title: Perform task for other host during role execution
body: <p>I try to run a role (Ansistrano) on a host, which is fine:</p>
  
  <pre><code>---
  - name: perform role
    hosts: host_one
    roles: 
      - ansistrano
  </code></pre>
  
  <p>I can specify other playbooks, which are included in the role:</p>
  
  <pre><code>ansistrano_specify_playbook: playbook.yml
  </code></pre>
  
  <p>But, now there is a single task I have to execute for another host, part of this playbook during role execution. I <em>cannot</em> achieve this with <code>import_playbook</code>.</p>
  
  <pre><code>- name: include task for other host
    import_playbook: other_host.yml
  </code></pre>
  
  <p>So, I'd like to perform a single task for another host during this role execution. Using <code>when</code> is not possible, since the role cannot be edited.</p>
  
  <hr>
  
  <p>EDIT:</p>
  
  <p>Note: The second host is not in the play/inventory during execution. So <code>delegate_to</code> will not work.</p>