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在 VMware vSphere 上安装
10.4. 在 vSphere 上为集群指定多个主机组

10.4. 在 vSphere 上为集群指定多个主机组

您可以配置 infrastructures.config.openshift.io 配置资源，为在 VMware vSphere 实例上运行的 OpenShift Container Platform 集群指定多个主机组。如果您的 vSphere 实例在扩展集群配置中，且您的 ESXi 主机和存储分布到多个物理数据中心中，则需要此项。如果您还没有在安装时为 OpenShift Container Platform 集群配置主机组，或者使用额外的主机组更新 OpenShift Container Platform 集群。

重要

OpenShift zones 支持 vSphere 主机组只是一个技术预览功能。技术预览功能不受红帽产品服务等级协议（SLA）支持，且功能可能并不完整。红帽不推荐在生产环境中使用它们。这些技术预览功能可以使用户提早试用新的功能，并有机会在开发阶段提供反馈意见。

有关红帽技术预览功能支持范围的更多信息，请参阅技术预览功能支持范围。

先决条件

ESXi 主机分组到主机组中，它们通过 VM-host 关联性规则链接到对应的虚拟机(VM)组。详情请查看以下示例 govc 命令：

This example shows the correct configuration for a cluster with two host groups:
Create host groups:
Create VM groups:
Create VM-host affinity rules:
Add ESXi hosts to host groups:

# This example shows the correct configuration for a cluster with two host groups:

# Create host groups:
govc cluster.group.create -name <host_group_1> -host
govc cluster.group.create -name <host_group_2> -host

# Create VM groups:
govc cluster.group.create -name <vm_group_1> -vm
govc cluster.group.create -name <vm_group_2> -vm

# Create VM-host affinity rules:
govc cluster.rule.create -name <rule_1> -enable -vm-host -vm-group <vm_group_1> -host-affine-group <host_group_1>
govc cluster.rule.create -name <rule_2> -enable -vm-host -vm-group <vm_group_2> -host-affine-group <host_group_2>

# Add ESXi hosts to host groups:
govc cluster.group.change -name <host_group_1> <esxi_host_1_ip>
govc cluster.group.change -name <host_group_2> <esxi_host_2_ip>

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openshift-region 和 openshift-zone 标签类别在 vCenter 服务器上创建。
Compute 集群有来自 openshift-region 标签类别的标签。
主机组中的 ESXi 主机具有 openshift-zone 标签类别的标签。
Host.Inventory.EditCluster 特权在 vSphere vCenter 集群对象上被授予。
TechPreviewNoUpgrade 功能集已启用。如需更多信息，请参阅"使用功能门启用功能"。

流程

编辑 OpenShift Container Platform 集群的基础架构设置。

要将现有基础架构设置复制到文件中，请运行以下命令：

oc get infrastructures.config.openshift.io cluster -o yaml > <name_of_infrastructure_file>.yaml

$ oc get infrastructures.config.openshift.io cluster -o yaml > <name_of_infrastructure_file>.yaml

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编辑您的基础架构文件，使其包含 vSphere 集群中每个主机组的故障域。有关此配置示例，请参考以下 YAML 文件。确保将括号中的值（< >）替换为您的值：

apiVersion: config.openshift.io/v1
kind: Infrastructure
metadata:
  name: cluster
spec:
  cloudConfig:
    key: config
    name: cloud-provider-config
  platformSpec:
    type: VSphere
    vsphere:
      apiServerInternalIPs:
      - <internal_ip_of_api_server>
      failureDomains:
      - name: <unique_name_for_failure_domain_1>
        region: <cluster_1_region_tag>
        server: <vcenter_server_ip_address>
        zoneAffinity:
          type: HostGroup
          hostGroup:
            vmGroup: <name_of_vm_group_1>
            hostGroup: <name_of_host_group_1>
            vmHostRule: <name_of_vm_host_affinity_rule_1>
        regionAffinity:
          type: ComputeCluster
        topology:
          computeCluster: /<data_center_1>/host/<cluster_1>
          datacenter: <data_center_1>
          datastore: /<data_center_1>/datastore/<datastore_1>
          networks:
          - VM Network
          resourcePool: /<data_center_1>/host/<cluster_1>/Resources
          template: /<data_center_1>/vm/<vm_template>
        zone: <host_group_1_tag>
      - name: <unique_name_for_failure_domain_2>
        region: <cluster_1_region_tag>
        server: <vcenter_server_ip_address>
        zoneAffinity:
          type: HostGroup
          hostGroup:
            vmGroup: <name_of_vm_group_2>
            hostGroup: <name_of_host_group_2>
            vmHostRule: <name_of_vm_host_affinity_rule_2>
        regionAffinity:
          type: ComputeCluster
        topology:
          computeCluster: /<data_center_1>/host/<cluster_1>
          datacenter: <data_center_1>
          datastore: /<data_center_1>/datastore/<datastore_1>
          networks:
          - VM Network
          resourcePool: /<data_center_1>/host/<cluster_1>/Resources
          template: /<data_center_1>/vm/<vm_template>
        zone: <host_group_2_tag>
# ...

