Persistent Local Volumes

volumes.yaml

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: primary-storage
provisioner: kubernetes.io/no-provisioner
volumeBindingMode: Immediate
---
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: replica-storage
provisioner: kubernetes.io/no-provisioner
volumeBindingMode: Immediate
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: primary-local-pv
spec:
  capacity:
    storage: 1Gi
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  storageClassName: primary-storage
  local:
    path: /data/pgdata/primary-vol
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - node1.k8s.vm.local
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: replica-local-pv-1
spec:
  capacity:
    storage: 1Gi
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  storageClassName: replica-storage
  local:
    path: /data/pgdata/replica-vol-1
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - node2.k8s.vm.local
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: replica-local-pv-2
spec:
  capacity:
    storage: 1Gi
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  storageClassName: replica-storage
  local:
    path: /data/pgdata/replica-vol-2
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - node3.k8s.vm.local
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: primary-pvc
spec:
  storageClassName: primary-storage
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi
---
kind: Pod
apiVersion: v1
metadata:
  name: web-test
spec:
  volumes:
    - name: task-pv-storage
      persistentVolumeClaim:
       claimName: primary-pvc
  containers:
    - name: task-pv-container
      image: localhost:5000/nginx:latest
      ports:
        - containerPort: 80
          name: "http-server"
      volumeMounts:
        - mountPath: "/usr/share/nginx/html"
          name: task-pv-storage

1. docs
2. SO question
3. k8s announcement
4. change default storage class