Bug 1896898
| Summary: | ovs-configuration.service fails when multiple IPv6 default routes are provided via RAs over the same interface and deployment bootstrap fails | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Marius Cornea <mcornea> |
| Component: | Networking | Assignee: | Dan Winship <danw> |
| Networking sub component: | ovn-kubernetes | QA Contact: | Anurag saxena <anusaxen> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | urgent | ||
| Priority: | urgent | CC: | achernet, aconstan, anbhat |
| Version: | 4.6 | Keywords: | TestBlocker |
| Target Milestone: | --- | ||
| Target Release: | 4.7.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | No Doc Update | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-02-24 15:32:36 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: | 1897336, 1898567 | ||
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 |
Description of problem: ovs-configuration.service when multiple IPv6 default routes are provided via RAs During deployment on one of the master nodes we get multiple IPv6 default routes over the same interface: ip -6 r show default default proto ra metric 101 nexthop via fe80::200:5eff:fe00:201 dev eno6 weight 1 nexthop via fe80::2e21:3101:b5e3:8f00 dev eno6 weight 1 nexthop via fe80::d207:ca01:b521:2700 dev eno6 weight 1 pref medium Trying to run manually the /usr/local/bin/configure-ovs.sh script we can see that it cannot find the default route as it's assuming only one: /usr/local/bin/configure-ovs.sh OVNKubernetes + rpm -qa + grep -q openvswitch + touch /var/run/ovs-config-executed + '[' OVNKubernetes == OVNKubernetes ']' + NM_CONN_PATH=/etc/NetworkManager/system-connections + iface= + counter=0 + '[' 0 -lt 12 ']' ++ ip route show default ++ awk '{if ($4 == "dev") print $5; exit}' + iface= + [[ -n '' ]] ++ ip -6 route show default ++ awk '{if ($4 == "dev") print $5; exit}' + iface= + [[ -n '' ]] + counter=1 + echo 'No default route found on attempt: 1' No default route found on attempt: 1 + sleep 5 Version-Release number of selected component (if applicable): quay.io/openshift-release-dev/ocp-release:4.6.3-x86_64 How reproducible: 100% Steps to Reproduce: 1. Deploy baremetal environment via IPI flow with IPv6 control plane. The nodes should receive multiple IPv6 default routes via RAs Actual results: ovs-configuration.service assumes a single IPv6 default route Expected results: ovs-configuration.service should handle multiple IPv6 default routes over the same interface Additional info: