name: Check PR

on:
  pull_request:
    branches:
      - master

env:
  IMAGE_NAME: cdalvaro/saltstack-master
  IMAGE_TAG: ci

jobs:
  build:
    name: Build image
    runs-on: ubuntu-latest
    timeout-minutes: 45
    steps:
      - name: Set env variables
        run: |
          echo ::set-env name=CACHE_FROM::"${{ env.IMAGE_NAME }}:latest"
          echo ::set-env name=DOCKER_IMAGE::"${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}"

      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Cache lastest image
        run: docker pull ${CACHE_FROM}

      - name: Build Docker image
        run: |
          docker build \
            --build-arg VCS_REF="${GITHUB_SHA::7}" \
            --build-arg BUILD_DATE="$(date +"%Y-%m-%d %H:%M:%S%:z")" \
            --cache-from ${CACHE_FROM} \
            --tag "${DOCKER_IMAGE}" .

      - name: Save docker image
        run: |
          mkdir -p docker/
          docker save -o docker/docker-image.tar "${DOCKER_IMAGE}"

      - name: Upload image for test job
        uses: actions/upload-artifact@v2
        with:
          name: docker-image
          path: docker/docker-image.tar

  test:
    name: Test image
    needs: build
    runs-on: ubuntu-latest
    env:
      CONTAINER_NAME: salt_master_ci
    steps:
      - name: Download docker image from build job
        uses: actions/download-artifact@v2
        with:
          name: docker-image
          path: docker/

      - name: Load docker image from build job
        run: docker load -i docker/docker-image.tar

      - name: Launch docker container
        run: docker run --rm -d --name "${CONTAINER_NAME}" "${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}"

      - name: Show container info
        run: docker container ls

      - name: Wait for salt-master bootup
        run: sleep 60

      - name: Show salt versions
        run: docker exec "${CONTAINER_NAME}" salt --versions

      - name: Test image calling healthcheck
        run: docker exec "${CONTAINER_NAME}" /usr/local/sbin/healthcheck