How to SSH to worker nodes of openshift cluster on IBM cloud

Question

I have a openshift cluster on IBM cloud. I want to connect to the worker nodes using SSH via Putty but documentation says,

SSH by password is unavailable on the worker nodes.

Is there a way to connect to those?

Answer 1

If you use OpenShift v4 on IBM cloud, you may access your worker nodes using oc debug node/<target node name> instead of SSH. oc debug node command launches a temporary pod for the terminal session on the target node. You can check and run linux commands like usual SSH session through the Pod. Try it.

Answer 2

SSH access to worker nodes in OpenShift is disabled for security reasons. The documentation suggests to use DaemonSets for actions to be performed on worker nodes.