I'm trying to run an interactive Pod (container) in Kubernetes that does not create a Job or Deployment and deletes itself after completing.
The purpose of the container is to give our developers an easy way to access our database, which doesn't have a public IP address.
Currently, we are using this command:
kubectl run -i --tty proxy-pgclient --image=private-registry.com/pgclient --restart=Never --env="PGPASSWORD=foobar" -- psql -h dbhost.local -p 5432 -U pg_admin -W postgreswhich works the first time you run it, however, after exiting the session if you try to run the above again to connect to the database again, we get:
Error from server: jobs.extensions "proxy-pgclient" already existsForcing the developer to delete the job with:
kubectl delete job proxy-pgclientbefore they can run the command and connect again.
Is there any way of starting up an interactive container (Pod) in Kubernetes without creating a Job or Deployment object and having that container be deleted when the interactive session is closed?
Adding the "--rm" flag to the original command resulted in the Job (and Pod) being deleted at the completion of the interactive session, which is what I was after. The command then becomes:
kubectl run -i --tty --rm proxy-pgclient --image=private-registry.com/pgclient --restart=Never --env="PGPASSWORD=foobar" -- psql -h dbhost.local -p 5432 -U pg_admin -W postgresThere isn't a short kubectl command that will do exactly what you want. Instead, you can create a yaml/json file with your pod description and run kubectl create -f pod.yaml. Your pod can be set to never restart, so it will terminate once it exits.