apiVersion: config.openshift.io/v1
kind: Infrastructure
metadata:
  name: cluster
spec:
  cloudConfig:
    key: config
    name: cloud-provider-config
  platformSpec:
    type: VSphere
    vsphere:
      apiServerInternalIPs:
      - <internal_ip_of_api_server>
      failureDomains:
      - name: <unique_name_for_failure_domain_1>
        region: <cluster_1_region_tag>
        server: <vcenter_server_ip_address>
        zoneAffinity:
          type: HostGroup
          hostGroup:
            vmGroup: <name_of_vm_group_1>
            hostGroup: <name_of_host_group_1>
            vmHostRule: <name_of_vm_host_affinity_rule_1>
        regionAffinity:
          type: ComputeCluster
        topology:
          computeCluster: /<data_center_1>/host/<cluster_1>
          datacenter: <data_center_1>
          datastore: /<data_center_1>/datastore/<datastore_1>
          networks:
          - VM Network
          resourcePool: /<data_center_1>/host/<cluster_1>/Resources
          template: /<data_center_1>/vm/<vm_template>
        zone: <host_group_1_tag>
      - name: <unique_name_for_failure_domain_2>
        region: <cluster_1_region_tag>
        server: <vcenter_server_ip_address>
        zoneAffinity:
          type: HostGroup
          hostGroup:
            vmGroup: <name_of_vm_group_2>
            hostGroup: <name_of_host_group_2>
            vmHostRule: <name_of_vm_host_affinity_rule_2>
        regionAffinity:
          type: ComputeCluster
        topology:
          computeCluster: /<data_center_1>/host/<cluster_1>
          datacenter: <data_center_1>
          datastore: /<data_center_1>/datastore/<datastore_1>
          networks:
          - VM Network
          resourcePool: /<data_center_1>/host/<cluster_1>/Resources
          template: /<data_center_1>/vm/<vm_template>
        zone: <host_group_2_tag>
# ...

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要使用这些更改对集群进行更新，请运行以下命令：
```
oc replace -f <name_of_infrastructure_file>.yaml
```
```
$ oc replace -f <name_of_infrastructure_file>.yaml
```
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通过完成以下步骤，使用新的故障域更新 ControlPlaneMachineSet 自定义资源(CR)：

运行以下命令来编辑 ControlPlaneMachineSet CR：

oc edit controlplanemachinesets.machine.openshift.io -n openshift-machine-api cluster

$ oc edit controlplanemachinesets.machine.openshift.io -n openshift-machine-api cluster

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编辑 failureDomains 参数，如下例所示：

spec:
  replicas: 3
  selector:
    matchLabels:
      machine.openshift.io/cluster-api-cluster: jdoe3-whb8l
      machine.openshift.io/cluster-api-machine-role: master
      machine.openshift.io/cluster-api-machine-type: master
  state: Active
  strategy:
    type: RollingUpdate
  template:
    machineType: machines_v1beta1_machine_openshift_io
    machines_v1beta1_machine_openshift_io:
      failureDomains:
        platform: VSphere
        vsphere:
        - name: <failure_domain_1_name>
        - name: <failure_domain_2_name>
# ...

spec:
  replicas: 3
  selector:
    matchLabels:
      machine.openshift.io/cluster-api-cluster: jdoe3-whb8l
      machine.openshift.io/cluster-api-machine-role: master
      machine.openshift.io/cluster-api-machine-type: master
  state: Active
  strategy:
    type: RollingUpdate
  template:
    machineType: machines_v1beta1_machine_openshift_io
    machines_v1beta1_machine_openshift_io:
      failureDomains:
        platform: VSphere
        vsphere:
        - name: <failure_domain_1_name>
        - name: <failure_domain_2_name>
# ...

