title: How can I wait for the container to be healthy in GitHub action?
body: <p>I am using GitHub action to do some automation test and my application was developed in docker.</p>
  <pre><code>name: Docker Image CI
  
  on:
    push:
      branches: [ master]
    pull_request:
      branches: [ master]
  
  jobs:
  
    build:
  
      runs-on: ubuntu-latest
  
      steps:
      - uses: actions/checkout@v2
      - name: Build the Docker image
        run: docker-compose build
  
      - name: up mysql and apache container runs
        run: docker-compose up -d 
  
      - name: install dependencies
        run: docker exec  myapp php composer.phar install
    
      - name: show running container
        run: docker ps 
  
  
      - name: run unit test
        run: docker exec  myapp ./vendor/bin/phpunit 
  </code></pre>
  <p>At the step 'show running container', I can see that all the containers are running but for the MySQL, the status is (health: starting). Thus, my unit test cases all failed as it requires a connection to MySQL. So may I know if there is a way to start the unit case only when the MySQL container's status is healthy?</p>