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  1. Red Hat Advanced Cluster Management
  2. ACM-5110

klusterlet containers are not pinned to mgmt cores - no WLP annotation

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    Description

      (FYI, originally posted as https://issues.redhat.com/browse/OCPBUGS-11604)

      Description of problem:

      klusterlet container in pod klusterlet-xxxxx is not pinned to reserved management cores.

      Version-Release number of selected component (if applicable):

      oc get clusterversion
      NAME      VERSION       AVAILABLE   PROGRESSING   SINCE   STATUS
      version   4.13.0-rc.2   True        False         5d4h    Cluster version is 4.13.0-rc.2
      

      How reproducible:

      Always

      Steps to Reproduce:

      1. Deploy SNO via ZTP with workload partitioning enabled
      2. Check mgmt pods affinity

      Actual results:

      pods do not have workload partitioning annotation, and are not pinned to mgmt cores

      The klusterlet pod is QoS Burstable which seems to be change from previous OCP 4.13 builds.

      Expected results:

      All management pods should be pinned to reserved cores

      Pod should be annotated with:

      target.workload.openshift.io/management: '{"effect":"PreferredDuringScheduling"}'

      Additional info:

      Additional info:

      klusterlet-xxx pod annotations
      metadata:
        annotations:
          k8s.ovn.org/pod-networks: '{"default":{"ip_addresses":["10.128.0.94/23"],"mac_address":"0a:58:0a:80:00:5e","gateway_ips":["10.128.0.1"],"ip_address":"10.128.0.94/23","gateway_ip":"10.128.0.1"}}'
          k8s.v1.cni.cncf.io/network-status: |-
            [{
                "name": "ovn-kubernetes",
                "interface": "eth0",
                "ips": [
                    "10.128.0.94"
                ],
                "mac": "0a:58:0a:80:00:5e",
                "default": true,
                "dns": {}
            }]
          openshift.io/scc: restricted-v2
          seccomp.security.alpha.kubernetes.io/pod: runtime/default
          workload.openshift.io/warning: skip pod CPUs requests modifications because pod
            container has both CPU limit and request
      
      ###
      Automation test result
      
      SNO management workload partitioning
      
        should have management pods pinned to reserved cpus
      
      Test result
        END STEP: Checking cpuset for all running containers via crictl inspect on container host - /home/kni/dgonyier/cnf-gotests/test/ran/workloadpartitioning/tests/workload_partitioning.go:85 @ 04/10/23 15:26:51.378 (973ms)
        [FAILED] Expected
            <[]ranwphelper.ContainerInfo | len:4, cap:4>: [
      
                {
                    Name: "klusterlet",
                    Cpus: "2-55,58-111",
                    Namespace: "open-cluster-management-agent",
                    PodName: "klusterlet-7bf7dd5b55-k2wxx",
                    Shares: 51,
                    Pid: 22356,
                },
            ]
        to be empty
      

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              leyan@redhat.com Le Yang
              rhn-support-dgonyier Dwaine Gonyier
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              Dates

                Created:
                Updated:
                Resolved: