Kubernetes. Подключить локальную папку в POD.

mount-local-folder-to-pod.yml

#Подключить локальную папку в POD.
#1. создаем PersistentVolume  с привязкой к конкретной ноде
#2. создаем PersistentVolumeClaim
#3. прописываем volumes и volumeMounts в deployment
#В deployment не обязательно привязываться к конкретной ноде, kubernetes сам поймет,
#что нужно под запускать на конкретной ноде исходя из настроек PersistentVolumeClaim.

apiVersion: v1
kind: PersistentVolume
metadata:
  name: my-pv
spec:
  capacity:
    storage: 10Gi 
  volumeMode: Filesystem
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Delete
  storageClassName: local-storage
  local:
    path: /data/pod-data
  nodeAffinity:
    required:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          - my-k8s-node1
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: my-pv-claim
spec:
  storageClassName: local-storage
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  labels:
  name: my-microservice
  namespace: devel  
spec:  
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      k8s-app: my-microservice
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 1
    type: RollingUpdate
  template:
    metadata:
      creationTimestamp: null
      labels:
        k8s-app: my-microservice
    spec:
      volumes:
      - name: my-pv
        persistentVolumeClaim:
          claimName: my-pv-claim
      containers:         
        image: my-image:latest
        imagePullPolicy: Always
        name: my-microservice        
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: "/data"
          name: my-pv
      dnsPolicy: ClusterFirst
      imagePullSecrets:
      - name: docker-registry-credentials
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30