title: kubernetes / Best practice to inject values to configMap
body: <p>I'm new at kubernetes, and Im wondering the best way to inject values to <a href="https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/" rel="nofollow noreferrer">ConfigMap</a>.</p>
  
  <p>for now, I defined Deployment object which takes the relevant values from ConfigMap file. I wish to use the same <code>.yml</code> file for my production and staging environments. so only the values in the configMap will be changed, while the file itself will be the same.</p>
  
  <p>Is there any way to do it built-in in kubernetes, without using configuration management tools (like Ansible, puppet, etc.)?</p>