The helpers for executing a process have long required an actionName
param which is not being used. Now we remove the old param
while also cleaning up various other usages of the exec
package.
Signed-off-by: Travis Nielsen <tnielsen@redhat.com>
Current Ceph volume manager code doesn't take the builtin
kernel module into the account, so the `modinfo` will fail
in this case. Also, we need to add error handling code to
make sure the volume manager does work when proceeding to
continue, otherwise we will encounter the `rbd` related issue
in the following step even we have an artificial `agent` pod
in running state.
Signed-off-by: Dennis Chen <dennis.chen@arm.com>