Learn OpenShift

Managing volumes through oc volume

OpenShift users can attach a volume to any running application by using oc volume. In this example, we are going to create a pod with a basic application and attach a persistent volume to it.

First, just deploy a basic Apache web server using oc new-app:

# oc new-app httpd...<output omitted>...

After a little while, all httpd service resources will be available:

# oc get pod | egrep "^NAME|httpd"NAME           READY STATUS   RESTARTS  AGEhttpd-1-qnh5k   1/1  Running    0       49s

oc new-app created a deployment configuration that controls the application deployment process.

In this example, we are going to attach a PVC named pvc-data as a volume to the running container:

# oc volume dc/httpd --add --name=demovolume -t pvc --claim-name=pvc-data ...