title: How to get the current namespace in a Pod?
body: <p>One way I could think of is to set an environment which value is the namespace of the Pod when defining the Pod.<br>
  Getting the namespace dynamically without requiring changes for Pod will be 
  better because it lessens the burden of constructing a Pod.  </p>
  
  <p>So is there a way to get current namespace in a Pod?</p>