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5.3.

5.3.1.
링크 복사

중요

주의

참고

5.3.2.
링크 복사

5.3.2.1.
링크 복사

주의

5.3.2.2.
링크 복사

참고

중요

중요

  2. 중요

  4. 참고

    2. $ sudo mv -v /etc/kubernetes/manifests/etcd-pod.yaml /tmp
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    3. $ sudo crictl ps | grep etcd | egrep -v "operator|etcd-guard"
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    4. $ sudo mv -v /etc/kubernetes/manifests/kube-apiserver-pod.yaml /tmp
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    5. $ sudo crictl ps | grep kube-apiserver | egrep -v "operator|guard"
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    6. $ sudo mv -v /etc/kubernetes/manifests/kube-controller-manager-pod.yaml /tmp
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    7. $ sudo crictl ps | grep kube-controller-manager | egrep -v "operator|guard"
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    8. $ sudo mv -v /etc/kubernetes/manifests/kube-scheduler-pod.yaml /tmp
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    9. $ sudo crictl ps | grep kube-scheduler | egrep -v "operator|guard"
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    10. $ sudo mv -v /var/lib/etcd/ /tmp
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      1. $ sudo mv -v /etc/kubernetes/manifests/keepalived.yaml /tmp
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      2. $ sudo crictl ps --name keepalived
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      3. $ ip -o address | egrep '<api_vip>|<ingress_vip>'
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      4. $ sudo ip address del <reported_vip> dev <reported_vip_device>
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  6. $ ip -o address | grep <api_vip>
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  7. 작은 정보

  8. $ sudo -E /usr/local/bin/cluster-restore.sh /home/core/assets/backup
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    ...stopping kube-scheduler-pod.yaml
...stopping kube-controller-manager-pod.yaml
...stopping etcd-pod.yaml
...stopping kube-apiserver-pod.yaml
Waiting for container etcd to stop
.complete
Waiting for container etcdctl to stop
.............................complete
Waiting for container etcd-metrics to stop
complete
Waiting for container kube-controller-manager to stop
complete
Waiting for container kube-apiserver to stop
..........................................................................................complete
Waiting for container kube-scheduler to stop
complete
Moving etcd data-dir /var/lib/etcd/member to /var/lib/etcd-backup
starting restore-etcd static pod
starting kube-apiserver-pod.yaml
static-pod-resources/kube-apiserver-pod-7/kube-apiserver-pod.yaml
starting kube-controller-manager-pod.yaml
static-pod-resources/kube-controller-manager-pod-7/kube-controller-manager-pod.yaml
starting kube-scheduler-pod.yaml
static-pod-resources/kube-scheduler-pod-8/kube-scheduler-pod.yaml
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    참고

    1. $ oc get nodes -w
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      NAME                STATUS  ROLES          AGE     VERSION
host-172-25-75-28   Ready   master         3d20h   v1.29.4
host-172-25-75-38   Ready   infra,worker   3d20h   v1.29.4
host-172-25-75-40   Ready   master         3d20h   v1.29.4
host-172-25-75-65   Ready   master         3d20h   v1.29.4
host-172-25-75-74   Ready   infra,worker   3d20h   v1.29.4
host-172-25-75-79   Ready   worker         3d20h   v1.29.4
host-172-25-75-86   Ready   worker         3d20h   v1.29.4
host-172-25-75-98   Ready   infra,worker   3d20h   v1.29.4
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    2. $  ssh -i <ssh-key-path> core@<master-hostname>
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      sh-4.4# pwd
/var/lib/kubelet/pki
sh-4.4# ls
kubelet-client-2022-04-28-11-24-09.pem  kubelet-server-2022-04-28-11-24-15.pem
kubelet-client-current.pem              kubelet-server-current.pem
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    1. $ sudo systemctl restart kubelet.service
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  11. 참고

    1. $ oc get csr
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      NAME        AGE    SIGNERNAME                                    REQUESTOR                                                                   CONDITION
csr-2s94x   8m3s   kubernetes.io/kubelet-serving                 system:node:<node_name>                                                     Pending
      1 
      
csr-4bd6t   8m3s   kubernetes.io/kubelet-serving                 system:node:<node_name>                                                     Pending
      2 
      
csr-4hl85   13m    kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending
      3 
      
csr-zhhhp   3m8s   kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending
      4 
      
