6.4.2. 将数据恢复到新 PVC
下列步骤假定已创建新的 pvc
。
流程
覆盖当前定义的
claim-name
:$ oc set volume dc/demo --add --name=persistent-volume \ --type=persistentVolumeClaim --claim-name=filestore \ --mount-path=/opt/app-root/src/uploaded --overwrite
验证 pod 是否在使用新 PVC:
$ oc describe dc/demo Name: demo Namespace: test Created: 3 hours ago Labels: app=demo Annotations: openshift.io/generated-by=OpenShiftNewApp Latest Version: 3 Selector: app=demo,deploymentconfig=demo Replicas: 1 Triggers: Config, Image(demo@latest, auto=true) Strategy: Rolling Template: Labels: app=demo deploymentconfig=demo Annotations: openshift.io/container.demo.image.entrypoint=["container-entrypoint","/bin/sh","-c","$STI_SCRIPTS_PATH/usage"] openshift.io/generated-by=OpenShiftNewApp Containers: demo: Image: docker-registry.default.svc:5000/test/demo@sha256:0a9f2487a0d95d51511e49d20dc9ff6f350436f935968b0c83fcb98a7a8c381a Port: 8080/TCP Volume Mounts: /opt/app-root/src/uploaded from persistent-volume (rw) Environment Variables: <none> Volumes: persistent-volume: Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace) *ClaimName: filestore* ReadOnly: false ...omitted...
现在,部署配置使用新的
pvc
,运行oc rsync
将文件放在新的pvc
中:$ oc rsync uploaded demo-3-2b8gs:/opt/app-root/src/ sending incremental file list uploaded/ uploaded/ocp_sop.txt uploaded/lost+found/ sent 181 bytes received 39 bytes 146.67 bytes/sec total size is 32 speedup is 0.15
使用
oc rsh
连接到 pod 并查看目录的内容,验证该文件是否在 pod 上恢复:$ oc rsh demo-3-2b8gs sh-4.2$ ls /opt/app-root/src/uploaded/ lost+found ocp_sop.txt