User-space NFS Server for deployment in Kubernetes (Note: NFSv4 only, non-standard NFS port 32049/tcp)

ganesha-nfs.md

Usage

1. Deploy NFS server to a K8s cluster

kubectl apply -f https://t.ly/m-flt

2. In the same or a different cluster create a NFS backup target in Longhorn:
   a) Navigate to Longhorn UI -> Settings -> General -> Backup target
   b) Enter the following URL, replacing <Cluster_Node_IP> with the IP address of any node of the K8s cluster running the NFS server, then click 'Save':

nfs://<Cluster_Node_IP>:/?nfsOptions=actimeo=1,soft,timeo=330,retry=2,port=32049

3. Create a volume backup and navigate to list of Backups in the Longhorn UI

ganesha-nfs.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: nfs-ganesha
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nfs-ganesha
  name: nfs-ganesha
  namespace: nfs-ganesha
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nfs-ganesha
  template:
    metadata:
      labels:
        app: nfs-ganesha
      namespace: nfs-ganesha
    spec:
      containers:
        - image: janeczku/nfs-ganesha
          imagePullPolicy: Always
          name: container-0
          ports:
            - containerPort: 2049
              name: nfsv4
              protocol: TCP
          securityContext:
            capabilities:
              add:
                - NET_ADMIN
                - DAC_READ_SEARCH
            privileged: true
          volumeMounts:
            - mountPath: /data/nfs
              name: share
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      volumes:
        - emptyDir: {}
          name: share
---
apiVersion: v1
kind: Service
metadata:
  name: nfs-ganesha-nodeport
  namespace: nfs-ganesha
spec:
  ports:
    - name: nfsv4
      nodePort: 32049
      port: 2049
      protocol: TCP
      targetPort: 2049
  selector:
    app: nfs-ganesha
  type: NodePort
---
apiVersion: v1
kind: Service
metadata:
  name: nfs-ganesha
  namespace: nfs-ganesha
spec:
  ports:
    - name: nfsv4
      port: 2049
      protocol: TCP
      targetPort: 2049
  selector:
    app: nfs-ganesha
  type: ClusterIP