'Get environment variable from kubernetes pod?

What's the best way to list out the environment variables in a kubernetes pod?

(Similar to this, but for Kube, not Docker.)

kubernetes


Solution 1:[1]

kubectl exec -it <pod_name> -- env

Solution 2:[2]

Execute in bash:

kubectl exec -it <pod-name> -- printenv | grep -i env

You will get all environment variables that consists env keyword.

Solution 3:[3]

Both answers have the following issues:

  1. They assume you have the permissions to start pod, which is not the case in a locked-down environment
  2. They start a new pod, which is invasive and may give different environment variables than "a[n already running] kubernetes pod"

To inspect a running pod and get its environment variables, one can run:

kubectl describe pod <podname>

This is from Alexey Usharovski's comment.

I am hoping this gives more visibility to your great answer. If you would like to post it as an answer yourself, please let me know and I will delete mine.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Robert Yi
Solution 2
Solution 3 pyb

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