title: multiple command in postStart hook of a container
body: <p>in a kubernetes Deployment yaml file is there a simple way to run multiple commands in the postStart hook of a container?</p>
  
  <p>I'm trying to do something like this:</p>
  
  <pre><code>lifecycle:
    postStart:
      exec:
        command: ["/bin/cp", "/webapps/myapp.war", "/apps/"]
        command: ["/bin/mkdir", "-p", "/conf/myapp"]
        command: ["touch", "/conf/myapp/ready.txt"]
  </code></pre>
  
  <p>But it doesn't work.
  (looks like only the last command is executed)</p>
  
  <p>I know I could embed a script in the container image and simply call it there... But I would like to be able to customize those commands in the yaml file without touching the container image.</p>
  
  <p>thanks</p>