How to SSH to docker container in kubernetes cluster? [closed]

Answer 1

The existing answers are great, just wanted to contribute a really convenient command that lists all pods and containers, so you can choose one to plug into the kubectl exec command.

kubectl get pods -o=custom-columns=POD:.metadata.name,CONTAINERS:.spec.containers[*].name

Gives output like this

POD     CONTAINERS
pod-1   service-1,service-2
pod-2   service-1,service-2
pod-3   service-3
pod-4   service-3

Then ssh into any of those containers by just plugging in the names

kubectl exec -it POD -c CONTAINER /bin/sh

e.g. service-2 in pod-2

kubectl exec -it pod-2 -c service-2 /bin/sh

_{NOTE add -n namespace to any of the above commands to specify a namespace if necessary.}