Create kubernetes pod with volume using kubectl run

Question

I understand that you can create a pod with Deployment/Job using kubectl run. But is it possible to create one with a volume attached to it? I tried running this command:

kubectl run -i --rm --tty ubuntu --overrides='{ "apiVersion":"batch/v1", "spec": {"containers": {"image": "ubuntu:14.04", "volumeMounts": {"mountPath": "/home/store", "name":"store"}}, "volumes":{"name":"store", "emptyDir":{}}}}' --image=ubuntu:14.04 --restart=Never -- bash 

But the volume does not appear in the interactive bash.

Is there a better way to create a pod with volume that you can attach to?

Answer 1

Your JSON override is specified incorrectly. Unfortunately kubectl run just ignores fields it doesn't understand.

kubectl run -i --rm --tty ubuntu --overrides=' {   "apiVersion": "batch/v1",   "spec": {     "template": {       "spec": {         "containers": [           {             "name": "ubuntu",             "image": "ubuntu:14.04",             "args": [               "bash"             ],             "stdin": true,             "stdinOnce": true,             "tty": true,             "volumeMounts": [{               "mountPath": "/home/store",               "name": "store"             }]           }         ],         "volumes": [{           "name":"store",           "emptyDir":{}         }]       }     }   } } '  --image=ubuntu:14.04 --restart=Never -- bash 

To debug this issue I ran the command you specified, and then in another terminal ran:

kubectl get job ubuntu -o json 

From there you can see that the actual job structure differs from your json override (you were missing the nested template/spec, and volumes, volumeMounts, and containers need to be arrays).