title: Add Sidecar container to running pod(s)
body: <p>I have helm deployment scripts for a vendor application which we are operating. For logging solution, I need to add a sidecar container for fluentbit to push the logs to aggregated log server (splunk in this case).</p>
  <p>Now to define this sidecar container, I want to avoid changing vendor defined deployment scripts. Instead i want some alternative way to attach the sidecar container to the running pod(s).</p>
  <p>So far I have understood that sidecar container can be defined inside the same deployment script (deployment configuration).</p>