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快速入门:将资源从 Azure Kubernetes 舰队管理器(舰队)中心群集传播到成员群集

本快速入门介绍如何将资源从 Azure Kubernetes 舰队管理器(舰队)中心群集传播到成员群集。

先决条件

如果没有 Azure 试用版订阅,请在开始前创建一个试用版订阅

使用 ClusterResourcePlacement API 将资源传播到成员群集

ClusterResourcePlacement API 对象用于将资源从中心群集传播到成员群集。 ClusterResourcePlacement API 对象指定要传播的资源,以及选择成员群集时使用的放置策略。 ClusterResourcePlacement API 对象是在中心群集中创建的,用于将资源传播到成员群集。 以下示例演示如何使用具有 PickAll 放置策略的 ClusterResourcePlacement API 对象将命名空间传播到成员群集。

有关详细信息,请参阅将 Kubernetes 资源从中心群集传播到成员群集开放源代码舰队文档

  1. 使用 kubectl create namespace 命令创建要放置在成员群集上的命名空间。 以下示例创建名为 my-namespace 的命名空间:

    kubectl create namespace my-namespace
    
  2. 在中心群集中创建 ClusterResourcePlacement API 对象,以将命名空间传播到成员群集,然后使用 kubectl apply -f 命令部署该命名空间。 以下示例 ClusterResourcePlacement 创建名为 crp 的对象,并使用具有 PickAll 放置策略的 my-namespace 命名空间将命名空间传播到所有成员群集:

    kubectl apply -f - <<EOF
    apiVersion: placement.kubernetes-fleet.io/v1
    kind: ClusterResourcePlacement
    metadata:
      name: crp
    spec:
      resourceSelectors:
        - group: ""
          kind: Namespace
          version: v1          
          name: my-namespace
      policy:
        placementType: PickAll
    EOF
    
  3. 使用 kubectl get clusterresourceplacement 命令检查资源传播的进度。 以下示例检查名为 crpClusterResourcePlacement 对象的状态:

    kubectl get clusterresourceplacement crp
    

    输出应类似于以下示例输出:

    NAME   GEN   SCHEDULED   SCHEDULEDGEN   APPLIED   APPLIEDGEN   AGE
    crp    2     True        2              True      2            10s
    
  4. 使用 kubectl describe crp 命令查看 crp 对象的详细信息。 以下示例介绍名为 crpClusterResourcePlacement 对象:

    kubectl describe clusterresourceplacement crp
    

    输出应类似于以下示例输出:

    Name:         crp
    Namespace:    
    Labels:       <none>
    Annotations:  <none>
    API Version:  placement.kubernetes-fleet.io/v1
    Kind:         ClusterResourcePlacement
    Metadata:
      Creation Timestamp:  2024-04-01T18:55:31Z
      Finalizers:
        kubernetes-fleet.io/crp-cleanup
        kubernetes-fleet.io/scheduler-cleanup
      Generation:        2
      Resource Version:  6949
      UID:               815b1d81-61ae-4fb1-a2b1-06794be3f986
    Spec:
      Policy:
        Placement Type:  PickAll
      Resource Selectors:
        Group:                 
        Kind:                  Namespace
        Name:                  my-namespace
        Version:               v1
      Revision History Limit:  10
      Strategy:
        Type:  RollingUpdate
    Status:
      Conditions:
        Last Transition Time:   2024-04-01T18:55:31Z
        Message:                found all the clusters needed as specified by the scheduling policy
        Observed Generation:    2
        Reason:                 SchedulingPolicyFulfilled
        Status:                 True
        Type:                   ClusterResourcePlacementScheduled
        Last Transition Time:   2024-04-01T18:55:36Z
        Message:                All 3 cluster(s) are synchronized to the latest resources on the hub cluster
        Observed Generation:    2
        Reason:                 SynchronizeSucceeded
        Status:                 True
        Type:                   ClusterResourcePlacementSynchronized
        Last Transition Time:   2024-04-01T18:55:36Z
        Message:                Successfully applied resources to 3 member clusters
        Observed Generation:    2
        Reason:                 ApplySucceeded
        Status:                 True
        Type:                   ClusterResourcePlacementApplied
      Observed Resource Index:  0
      Placement Statuses:
        Cluster Name:  membercluster1
        Conditions:
          Last Transition Time:  2024-04-01T18:55:31Z
          Message:               Successfully scheduled resources for placement in membercluster1 (affinity score: 0, topology spread score: 0): picked by scheduling policy
          Observed Generation:   2
          Reason:                ScheduleSucceeded
          Status:                True
          Type:                  ResourceScheduled
          Last Transition Time:  2024-04-01T18:55:36Z
          Message:               Successfully Synchronized work(s) for placement
          Observed Generation:   2
          Reason:                WorkSynchronizeSucceeded
          Status:                True
          Type:                  WorkSynchronized
          Last Transition Time:  2024-04-01T18:55:36Z
          Message:               Successfully applied resources
          Observed Generation:   2
          Reason:                ApplySucceeded
          Status:                True
          Type:                  ResourceApplied
        Cluster Name:            membercluster2
        Conditions:
          Last Transition Time:  2024-04-01T18:55:31Z
          Message:               Successfully scheduled resources for placement in membercluster2 (affinity score: 0, topology spread score: 0): picked by scheduling policy
          Observed Generation:   2
          Reason:                ScheduleSucceeded
          Status:                True
          Type:                  ResourceScheduled
          Last Transition Time:  2024-04-01T18:55:36Z
          Message:               Successfully Synchronized work(s) for placement
          Observed Generation:   2
          Reason:                WorkSynchronizeSucceeded
          Status:                True
          Type:                  WorkSynchronized
          Last Transition Time:  2024-04-01T18:55:36Z
          Message:               Successfully applied resources
          Observed Generation:   2
          Reason:                ApplySucceeded
          Status:                True
          Type:                  ResourceApplied
        Cluster Name:            membercluster3
        Conditions:
          Last Transition Time:  2024-04-01T18:55:31Z
          Message:               Successfully scheduled resources for placement in membercluster3 (affinity score: 0, topology spread score: 0): picked by scheduling policy
          Observed Generation:   2
          Reason:                ScheduleSucceeded
          Status:                True
          Type:                  ResourceScheduled
          Last Transition Time:  2024-04-01T18:55:36Z
          Message:               Successfully Synchronized work(s) for placement
          Observed Generation:   2
          Reason:                WorkSynchronizeSucceeded
          Status:                True
          Type:                  WorkSynchronized
          Last Transition Time:  2024-04-01T18:55:36Z
          Message:               Successfully applied resources
          Observed Generation:   2
          Reason:                ApplySucceeded
          Status:                True
          Type:                  ResourceApplied
      Selected Resources:
        Kind:     Namespace
        Name:     my-namespace
        Version:  v1
    Events:
      Type    Reason                     Age   From                                   Message
      ----    ------                     ----  ----                                   -------
      Normal  PlacementScheduleSuccess   108s  cluster-resource-placement-controller  Successfully scheduled the placement
      Normal  PlacementSyncSuccess       103s  cluster-resource-placement-controller  Successfully synchronized the placement
      Normal  PlacementRolloutCompleted  103s  cluster-resource-placement-controller  Resources have been applied to the selected clusters
    

清理资源

如果不再需要使用 ClusterResourcePlacement 对象,可以使用 kubectl delete 命令将其删除。 以下示例删除名为 crpClusterResourcePlacement 对象:

kubectl delete clusterresourceplacement crp

后续步骤

若要了解有关资源传播的详细信息,请参阅以下资源: