使用kubectl部署使用对象存储卷的工作负载

操作场景

对象存储卷创建或导入CCE后，可以在工作负载中挂载对象存储卷。

操作步骤

1. 执行如下命令，配置名为“obs-pod-example.yaml”的创建Pod的yaml文件。

   touch obs-pod-example.yaml

   vi obs-pod-example.yaml

   在无状态工作负载中基于pvc共享式使用对象存储示例：

   apiVersion: extensions/v1beta1 
   kind: Deployment 
   metadata: 
     name: obs-pod-example                        # 工作负载名称
     namespace: default 
   spec: 
     replicas: 1 
     selector: 
       matchLabels: 
         app: obs-pod-example 
     template: 
       metadata: 
         labels: 
           app: obs-pod-example 
       spec: 
         containers: 
         - image: nginx 
           name: container-0 
           volumeMounts: 
           - mountPath: /tmp                       # 挂载路径
             name: pvc-obs-example 
         restartPolicy: Always 
         volumes: 
         - name: pvc-obs-example  
           persistentVolumeClaim: 
             claimName: pvc-obs-auto-example       # PVC名称

   其中：

   • name：创建的Pod名称。
   • app：Pod工作负载名称。
   • mountPath：容器内挂载路径。
   • “spec.template.spec.containers.volumeMounts.name”和 “spec.template.spec.volumes.name”有映射关系，必须保持一致。

   在有状态工作负载中基于PVCTemplate独占式使用对象存储。

   1.15及以上版本的集群，yaml文件配置示例：

   apiVersion: apps/v1
   kind: StatefulSet
   metadata:
     name: deploy-obs-standard-in
     namespace: default
     generation: 1
     labels:
       appgroup: ''
     annotations:
       container.io/container-0: https://console.huaweicloud.com/swr/dockerimage/nginx.png
       description: ''
   spec:
     replicas: 1
     selector:
       matchLabels:
         app: deploy-obs-standard-in
     template:
       metadata:
         labels:
           app: deploy-obs-standard-in
         annotations:
           metrics.alpha.kubernetes.io/custom-endpoints: '[{"api":"","path":"","port":"","names":""}]'
           pod.alpha.kubernetes.io/initialized: 'true'
       spec:
         containers:
           - name: container-0
             image: 'nginx:1.12-alpine-perl'
             env:
               - name: PAAS_APP_NAME
                 value: deploy-obs-standard-in
               - name: PAAS_NAMESPACE
                 value: default
               - name: PAAS_PROJECT_ID
                 value: a2cd8e998dca42e98a41f596c636dbda
             resources: {}
             volumeMounts:
               - name: obs-bs-standard-mountoptionpvc
                 mountPath: /tmp
             terminationMessagePath: /dev/termination-log
             terminationMessagePolicy: File
             imagePullPolicy: IfNotPresent
         restartPolicy: Always
         terminationGracePeriodSeconds: 30
         dnsPolicy: ClusterFirst
         securityContext: {}
         imagePullSecrets:
           - name: default-secret
         affinity: {}
         schedulerName: default-scheduler
     volumeClaimTemplates:
       - metadata:
           name: obs-bs-standard-mountoptionpvc
           namespace: default
           annotations:
             everest.io/obs-volume-type: STANDARD
         spec:
           accessModes:
             - ReadWriteMany
           resources:
             requests:
               storage: 1Gi
           storageClassName: csi-obs
     serviceName: wwww
     podManagementPolicy: OrderedReady
     updateStrategy:
       type: RollingUpdate
     revisionHistoryLimit: 10

   其中:

   • name：创建的工作负载名称。
   • image：工作负载的镜像。
   • mountPath：容器内挂载路径，示例中挂载到“/tmp”路径。
   • serviceName：工作负载对应的服务，服务创建过程请参见创建有状态负载(StatefulSet)。
   • “spec.template.spec.containers.volumeMounts.name ”和 “spec.volumeClaimTemplates.metadata.name”有映射关系，必须保持一致。
   1.13及之前版本示例：

   apiVersion: apps/v1
   kind: StatefulSet
   
   metadata:
     name: deploy-obs-standard-in
     namespace: default
     generation: 1
     labels:
       appgroup: ''
     annotations:
       container.io/container-0: https://console.huaweicloud.com/swr/dockerimage/nginx.png
       description: ''
   spec:
     replicas: 1
     selector:
       matchLabels:
         app: deploy-obs-standard-in
     template:
       metadata:
         labels:
           app: deploy-obs-standard-in
         annotations:
           metrics.alpha.kubernetes.io/custom-endpoints: '[{"api":"","path":"","port":"","names":""}]'
           pod.alpha.kubernetes.io/initialized: 'true'
       spec:
         containers:
           - name: container-0
             image: 'nginx:1.12-alpine-perl'
             env:
               - name: PAAS_APP_NAME
                 value: deploy-obs-standard-in
               - name: PAAS_NAMESPACE
                 value: default
               - name: PAAS_PROJECT_ID
                 value: a2cd8e998dca42e98a41f596c636dbda
             resources: {}
             volumeMounts:
               - name: obs-bs-standard-mountoptionpvc
                 mountPath: /tmp
             terminationMessagePath: /dev/termination-log
             terminationMessagePolicy: File
             imagePullPolicy: IfNotPresent
         restartPolicy: Always
         terminationGracePeriodSeconds: 30
         dnsPolicy: ClusterFirst
         securityContext: {}
         imagePullSecrets:
           - name: default-secret
         affinity: {}
         schedulerName: default-scheduler
     volumeClaimTemplates:
       - metadata:
           name: obs-bs-standard-mountoptionpvc
           annotations:
             volume.beta.kubernetes.io/storage-class: obs-standard
             volume.beta.kubernetes.io/storage-provisioner: flexvolume-huawei.com/fuxiobs
   
         spec:
           accessModes:
             - ReadWriteMany
           resources:
             requests:
               storage: 1Gi
     serviceName: wwww
     podManagementPolicy: OrderedReady
     updateStrategy:
       type: RollingUpdate
     revisionHistoryLimit: 10

   其中：

   • name：创建的工作负载名称。
   • image：工作负载的镜像。
   • mountPath：容器内挂载路径，示例中挂载到“/tmp”路径。
   • serviceName：工作负载对应的服务，服务创建过程请参见创建有状态负载(StatefulSet)。
   • “spec.template.spec.containers.volumeMounts.name ”和 “spec.volumeClaimTemplates.metadata.name”有映射关系，必须保持一致。

2. 执行如下命令创建Pod。

   kubectl create -f obs-pod-example.yaml

   创建完成后，在CCE界面“存储管理 > 对象存储卷”中单击PVC名称，在PVC详情页面可查看对象存储服务和PVC的绑定关系。