...
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      1 2
      3 4 

    2. $ oc describe csr <csr_name>
      1
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      1 

    3. $ oc adm certificate approve <csr_name>
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    4. $ oc adm certificate approve <csr_name>
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    1. $ sudo crictl ps | grep etcd | egrep -v "operator|etcd-guard"
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      3ad41b7908e32       36f86e2eeaaffe662df0d21041eb22b8198e0e58abeeae8c743c3e6e977e8009                                                         About a minute ago   Running             etcd                                          0                   7c05f8af362f0
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    2. $ oc -n openshift-etcd get pods -l k8s-app=etcd
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      NAME                                             READY   STATUS      RESTARTS   AGE
etcd-ip-10-0-143-125.ec2.internal                1/1     Running     1          2m47s
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    1. $ oc -n openshift-ovn-kubernetes delete pod -l app=ovnkube-control-plane
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    2. $ oc -n openshift-ovn-kubernetes get pod -l app=ovnkube-control-plane
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  14. 중요

    참고

    1. $ sudo rm -f /var/lib/ovn-ic/etc/*.db
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    2. $ sudo systemctl restart ovs-vswitchd ovsdb-server
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    3. $ oc -n openshift-ovn-kubernetes delete pod -l app=ovnkube-node --field-selector=spec.nodeName==<node>
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    4. $ oc -n openshift-ovn-kubernetes get pod -l app=ovnkube-node --field-selector=spec.nodeName==<node>
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      참고

    • 주의

    • 주의

      1. $ oc get machines -n openshift-machine-api -o wide
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        NAME                                        PHASE     TYPE        REGION      ZONE         AGE     NODE                           PROVIDERID                              STATE
clustername-8qw5l-master-0                  Running   m4.xlarge   us-east-1   us-east-1a   3h37m   ip-10-0-131-183.ec2.internal   aws:///us-east-1a/i-0ec2782f8287dfb7e   stopped
        1 
        
clustername-8qw5l-master-1                  Running   m4.xlarge   us-east-1   us-east-1b   3h37m   ip-10-0-143-125.ec2.internal   aws:///us-east-1b/i-096c349b700a19631   running
clustername-8qw5l-master-2                  Running   m4.xlarge   us-east-1   us-east-1c   3h37m   ip-10-0-154-194.ec2.internal    aws:///us-east-1c/i-02626f1dba9ed5bba  running
clustername-8qw5l-worker-us-east-1a-wbtgd   Running   m4.large    us-east-1   us-east-1a   3h28m   ip-10-0-129-226.ec2.internal   aws:///us-east-1a/i-010ef6279b4662ced   running
clustername-8qw5l-worker-us-east-1b-lrdxb   Running   m4.large    us-east-1   us-east-1b   3h28m   ip-10-0-144-248.ec2.internal   aws:///us-east-1b/i-0cb45ac45a166173b   running
clustername-8qw5l-worker-us-east-1c-pkg26   Running   m4.large    us-east-1   us-east-1c   3h28m   ip-10-0-170-181.ec2.internal   aws:///us-east-1c/i-06861c00007751b0a   running
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        1 

      2. $ oc delete machine -n openshift-machine-api clustername-8qw5l-master-0
        1
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        1 

      3. $ oc get machines -n openshift-machine-api -o wide
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        NAME                                        PHASE          TYPE        REGION      ZONE         AGE     NODE                           PROVIDERID                              STATE
clustername-8qw5l-master-1                  Running        m4.xlarge   us-east-1   us-east-1b   3h37m   ip-10-0-143-125.ec2.internal   aws:///us-east-1b/i-096c349b700a19631   running
clustername-8qw5l-master-2                  Running        m4.xlarge   us-east-1   us-east-1c   3h37m   ip-10-0-154-194.ec2.internal    aws:///us-east-1c/i-02626f1dba9ed5bba  running
clustername-8qw5l-master-3                  Provisioning   m4.xlarge   us-east-1   us-east-1a   85s     ip-10-0-173-171.ec2.internal    aws:///us-east-1a/i-015b0888fe17bc2c8  running
        1 
        
clustername-8qw5l-worker-us-east-1a-wbtgd   Running        m4.large    us-east-1   us-east-1a   3h28m   ip-10-0-129-226.ec2.internal   aws:///us-east-1a/i-010ef6279b4662ced   running
clustername-8qw5l-worker-us-east-1b-lrdxb   Running        m4.large    us-east-1   us-east-1b   3h28m   ip-10-0-144-248.ec2.internal   aws:///us-east-1b/i-0cb45ac45a166173b   running
clustername-8qw5l-worker-us-east-1c-pkg26   Running        m4.large    us-east-1   us-east-1c   3h28m   ip-10-0-170-181.ec2.internal   aws:///us-east-1c/i-06861c00007751b0a   running
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        1 

