title: SEAndroid-Run an app in a specific security domain
body: <p>I have an app (service) that does not have an activity. I would like to start this app in init.rc like this:</p>
  
  <pre><code>service secret_service /system/bin/am startservice com.my.secret.service/com.my.secret.service.SecretService
      class late_start
      user root
      group root
  </code></pre>
  
  <p>If run like above, this service runs in the "platform_app" security context. Howerver, I would like to run this in a different security context, such as "mysecurity". I have already tried using the seclabel like this:</p>
  
  <pre><code>service secret_service /system/bin/am startservice com.my.secret.service/com.my.secret.service.SecretService
      class late_start
      user root
      group root
      seclabel u:r:mysecurity:s0
  </code></pre>
  
  <p>But it does not work. Does anyone have an idea how to achieve this?</p>
  
  <p>Thank you.</p>