Set a specific name to a pod created from a yaml with an apply command

I would like to know if there is a way to launch a pod from a yaml but with a custom name.

The objective of all this is to be able to add to the pod name something like a user id and then be able to delete it when the user requires it, having this way an unequivocal way to find the pod.

It would be something like:

kubectl apply -f ./foo.yaml -name custom-name

Thanks in advance!

>Solution :

You can’t do that with kubectl, but you can:

• Perform the substitution with something like sed and pipe the result to kubectl apply:

  sed 's/PODNAME/custom-name/' foo.yaml |
    kubectl apply -f-
  

  (This assumes that you have name: PODNAME in the original manifest.)

• Use a YAML processing tool to make the change. For example, using yq (note that there are multiple commands with that name; hence the link).

  yq '.metadata.name = "custom-name"' foo.yaml |
    kubectl apply -f-
  

  This has the advantage that you don’t need a specific sentinel name like PODNAME in the source file.

• Create a Helm template and deploy the manifest(s) with helm, in which case you could set the value on the command line.

  helm install <your/repository> --set-string podname=custom-name
  

• Use some other templating tool, such as Ansible’s k8s module.