Can I deploy the local-path-provisioner pod to multiple nodes?

[HanHoRang31]

It's a feature question. I want to set up a local volume only on specific nodes(ex. node1, node2, node3) Can I simply deploy the local-path-provisioner pods on the nodes that will use the local volume using toleration and nodeselector?

[Sensei-CHO]

+1

[artarik]

You can do it in your service via tolerations and nodeSelection. pod local-path-provisioner deploying via deployment so it can be run as single replica

[Sensei-CHO]

Do you have an example to give us ?

[artarik]

sure my storageClass has name openebs-lvm-vghdd tolerations

---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: vghdd-pvc
spec:
  storageClassName: openebs-lvm-vghdd
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: mtkpi-pod
  labels:
    app: mtkpi
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mtkpi
  template:
    metadata:
      labels:
        app: mtkpi
    spec:
      containers:
        - resources:
          name: mtkpi-pod
          image: r0binak/mtkpi:v1
          ports:
          - containerPort: 7681
          securityContext:
            readOnlyRootFilesystem: true
          imagePullPolicy: IfNotPresent
          volumeMounts:
            - mountPath: /data_hdd
              name: pvc-data-hdd
      tolerations:
        - effect: NoSchedule
          key: node-role.kubernetes.io/lvmhdd
          operator: Exists
      volumes:
        - name: pvc-data-hdd
          persistentVolumeClaim:
            claimName: vghdd-pvc

nodeselector

---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: vghdd-pvc
spec:
  storageClassName: openebs-lvm-vghdd
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: mtkpi-pod
  labels:
    app: mtkpi
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mtkpi
  template:
    metadata:
      labels:
        app: mtkpi
    spec:
      containers:
        - resources:
          name: mtkpi-pod
          image: r0binak/mtkpi:v1
          ports:
          - containerPort: 7681
          securityContext:
            readOnlyRootFilesystem: true
          imagePullPolicy: IfNotPresent
          volumeMounts:
            - mountPath: /data_hdd
              name: pvc-data-hdd
      nodeSelector:
        disktype: hdd
      volumes:
        - name: pvc-data-hdd
          persistentVolumeClaim:
            claimName: vghdd-pvc

[Sensei-CHO]

Thx!

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