====== Persistent Volumes at AWS ======

===== StorageClass =====

  $ kubectl get storageclass
  NAME            PROVISIONER             AGE
  default         kubernetes.io/aws-ebs   20h
  gp2 (default)   kubernetes.io/aws-ebs   20h

===== PersistentVolume =====

Create volume at AWS and get volume ID.

  $ cat volume-aws.yaml
  apiVersion: v1
  kind: PersistentVolume
  metadata:
    name: mysql-pv
    labels:
      type: amazonEBS
  spec:
    capacity:
      storage: 10Gi
    accessModes:
    - ReadWriteOnce
    awsElasticBlockStore:
      fsType: ext4
      volumeID: vol-01df22dd5bb1048ca
    storageClassName: gp2

  $ kubectl get pv
  NAME       CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS      CLAIM     STORAGECLASS   REASON    AGE
  mysql-pv   10Gi       RWO            Retain           Available             gp2                      3m

  $ kubectl describe pv mysql-pv
  Name:            mysql-pv
  Labels:          failure-domain.beta.kubernetes.io/region=us-east-1
                   failure-domain.beta.kubernetes.io/zone=us-east-1a
                   type=amazonEBS
  Annotations:     kubectl.kubernetes.io/last-applied-configuration={"apiVersion":"v1","kind":"PersistentVolume","metadata":{"annotations":{},"labels":{"type":"amazonEBS"},"name":"mysql-pv","namespace":""},"spec":{"acce...
  Finalizers:      [kubernetes.io/pv-protection]
  StorageClass:    gp2
  Status:          Available
  Claim:
  Reclaim Policy:  Retain
  Access Modes:    RWO
  Capacity:        10Gi
  Node Affinity:   <none>
  Message:
  Source:
      Type:       AWSElasticBlockStore (a Persistent Disk resource in AWS)
      VolumeID:   vol-01df22dd5bb1048ca
      FSType:     ext4
      Partition:  0
      ReadOnly:   false
  Events:         <none>

===== PersistentVolumeClaim =====

  $ cat volume-aws-claim.yaml
  apiVersion: v1
  kind: PersistentVolumeClaim
  metadata:
    name: mysql-pvc
    labels:
      type: amazonEBS
  spec:
    accessModes:
      - ReadWriteOnce
    resources:
      requests:
        storage: 10Gi
    volumeName: mysql-pv

  $ kubectl get pvc
  NAME        STATUS    VOLUME     CAPACITY   ACCESS MODES   STORAGECLASS   AGE
  mysql-pvc   Bound     mysql-pv   10Gi       RWO            gp2            1m

  $ kubectl get pv
  NAME       CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS    CLAIM            STORAGECLASS   REASON    AGE
  mysql-pv   10Gi       RWO            Retain           Bound     main/mysql-pvc   gp2                      9m