local block

centos_block.yml

---

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: block-pv
spec:
  accessModes:
    - ReadWriteOnce
  volumeMode: Block
  storageClassName: local-block
  resources:
    requests:
      storage: 10Gi

---

kind: Pod
apiVersion: v1
metadata:
  name: centos
spec:
  containers:
    - name: centos
      image: centos:7
      command: ["/bin/bash", "-c"]
      args: ["sleep infinity"]
      securityContext:
        privileged: true
        capabilities:
          add:
            - ALL
      volumeDevices:
        - name: block
          devicePath: /dev/myblock
  volumes:
    - name: block
      persistentVolumeClaim:
        claimName: block-pv

info.txt

$ ./k get no -owide
NAME      STATUS   ROLES    AGE   VERSION   INTERNAL-IP       EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION               CONTAINER-RUNTIME
master    Ready    master   22h   v1.14.2   192.168.121.138   <none>        CentOS Linux 7 (Core)   3.10.0-957.12.2.el7.x86_64   docker://1.13.1
worker0   Ready    worker   22h   v1.14.2   192.168.121.243   <none>        CentOS Linux 7 (Core)   3.10.0-957.12.2.el7.x86_64   docker://1.13.1
worker1   Ready    worker   22h   v1.14.2   192.168.121.147   <none>        CentOS Linux 7 (Core)   3.10.0-957.12.2.el7.x86_64   docker://1.13.1
worker2   Ready    worker   22h   v1.14.2   192.168.121.36    <none>        CentOS Linux 7 (Core)   3.10.0-957.12.2.el7.x86_64   docker://1.13.1

$ ./k version
Client Version: version.Info{Major:"1", Minor:"12", GitVersion:"v1.12.5", GitCommit:"51dd616cdd25d6ee22c83a858773b607328a18ec", GitTreeState:"archive", BuildDate:"2019-03-05T13:36:50Z", GoVersion:"go1.12", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.2", GitCommit:"66049e3b21efe110454d67df4fa62b08ea79a19b", GitTreeState:"clean", BuildDate:"2019-05-16T16:14:56Z", GoVersion:"go1.12.5", Compiler:"gc", Platform:"linux/amd64"}

pv.yml

apiVersion: v1
kind: PersistentVolume
metadata:
  annotations:
    pv.kubernetes.io/bound-by-controller: "yes"
    pv.kubernetes.io/provisioned-by: local-volume-provisioner-worker0-66dce061-879f-11e9-92e6-525400666bac
  creationTimestamp: 2019-06-05T15:23:54Z
  finalizers:
  - kubernetes.io/pv-protection
  name: local-pv-9a768566
  resourceVersion: "28288"
  selfLink: /api/v1/persistentvolumes/local-pv-9a768566
  uid: ee094701-87a5-11e9-a0fc-525400666bac
spec:
  accessModes:
  - ReadWriteOnce
  capacity:
    storage: 30Gi
  claimRef:
    apiVersion: v1
    kind: PersistentVolumeClaim
    name: block-pv
    namespace: default
    resourceVersion: "28283"
    uid: e116441c-885a-11e9-b764-525400666bac
  local:
    path: /dev/kube_blk_devs/vdb
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - worker0
  persistentVolumeReclaimPolicy: Delete
  storageClassName: local-block
  volumeMode: Block
status:
  phase: Bound