# get worker node name
oc get pod -o wide
# get container id
oc get pod <podname> |grep -i containerid
# login to worker node
# get pid by using container-id
docker inspect <container-id> |grep -i pid
# use namespace enter -t <pid> and run tcpdump command.
nsenter -t 1234 -n tcpdump -nnvv -i eth0 port 3128
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