$ kubectl run testpod --image=busybox  -- sleep 3600
$ docker ps -a | grep testpod
ef9bb3c69dfa   busybox                                                        "/docker-entrypoint.…"   2 minutes ago    Up 2 minutes                              k8s-container_testpod_default_ebb8ace6-84ab-4a28-814c-109c41827908_1
e6868ab3d8ef   google_containers/pause:3.9                                                   "/pause"                  2 minutes ago    Up 2 minutes                              k8s_POD_testpod_default_ebb8ace6-84ab-4a28-814c-109c41827908_1

$ docker inspect e6868ab3d8ef | grep ResolvConfPath
        "ResolvConfPath": "/var/lib/docker/containers/e6868ab3d8ef8fa1238a82a15faa88b1d13967a71a1e16c99618663610d21286/resolv.conf",
$ cat /var/lib/docker/containers/e6868ab3d8ef8fa1238a82a15faa88b1d13967a71a1e16c99618663610d21286/resolv.conf
nameserver 10.96.0.10
search default.svc.cluster.local. svc.cluster.local. cluster.local.
options ndots:5

$ docker restart e6868ab3d8ef
e6868ab3d8ef

$ cat /var/lib/docker/containers/e6868ab3d8ef8fa1238a82a15faa88b1d13967a71a1e16c99618663610d21286/resolv.conf
# Generated by Docker Engine.
# This file can be edited; Docker Engine will not make further changes once it
# has been modified.

nameserver 223.5.5.5

# Based on host file: '/etc/resolv.conf' (legacy)
# Overrides: []