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+++ This bug was initially created as a clone of Bug #2028966 +++ +++ This bug was initially created as a clone of Bug #2028964 +++ +++ This bug was initially created as a clone of Bug #2028963 +++ Description of problem: IP reconciliation is a feature in the latest whereabouts, and due to reports, this feature should be backported all the way to 4.6.z. The feature is in the form of a cron job which reconciles the IP addresses. Version-Release number of selected component (if applicable): 4.6-4.10 How reproducible: Specialized. Customers often experience this when nodes are rebooted, or pods are force deleted, and therefore CNI DEL calls aren't processed in their entirety by Whereabouts Steps to Reproduce: (We will produce a procedure which produces orphaned IP addresses) Actual results: IP addresses will remain stranded, and never utilized again. Expected results: IP addresses that were stranded become available for use again. Additional info: 4.10 has the reconciliation code but still requires a bug fix from upstream.
Testing passed in cluster-bot: launch openshift/whereabouts-cni#79,openshift/cluster-network-operator#1266 [weliang@weliang Test]$ oc get clusterversion NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.7.0-0.ci.test-2022-02-01-142111-ci-ln-zp1bifk-latest True False 10m Cluster version is 4.7.0-0.ci.test-2022-02-01-142111-ci-ln-zp1bifk-latest [weliang@weliang Test]$ [weliang@weliang Test]$ oc create -f ippool.yml -n openshift-multus ippool.whereabouts.cni.cncf.io/192.168.2.224-28 created [weliang@weliang Test]$ oc get ippools 192.168.2.224-28 -o yaml -n openshift-multus apiVersion: whereabouts.cni.cncf.io/v1alpha1 kind: IPPool metadata: creationTimestamp: "2022-02-01T15:00:02Z" generation: 2 name: 192.168.2.224-28 namespace: openshift-multus resourceVersion: "29743" selfLink: /apis/whereabouts.cni.cncf.io/v1alpha1/namespaces/openshift-multus/ippools/192.168.2.224-28 uid: d1e1ff0d-dd7e-4872-b59f-b02da12af3fc spec: allocations: {} range: 192.168.2.224/28 [weliang@weliang Test]$ oc create job --from=cronjob/ip-reconciler -n openshift-multus testrun-ip-reconciler job.batch/testrun-ip-reconciler created [weliang@weliang Test]$ oc get ippools 192.168.2.224-28 -o yaml -n openshift-multus apiVersion: whereabouts.cni.cncf.io/v1alpha1 kind: IPPool metadata: creationTimestamp: "2022-02-01T15:00:02Z" generation: 2 name: 192.168.2.224-28 namespace: openshift-multus resourceVersion: "29743" selfLink: /apis/whereabouts.cni.cncf.io/v1alpha1/namespaces/openshift-multus/ippools/192.168.2.224-28 uid: d1e1ff0d-dd7e-4872-b59f-b02da12af3fc spec: allocations: {} range: 192.168.2.224/28 [weliang@weliang Test]$
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 4.7.43 security 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-2022:0492