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Bug
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Resolution: Done-Errata
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Major
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None
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4.15.z
Description of problem
Debug into one of the worker nodes on the hosted cluster:
oc debug node/ip-10-1-0-97.ca-central-1.compute.internal nslookup kubernetes.default.svc.cluster.local Server: 10.1.0.2 Address: 10.1.0.2#53 ** server can't find kubernetes.default.svc.cluster.local: NXDOMAIN curl -k https://172.30.0.1:443/readyz curl: (7) Failed to connect to 172.30.0.1 port 443: Connection refused sh-5.1# curl -k https://172.20.0.1:443/readyz ok
Version-Release number of selected component (if applicable):
4.15.20
Steps to Reproduce:
Unknown
Actual results:
Pods on a hosted cluster's workers unable to connect to their internal kube apiserver via the service IP.
Expected results:
Pods on a hosted cluster's workers have connectivity to their kube apiserver via the service IP.
Additional info:
Checked the "Konnectivity server" logs on Dynatrace and found the error below occurs repeatedly
E0724 01:02:00.223151 1 server.go:895] "DIAL_RSP contains failure" err="dial tcp 172.30.176.80:8443: i/o timeout" dialID=8375732890105363305 agentID="1eab211f-6ea1-46ea-bc78-14d75d6ba325" E0724 01:02:00.223482 1 tunnel.go:150] "Received failure on connection" err="read tcp 10.128.17.15:8090->10.128.82.107:52462: use of closed network connection"
- Looks the konnectivity server is trying to establish a connection to 172.30.176.80:8443 but is timing out
- also the 2nd error indicates that an existing network connection was closed unexpectedly
Relevant OHSS Ticket: https://issues.redhat.com/browse/OHSS-36053
- blocks
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- Closed
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- is blocked by
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HOSTEDCP-1849 Impact statement request for OCPBUGS-37486 Cannot reach to kubernetes.default.svc.cluster.local from workers of Hosted Cluster
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- Closed
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- is cloned by
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- Closed
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- links to
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RHEA-2024:3718
OpenShift Container Platform 4.17.z bug fix update