GitHub Actions in Action - Workflow with service

# This is a basic workflow to help you get started with Actions

name: build and test

# Controls when the action will run. 
on:
  # Triggers the workflow on push or pull request events but only for the main branch
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  # This workflow contains a single job called "build"
  build:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    #Add services, aka Docker containers that runs in paralell
    services:
      #Name the service
      postgres:
        #Set the Docker image to use, find images on Dockerhub.com
        image: postgres:12
        # Set environment variables
        env: 
          POSTGRES_USER: user
          POSTGRES_PASSWORD: qwerty
          POSTGRES_DB: workflow
        # Expose ports
        ports: 
          - 5432:5432
        # Add some health options to make sure PostgreSQL is running fully before moving on
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - uses: actions/checkout@v2
      # Sets up and installs Golang
      - name: Setup Go environment
        uses: actions/[email protected]
      # Go get to fetch external dependecny like the PostgeSQL driver
      - name: go get
        run: go get -v -t -d ./...
      # Run the go compile tooling using command line go build
      - name: Build
        run: go build 
      # Run unit tests that are available 
      - name: Test
        # Notice the | ? This is used to run MULTIPLE command lines in one run.
        run: |
          go test -v
          echo Complete
        # The tests are using environment variables so we need to add those 
        env:
          POSTGRES_HOST: localhost
          POSTGRES_USER: user
          POSTGRES_PASS: qwerty
          POSTGRES_PORT: 5432
          POSTGRES_DB: workflow