13.2.6. 只完成 control plane 集群更新

先决条件

• 已确认集群中运行的所有应用程序的 API 与 OpenShift Container Platform 的下一个 Y-stream 版本兼容。有关兼容性的详情，请参阅"在更新版本间验证集群 API 版本"。

流程

• 运行以下命令完成管理确认以启动集群更新：

  $ oc adm upgrade

  如果集群更新没有成功完成，则 Reason 和 Message 部分中提供了有关更新失败的更多详情。

  输出示例

  Cluster version is 4.15.45
  
  Upgradeable=False
  
    Reason: MultipleReasons
    Message: Cluster should not be upgraded between minor versions for multiple reasons: AdminAckRequired,ResourceDeletesInProgress
    * Kubernetes 1.29 and therefore OpenShift 4.16 remove several APIs which require admin consideration. Please see the knowledge article https://access.redhat.com/articles/7031404 for details and instructions.
    * Cluster minor level upgrades are not allowed while resource deletions are in progress; resources=PrometheusRule "openshift-kube-apiserver/kube-apiserver-recording-rules"
  
  ReleaseAccepted=False
  
    Reason: PreconditionChecks
    Message: Preconditions failed for payload loaded version="4.16.34" image="quay.io/openshift-release-dev/ocp-release@sha256:41bb08c560f6db5039ccdf242e590e8b23049b5eb31e1c4f6021d1d520b353b8": Precondition "ClusterVersionUpgradeable" failed because of "MultipleReasons": Cluster should not be upgraded between minor versions for multiple reasons: AdminAckRequired,ResourceDeletesInProgress
    * Kubernetes 1.29 and therefore OpenShift 4.16 remove several APIs which require admin consideration. Please see the knowledge article https://access.redhat.com/articles/7031404 for details and instructions.
    * Cluster minor level upgrades are not allowed while resource deletions are in progress; resources=PrometheusRule "openshift-kube-apiserver/kube-apiserver-recording-rules"
  
  Upstream is unset, so the cluster will use an appropriate default.
  Channel: eus-4.16 (available channels: candidate-4.15, candidate-4.16, eus-4.16, fast-4.15, fast-4.16, stable-4.15, stable-4.16)
  
  Recommended updates:
  
    VERSION     IMAGE
    4.16.34     quay.io/openshift-release-dev/ocp-release@sha256:41bb08c560f6db5039ccdf242e590e8b23049b5eb31e1c4f6021d1d520b353b8

  注意

  在本例中，链接的红帽知识库文章(准备升级到 OpenShift Container Platform 4.16)提供了有关验证不同版本之间的 API 兼容性的更多详情。

验证

• 运行以下命令验证更新：

  $ oc get configmap admin-acks -n openshift-config -o json | jq .data

  输出示例

  {
    "ack-4.14-kube-1.28-api-removals-in-4.15": "true",
    "ack-4.15-kube-1.29-api-removals-in-4.16": "true"
  }

  注意

  在本例中，集群从 4.14 版本更新至 4.15，然后在 Control Plane 中从 4.15 更新至 4.16。