Bug 1890270
| Summary: | External IP doesn't work if the IP address is not assigned to a node | |||
|---|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Tim Rozet <trozet> | |
| Component: | Networking | Assignee: | Tim Rozet <trozet> | |
| Networking sub component: | ovn-kubernetes | QA Contact: | Weibin Liang <weliang> | |
| Status: | CLOSED ERRATA | Docs Contact: | ||
| Severity: | medium | |||
| Priority: | unspecified | CC: | avishnoi, bbennett, djuran | |
| Version: | 4.6 | |||
| Target Milestone: | --- | |||
| Target Release: | 4.7.0 | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | Doc Type: | Bug Fix | ||
| Doc Text: |
Cause:
External IP services had incorrect routes created for OVN-Kubernetes on nodes where the External IP was not configured.
Consequence:
Sending traffic to nodes destined towards an External IP would not function if the node was not physically configured with the External IP.
Fix:
Nodes that do not have the external IP configured on them, now get proper routes added to ensure the traffic goes to OVN where it will be DNAT'ed towards the proper service endpoint.
Result:
External IP functions as specified by Kubernetes.
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Story Points: | --- | |
| Clone Of: | ||||
| : | 1890274 (view as bug list) | Environment: | ||
| Last Closed: | 2021-02-24 15:27:41 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1890274 | |||
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Description
Tim Rozet
2020-10-21 19:19:40 UTC
@weliang Can you help looking at it? Thanks Tested and verified in 4.7.0-0.nightly-2020-11-18-203317 [root@weliang24-r2gd5-lb ~]# ip route default via 10.0.99.254 dev eth0 proto dhcp metric 100 10.0.96.0/22 dev eth0 proto kernel scope link src 10.0.96.54 metric 100 10.1.1.1 via 10.0.96.192 dev eth0 169.254.169.254 via 10.0.96.161 dev eth0 proto dhcp metric 100 [root@weliang24-r2gd5-lb ~]# curl -k 10.1.1.1:27018 externalip-pod [root@weliang24-r2gd5-lb ~]# Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.7.0 security, bug fix, and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2020:5633 |