kubernetes: Mount hostpath volume after pod start

2
votes

In kubernetes, is there a way to mount hostPath volume after pod got started?

1
dockercontainerskubernetesgoogle-kubernetes-engine
I doubt. But why would you want to do that? what's the use case? – Tarun Lalwani
Thanks Tarun, I am running my workflow scheduler on k8s, I want to allow application developers to deploy their apps at runtime. Some of the developers like to install application binaries on host(due to huge size) and mount it inside container. – banjara
Updating the pod definition and running it would do it, but would restart the pod. Any reason that doesn't work for you? – Tarun Lalwani
Thanks @TarunLalwani, this will also restart application processes running inside workflow scheduler. – banjara

1 Answers

0
votes

There is no way to add a volume to a running Docker container, so Kubernetes has no way to add a volume to a running Pod. Modifying the Pod to include a new hostPath volume will recreate the container(s) in the Pod and mount the volumes as specified.