PersistentVolume ######################### 创建持久卷 ========== .. literalinclude:: /files/k8s/yamls/PersistentVolume0.yml :language: yaml :linenos: :emphasize-lines: 21 创建持久卷声明 ============== .. literalinclude:: /files/k8s/yamls/PersistentVolumeClaim0.yml :language: yaml :linenos: 被声明后 ============== pvc: .. literalinclude:: /files/k8s/yamls/PersistentVolumeClaim1.yml :language: yaml :linenos: :emphasize-lines: 7, 19-20 pv: .. literalinclude:: /files/k8s/yamls/PersistentVolume1.yml :language: yaml :linenos: :emphasize-lines: 4-5, 29 .. note:: pv 不指定 ns, 但 pvc 需要指定 ns 实操:: 1. 直接删除pv(注: 需要先删除 pvc) $ kubectl delete pv d-2z1 # 执行很长时间但没反应 $ kubectl get pv # d-2z1的STATUS变为Terminating NAME CAPACITY MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS d-2z1 20Gi RWO Delete Terminating default/nameB1 alicloud-disk-ssd d-2z2 20Gi RWO Delete Bound default/nameB0 alicloud-disk-ssd d-2z3 20Gi RWO Delete Bound default/name0 alicloud-disk-ssd d-2z4 20Gi RWO Delete Bound default/name1 alicloud-disk-ssd d-2z5 20Gi RWO Retain Bound default/nameA0 disk $> kubectl get pvc NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS name0 Bound d-2z1 20Gi RWO alicloud-disk-ssd name1 Bound d-2z2 20Gi RWO alicloud-disk-ssd nameB0 Bound d-2z3 20Gi RWO alicloud-disk-ssd nameB1 Bound d-2z4 20Gi RWO alicloud-disk-ssd nameA0 Bound d-2z5 20Gi RWO disk 2. 删除pv的RECLAIM POLICY为Delete的pvc $> kubectl delete pvc name0 $> kubectl delete pvc name1 $> kubectl get pvc # pvc删除成功 NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS nameB0 Bound d-2z3 20Gi RWO alicloud-disk-ssd nameB1 Bound d-2z4 20Gi RWO alicloud-disk-ssd nameA0 Bound d-2z5 20Gi RWO disk $ kubectl get pv # pv也同步删除成功（同步阿里云盘也删除成功） NAME CAPACITY MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS d-2z3 20Gi RWO Delete Bound default/name0 alicloud-disk-ssd d-2z4 20Gi RWO Delete Bound default/name1 alicloud-disk-ssd d-2z5 20Gi RWO Retain Bound default/nameA0 disk 3. 删除pv的RECLAIM POLICY为Retain的pvc $> kubectl delete pvc nameA0 $> kubectl get pvc # pvc删除成功 NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS name0 Bound d-2z3 20Gi RWO alicloud-disk-ssd name1 Bound d-2z4 20Gi RWO alicloud-disk-ssd $ kubectl get pv # pv没有被删除而是置为Released NAME CAPACITY MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS d-2z3 20Gi RWO Delete Bound default/name0 alicloud-disk-ssd d-2z4 20Gi RWO Delete Bound default/name1 alicloud-disk-ssd d-2z5 20Gi RWO Retain Released default/nameA0 disk 4. 手工指定删除pv $> kubectl delete pv d-2z5 $ kubectl get pv （同步阿里云盘未删除，需要手工删除） NAME CAPACITY MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS d-2z3 20Gi RWO Delete Bound default/name0 alicloud-disk-ssd d-2z4 20Gi RWO Delete Bound default/name1 alicloud-disk-ssd