anchor.diff:  
   ## Using Docker Compose without plugins
   
  +<div class="Docs__troubleshooting-note">
  +<h1>Deprecation Notice</h1>
  +<p>Using Docker Compose with environment variables is a deprecated pattern. The recommended way to use Docker Compose in your pipeline is with <a href="/docs/agent/v3/plugins">plugins</a>.</p>
  +</div>
  +
   You can use Docker in your pipelines without using plugins by using environment variables. 
   
   Firstly we need to add the following environment variable to our build, either on an individual build step or as a pipeline-level environment variable:
  
positive.code: 
  ## Using Docker without plugins
  
  To use plain Docker instead of Docker Compose, add the following environment variable in your build step configuration:
  
  ```
  
negative.code:     command: test.sh
      parallelism: 25
      plugins:
        docker-compose#v2.0.0:
          run: app
  ```
  
  