCH}"

          TAGS_ARRAY+=("$IMAGE_NAME:${{ matrix.os }}-${RELEASE_VERSION}")

          if [ "${{ matrix.os }}" == "alpine" ] && [ "${LATEST_BRANCH}" == "${GIT_BRANCH}" ]; then
            TAGS_ARRAY+=("$IMAGE_NAME:latest")
          fi

          TAGS=$(printf -- "--tag %s " "${TAGS_ARRAY[@]}")

          echo ::set-output name=image_name::${IMAGE_NAME}
          echo ::set-output name=image_tag_versions::$(printf -- "|%s" "${TAGS_ARRAY[@]}")
          echo ::set-output name=buildx_args::--platform "${{ steps.platform.outputs.list }}" \
            --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') \
            --build-arg VCS_REF=${GITHUB_SHA::8} \
            $TAGS \
            --file ./${{ matrix.build }}/${{ matrix.os }}/Dockerfile ./${{ matrix.build }}/${{ matrix.os }}

      - name: Build images
        env:
          DOCKER_CLI_EXPERIMENTAL: enabled
        run: |
          if [ ! -z "${{ steps.prepare_push.outputs.buildx_args }}" ]; then
              BUILDX_ARGS="${{ steps.prepare_push.outputs.buildx_args }}"
          elif [ ! -z "${{ steps.prepare_release.outputs.buildx_args }}" ]; then
              BUILDX_ARGS="${{ steps.prepare_release.outputs.buildx_args }}"
          else
              exit 1
          fi

          docker buildx build --cache-to "type=local,dest=/tmp/.buildx-cache" \
            --output "type=image,push=false" \
            ${BUILDX_ARGS}

      - name: Docker Hub login
        if: success()
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Push images from cache
        if: success()
        env:
          DOCKER_CLI_EXPERIMENTAL: enabled
        run: |
          if [ ! -z "${{ steps.prepare_push.outputs.buildx_args }}" ]; then
              BUILDX_ARGS="${{ steps.prepare_push.outputs.buildx_args }}"
          elif [ ! -z "${{ steps.prepare_release.outputs.buildx_args }}" ]; then
              BUILDX_ARGS="${{ steps.prepare_release.outputs.buildx_args }}"
          fi

          docker buildx build --cache-from "type=local,src=/tmp/.buildx-cache" \
            --output "type=image,push=${{ secrets.AUTO_PUSH_IMAGES }}" \
            ${BUILDX_ARGS}

      - name: Inspect images
        run: |
          echo "::debug::push - ${{ steps.prepare_push.outputs.buildx_args }}"
          echo "::debug::release - ${{ steps.prepare_release.outputs.buildx_args }}"

          if [ ! -z "${{ steps.prepare_push.outputs.image_tag_versions }}" ]; then
              IMAGE_TAG_VERSIONS="${{ steps.prepare_push.outputs.image_tag_versions }}"
              echo "::debug::tags push raw - $IMAGE_TAG_VERSIONS"
          elif [ ! -z "${{ steps.prepare_release.outputs.image_tag_versions }}" ]; then
              IMAGE_TAG_VERSIONS="${{ steps.prepare_release.outputs.image_tag_versions }}"
              echo "::debug::tags release raw - $IMAGE_TAG_VERSIONS"
          fi

          IMAGE_TAG_VERSIONS=${IMAGE_TAG_VERSIONS%%+(|)}
          IFS='|' read -r -a IMAGE_TAG_VERSIONS <<< $IMAGE_TAG_VERSIONS

          for version in ${IMAGE_TAG_VERSIONS[@]}; do
              echo "Checking \"$version\"... "
              docker buildx imagetools inspect $version
          done