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在继续操作前，验证您的 control plane 节点已完成更新。要做到这一点，请运行以下命令：
```
oc get controlplanemachinesets.machine.openshift.io -n openshift-machine-api
```
```
$ oc get controlplanemachinesets.machine.openshift.io -n openshift-machine-api
```
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为您的故障域创建新的 MachineSet CR。

要检索现有 MachineSet CR 的配置以用作模板，请运行以下命令：

oc get machinesets.machine.openshift.io -n openshift-machine-api <existing_machine_set> -o yaml > machineset-<failure_domain_name>.yaml

$ oc get machinesets.machine.openshift.io -n openshift-machine-api <existing_machine_set> -o yaml > machineset-<failure_domain_name>.yaml

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根据需要复制模板，为基础架构文件中定义的每个故障域创建 MachineSet CR 文件。请参考以下示例：

apiVersion: machine.openshift.io/v1beta1
kind: MachineSet
metadata:
  labels:
    machine.openshift.io/cluster-api-cluster: <infrastructure_id>
  name: <machineset_name>
  namespace: openshift-machine-api
spec:
  replicas: 0
  selector:
    matchLabels:
      machine.openshift.io/cluster-api-cluster: <infrastructure_id>
      machine.openshift.io/cluster-api-machineset: <machineset_name>
  template:
    metadata:
      labels:
        machine.openshift.io/cluster-api-cluster: <infrastructure_id>
        machine.openshift.io/cluster-api-machine-role: worker
        machine.openshift.io/cluster-api-machine-type: worker
        machine.openshift.io/cluster-api-machineset: <machineset_name>
    spec:
      lifecycleHooks: {}
      metadata: {}
      providerSpec:
        value:
          apiVersion: machine.openshift.io/v1beta1
          credentialsSecret:
            name: vsphere-cloud-credentials
          diskGiB: <disk_GiB>
          kind: VSphereMachineProviderSpec
          memoryMiB: <memory_in_MiB>
          metadata:
            creationTimestamp: null
          network:
            devices:
            - networkName: VM Network
          numCPUs: <number_of_cpus>
          numCoresPerSocket: <number_of_cores_per_socket>
          snapshot: ""
          template: <template_name>
          userDataSecret:
            name: worker-user-data
          workspace:
            datacenter: <data_center_1>
            datastore: /<data_center_1>/datastore/<datastore_1>
            folder: /<data_center_1>/vm/<folder>
            resourcePool: /<data_center_1>/host/<cluster_1>/Resources
            server: <server_ip_address>
            vmGroup: <name_of_vm_group_1>
# ...

apiVersion: machine.openshift.io/v1beta1
kind: MachineSet
metadata:
  labels:
    machine.openshift.io/cluster-api-cluster: <infrastructure_id>
  name: <machineset_name>
  namespace: openshift-machine-api
spec:
  replicas: 0
  selector:
    matchLabels:
      machine.openshift.io/cluster-api-cluster: <infrastructure_id>
      machine.openshift.io/cluster-api-machineset: <machineset_name>
  template:
    metadata:
      labels:
        machine.openshift.io/cluster-api-cluster: <infrastructure_id>
        machine.openshift.io/cluster-api-machine-role: worker
        machine.openshift.io/cluster-api-machine-type: worker
        machine.openshift.io/cluster-api-machineset: <machineset_name>
    spec:
      lifecycleHooks: {}
      metadata: {}
      providerSpec:
        value:
          apiVersion: machine.openshift.io/v1beta1
          credentialsSecret:
            name: vsphere-cloud-credentials
          diskGiB: <disk_GiB>
          kind: VSphereMachineProviderSpec
          memoryMiB: <memory_in_MiB>
          metadata:
            creationTimestamp: null
          network:
            devices:
            - networkName: VM Network
          numCPUs: <number_of_cpus>
          numCoresPerSocket: <number_of_cores_per_socket>
          snapshot: ""
          template: <template_name>
          userDataSecret:
            name: worker-user-data
          workspace:
            datacenter: <data_center_1>
            datastore: /<data_center_1>/datastore/<datastore_1>
            folder: /<data_center_1>/vm/<folder>
            resourcePool: /<data_center_1>/host/<cluster_1>/Resources
            server: <server_ip_address>
            vmGroup: <name_of_vm_group_1>
# ...

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对于每个 MachineSet CR 文件，运行以下命令：
```
oc create -f <name_of_machine_set_file>.yaml
```
```
$ oc create -f <name_of_machine_set_file>.yaml
```
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返回顶部

10.4. 在 vSphere 上为集群指定多个主机组

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