  16. $ oc patch etcd/cluster --type=merge -p '{"spec": {"unsupportedConfigOverrides": {"useUnsupportedUnsafeNonHANonProductionUnstableEtcd": true}}}'
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  17. $ export KUBECONFIG=/etc/kubernetes/static-pod-resources/kube-apiserver-certs/secrets/node-kubeconfigs/localhost-recovery.kubeconfig
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  18. $ oc patch etcd cluster -p='{"spec": {"forceRedeploymentReason": "recovery-'"$( date --rfc-3339=ns )"'"}}' --type=merge
    1
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    1 

  19. $ oc patch etcd/cluster --type=merge -p '{"spec": {"unsupportedConfigOverrides": null}}'
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  20. $ oc get etcd/cluster -oyaml
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  21. $ oc get etcd -o=jsonpath='{range .items[0].status.conditions[?(@.type=="NodeInstallerProgressing")]}{.reason}{"\n"}{.message}{"\n"}'
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    AllNodesAtLatestRevision
3 nodes are at revision 7
    1
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    1 

    1. $ oc patch kubeapiserver cluster -p='{"spec": {"forceRedeploymentReason": "recovery-'"$( date --rfc-3339=ns )"'"}}' --type=merge
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      $ oc get kubeapiserver -o=jsonpath='{range .items[0].status.conditions[?(@.type=="NodeInstallerProgressing")]}{.reason}{"\n"}{.message}{"\n"}'
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      AllNodesAtLatestRevision
3 nodes are at revision 7
      1
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      1 

    2. $ oc patch kubecontrollermanager cluster -p='{"spec": {"forceRedeploymentReason": "recovery-'"$( date --rfc-3339=ns )"'"}}' --type=merge
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      $ oc get kubecontrollermanager -o=jsonpath='{range .items[0].status.conditions[?(@.type=="NodeInstallerProgressing")]}{.reason}{"\n"}{.message}{"\n"}'
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      AllNodesAtLatestRevision
3 nodes are at revision 7
      1
      Copy to Clipboard Toggle word wrap
      1 

    3. $ oc patch kubescheduler cluster -p='{"spec": {"forceRedeploymentReason": "recovery-'"$( date --rfc-3339=ns )"'"}}' --type=merge
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      $ oc get kubescheduler -o=jsonpath='{range .items[0].status.conditions[?(@.type=="NodeInstallerProgressing")]}{.reason}{"\n"}{.message}{"\n"}'
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      AllNodesAtLatestRevision
3 nodes are at revision 7
      1
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      1 

  23. $ oc adm wait-for-stable-cluster
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  24. $ oc -n openshift-etcd get pods -l k8s-app=etcd
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    etcd-ip-10-0-143-125.ec2.internal                2/2     Running     0          9h
etcd-ip-10-0-154-194.ec2.internal                2/2     Running     0          9h
etcd-ip-10-0-173-171.ec2.internal                2/2     Running     0          9h
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참고

$ export KUBECONFIG=<installation_directory>/auth/kubeconfig
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$ oc whoami
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5.3.2.4.
링크 복사

중요

5.3.3.
링크 복사

5.3.3.1.
링크 복사

  1. $ oc get csr
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    NAME        AGE    SIGNERNAME                                    REQUESTOR                                                                   CONDITION
csr-2s94x   8m3s   kubernetes.io/kubelet-serving                 system:node:<node_name>                                                     Pending
    1 
    
csr-4bd6t   8m3s   kubernetes.io/kubelet-serving                 system:node:<node_name>                                                     Pending
csr-4hl85   13m    kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending
    2 
    
csr-zhhhp   3m8s   kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending
...
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    1
    2 

  2. $ oc describe csr <csr_name>
    1
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    1 

  3. $ oc adm certificate approve <csr_name>
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  4. $ oc adm certificate approve <csr_name>
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