title: How to install dependent role on specific host with ansible
body: <p>I have the following <code>role/meta/main.yml</code> script:</p>
  
  <pre><code>---
  dependencies:
    - role: common
    - role: nginx
    - role: postgres
    - role: my_db
  </code></pre>
  
  <p>And I need to install the <code>my_db</code> role on a specific host, lets say <code>1.2.3.4</code>, for example.</p>