CODEWITHSUNDEEP
kubernetes
Eswari
Eswari

Reputation: 999

Need to do ssh to Kubernetes pod

Is it possible to take ssh to pod? Eg: ssh pod_ip

I know we can do this with the kubectl command. But I need to do ssh from my local linux machine which doesn't have kubectl.

Upvotes: 99

Views: 175006

Answers (5)

Shridhar
Shridhar

Reputation: 9

You can try, OpenPubkey to SSH Without SSH Keys. Following are the links for more information.

Upvotes: 0

Vicente Rocha
Vicente Rocha

Reputation: 357

for anyone looking for a one liner, this should do it.

Given:

  • namespace: cars
  • app: hud

Running, gets you bash in the first pod:

kubectl exec -i -t $(kubectl get pod --namespace cars --selector='app=hud' --output jsonpath='{.items[0].metadata.name}') -n cars -- /bin/bash

Where this extracts the 1st pod when listing pods:

$(kubectl get pod --namespace cars --selector='app=hud' --output jsonpath='{.items[0].metadata.name}')

Upvotes: 5

hakik ayoub
hakik ayoub

Reputation: 65

I use:

kubectl exec -it deployments.apps/deployment-example bash -n namespace-example

Upvotes: -2

nagendra547
nagendra547

Reputation: 6302

If you would like to login inside a particular container in the POD

kubectl exec -it <Pod_Name> -c <Container_Name> -- /bin/bash

If you would like to login to default container (or if there is only one container in POD) then just use

kubectl exec -it <Pod_Name> -- /bin/bash


PS:- If /bin/bash is not working try /bin/sh

Upvotes: 89

ichbinblau
ichbinblau

Reputation: 4799

Firstly, you have to ensure that the openssh-server has been installed and running in the pod. If not, you can use kubectl exec -it <pod-name> -n <namespace> -- bash to access the pod. If your pod are running Ubuntu, do apt-get install -y openssh-server.

Secondly, pods are running in a virtual IP subnet assigned by network service. They are accessible to any Master nodes and Worker nodes in the cluster. You can do ssh from any of the Host OS.

Upvotes: 85

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