This ensures the `ipcs` command from util-linux will be used, which
succeeds when Docker is running with SELinux enabled (while the one from
busybox fails.)

Tested: On a host with Docker running with SELinux enabled:

  $ make test-e2e-node REMOTE=true FOCUS="host IPC"

  • [SLOW TEST:17.272 seconds] (passed)
  [k8s.io] Security Context
    when creating a pod in the host IPC namespace
      should show the shared memory ID in the host IPC containers

  • [SLOW TEST:20.419 seconds] (passed)
  [k8s.io] Security Context
    when creating a pod in the host IPC namespace
      should not show the shared memory ID in the non-hostIPC containers

  Ran 2 of 257 Specs in 43.934 seconds
  SUCCESS! -- 2 Passed | 0 Failed | 0 Pending | 255 Skipped