第 5 章 使用 director Operator 创建 overcloud 节点

流程

1. 在工作站上创建名为 openstack-controller.yaml 的文件。包括 Controller 节点的资源规格。例如，由 3 个 Controller 节点组成的 control plane 规格如下：

   apiVersion: osp-director.openstack.org/v1beta2
   kind: OpenStackControlPlane
   metadata:
     name: overcloud
     namespace: openstack
   spec:
     openStackClientNetworks:
           - ctlplane
           - internal_api
           - external
     openStackClientStorageClass: host-nfs-storageclass
     passwordSecret: userpassword
     virtualMachineRoles:
       Controller:
         roleName: Controller
         roleCount: 3
         networks:
           - ctlplane
           - internal_api
           - external
           - tenant
           - storage
           - storage_mgmt
         cores: 12
         memory: 64
         rootDisk:
           diskSize: 500
           baseImageVolumeName: openstack-base-img
           # storageClass must support RWX to be able to live migrate VMs
           storageClass: host-nfs-storageclass
           storageAccessMode:  ReadWriteMany
           # When using OpenShift Virtualization with OpenShift Container Platform Container Storage,
           # specify RBD block mode persistent volume claims (PVCs) when creating virtual machine disks.
           # With virtual machine disks, RBD block mode volumes are more efficient and provide better
           # performance than Ceph FS or RBD filesystem-mode PVCs.
           # To specify RBD block mode PVCs, use the 'ocs-storagecluster-ceph-rbd' storage class and
           # VolumeMode: Block.
           storageVolumeMode: Filesystem
         # optional configure additional discs to be attached to the VMs,
         # need to be configured manually inside the VMs where to be used.
         additionalDisks:
           - name: datadisk
             diskSize: 500
             storageClass: host-nfs-storageclass
             storageAccessMode:  ReadWriteMany
             storageVolumeMode: Filesystem
     openStackRelease: "16.2"

   在资源规格中设置以下值：

   metadata.name

   设置为 overcloud control plane 的名称，即 overcloud。

   metadata.namespace

   设置为 director Operator 命名空间，即 openstack。

   spec

   为 control plane 设置配置。有关您可以在本节中使用的值的描述，请查看 openstackcontrolplane CRD 的自定义资源定义中的规格模式：

   $ oc describe crd openstackcontrolplane

   配置 control plane 规格后保存文件。

2. 创建 control plane：

   $ oc create -f openstack-controller.yaml -n openstack

   等待 OCP 创建与 OpenStackControlPlane 资源相关的资源。

   作为 OpenStackControlPlane 资源的一部分，director Operator 还会创建一个 OpenStackClient pod，您可以通过远程 shell 访问并运行 RHOSP 命令。

验证

1. 查看 control plane 的资源：

   $ oc get openstackcontrolplane/overcloud -n openstack

2. 查看 OpenStackVMSet 资源，以验证 control plane 虚拟机集的创建：

   $ oc get openstackvmsets -n openstack

3. 查看虚拟机资源以验证 OpenShift Virtualization 中的 control plane 虚拟机创建：

   $ oc get virtualmachines

4. 测试对 openstackclient remote shell 的访问：

   $ oc rsh -n openstack openstackclient