使用 Azure Kubernetes 机群管理器的资源策略来跨多个群集部署应用负载

2025-09-15

本文介绍如何使用 Azure Kubernetes 舰队管理器群集资源放置在集群群组中的多个群集上部署工作负载。

先决条件

如果没有 Azure 试用版订阅，请在开始前创建一个。
阅读资源传播概念概述，了解本文中使用的概念和术语。
需要包含一个中心群集和多个成员群集的舰队管理器。如果没有，请参阅使用 Azure CLI 创建 Azure Kubernetes 舰队管理器资源并加入成员群集。
必须在中心群集中适当标记成员群集，以匹配所需的选择条件。示例标签包括区域、环境、团队、可用性区域、节点可用性或想要的任何其他内容。
需要访问中心群集的 Kubernetes API。如果没有访问权限，请参阅访问 Azure Kubernetes 舰队管理器中心群集的 Kubernetes API。

使用 ClusterResourcePlacement 将资源放置在成员群集上

对象 ClusterResourcePlacement 在中心群集上创建，用于将资源传播到成员群集。它指定要传播的资源，以及选择成员群集时使用的放置策略。此示例演示如何使用 ClusterResourcePlacement 具有放置策略的对象 PickAll 将命名空间传播到成员群集。

有关详细信息，请参阅使用 Azure Kubernetes 舰队管理器群集资源放置进行资源放置和开源的 KubeFleet 文档。

Azure CLI
Azure 门户

创建要放置在成员群集上的命名空间：

kubectl create namespace my-namespace

创建对象 ClusterResourcePlacement 并应用于 Fleet Manager 中心群集。在以下示例中，使用命名为ClusterResourcePlacement的distribute-my-namespace，通过my-namespace放置策略将命名空间PickAll部署到所有成员群集。

apiVersion: placement.kubernetes-fleet.io/v1
kind: ClusterResourcePlacement
metadata:
  name: distribute-my-namespace
spec:
  resourceSelectors:
    - group: ""
      kind: Namespace
      version: v1          
      name: my-namespace
  policy:
    placementType: PickAll

使用创建的文件的名称代替 kubectl apply -f distribute-my-namespace.yaml，通过发出 distribute-my-namespace.yaml，将此应用到舰队管理器中心群集。

检查资源传播的进度：

kubectl get clusterresourceplacement distribute-my-namespace

输出应类似于以下示例：

NAME                       GEN   SCHEDULED   SCHEDULEDGEN   APPLIED   APPLIEDGEN   AGE
distribute-my-namespace    2     True        2              True      2            10s

查看放置对象的详细信息：

kubectl describe clusterresourceplacement distribute-my-namespace

输出应类似于以下示例：

Name:         distribute-my-namespace
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

在 Azure 门户中，转到 Fleet Manager 资源。
在服务菜单中的舰队资源下，选择资源放置>创建。

将占位符值替换为以下 YAML，然后选择“添加”。

apiVersion: placement.kubernetes-fleet.io/v1
kind: ClusterResourcePlacement
metadata:
  name: distribute-my-namespace
spec:
  resourceSelectors:
    - group: ""
      kind: Namespace
      version: v1          
      name: my-namespace
  policy:
    placementType: PickAll

请确认群集资源配置是否已成功创建。
要查看有关单个群集资源放置的更多详细信息，请从列表中选择它。
可以使用各个选项卡查看有关群集资源放置快照、绑定、工作和计划策略快照的其他详细信息。例如，选择“群集资源快照”选项卡。

如果不想再使用 ClusterResourcePlacement 对象，可以使用 kubectl delete 命令将其删除。以下示例删除名为 ClusterResourcePlacement 的 distribute-my-namespace 对象：

kubectl delete clusterresourceplacement distribute-my-namespace

若要了解有关资源传播的详细信息，请参阅以下资源：

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使用 Azure Kubernetes 机群管理器的资源策略来跨多个群集部署应用负载

先决条件

使用 ClusterResourcePlacement 将资源放置在成员群集上

清理资源

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