title: Running multiple projects using docker which each runs with docker-compose
body: <p>We are using microservices approach to build our product. We are using some projects which each uses docker-compose to run. The problem is that in development environment, if we want to change codes in multiple projects and test developed codes, we must run projects separately and link them together manually.</p>
  
  <p>Now we want to create a development kit which clones projects and runs them together and handles links. Can docker-compose handle multiple docker-compose file? If not is there any sufficient tool to do that for us? Or is there any recommended approach for our goal?</p>
  
  <p>EDIT: For example we have two projects: PROJECT_A and PROJECT_B. Each one has its own docker-compose.yml and each one needs postgresql to run. We have docker-compose.yml in PROJECT_A like this:</p>
  
  <pre><code>db:
      image: postgres:9.4
      ports:
        - "5432"
  
  project_a:
      build: .
      command: python2.7 main.py
      links:
          - db
  </code></pre>
  
  <p>And we have docker-compose.yml in PROJECT_B like this:</p>
  
  <pre><code>db:
      image: postgres:9.4
      ports:
        - "5432"
  
  project_b:
      build: .
      command: python2.7 main.py
      links:
          - db
  </code></pre>
  
  <p>Each project can run separately and works fine. But if we want to change the api between PROJECT_A and PROJECT_B we need to run both projects and link them together to test our code. Now we want to write a development kit project which can run both projects and link them if needed. What is the best approach to do this?</p>