在证书轮转过程中，CMO 会更新 secret 和配置映射，这会触发受影响 pod 的自动重启。这是一个预期的行为，pod 会自动恢复。
以下示例显示了证书轮转过程中发生的事件：
oc get events -n openshift-monitoring
$oc get events -n openshift-monitoringLAST SEEN TYPE REASON OBJECT MESSAGE
2h39m Normal SecretUpdated deployment/cluster-monitoring-operator Updated Secret/grpc-tls -n openshift-monitoring because it changed
2h39m Normal SecretCreated deployment/cluster-monitoring-operator Created Secret/prometheus-user-workload-grpc-tls -n openshift-user-workload-monitoring because it was missing
2h39m Normal SecretCreated deployment/cluster-monitoring-operator Created Secret/thanos-querier-grpc-tls -n openshift-monitoring because it was missing
2h39m Normal SecretCreated deployment/cluster-monitoring-operator Created Secret/thanos-ruler-grpc-tls -n openshift-user-workload-monitoring because it was missing
2h39m Normal SecretCreated deployment/cluster-monitoring-operator Created Secret/prometheus-k8s-grpc-tls -n openshift-monitoring because it was missing
2h38m Warning FailedMount pod/prometheus-k8s-0 MountVolume.SetUp failed for volume "secret-grpc-tls" : secret "prometheus-k8s-grpc-tls" not found
2h39m Normal Created pod/prometheus-k8s-0 Created container kube-rbac-proxy-thanos
2h39m Normal Started pod/prometheus-k8s-0 Started container kube-rbac-proxy-thanos
2h39m Normal SuccessfulDelete statefulset/prometheus-k8s delete Pod prometheus-k8s-0 in StatefulSet prometheus-k8s successful
2h39m Normal SuccessfulCreate statefulset/prometheus-k8s create Pod prometheus-k8s-0 in StatefulSet prometheus-k8s successful
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