replicatedhq / replicatedhq/kURL

Connectivity Issue: Unable to Telnet to Kubernetes Services from Nodes Other Than the Deployment Node

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Shell
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Avg merge
1d 21h
Merged PRs (30d)
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Description

The presented issue revolves around a Kubernetes cluster that has been successfully installed using kurl on Ubuntu 22. All Kubernetes pods appear to be functioning as expected without any apparent disruptions. However, a critical connectivity problem happend, preventing from establishing Telnet connections to the services hosted within the cluster from nodes other than the node where the services' pods are deployed.

Upon initial observation, the Kubernetes cluster appears to be functioning correctly, with pods running, services deployed, and overall cluster health indicating normal operations. Despite this seemingly healthy state, attempts to Telnet to the services from nodes other than the specific node hosting the corresponding pods result in failure.

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Research direction

The issue names no repository files, tests, logs, or entry points. Start by reproducing the failed Telnet access between Ubuntu nodes in the kURL-installed Kubernetes cluster and inspect the service and node-networking configuration; done means service connectivity works from nodes other than the pod's node.

Written by the indexing model from the issue text.

Assessment

Tech stack
kubernetes, ubuntu
Domain
infrastructure, networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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