From 4f9f2ab1a08fd527ffbc8bac76396c789a936f2c Mon Sep 17 00:00:00 2001
From: Mayank Shah <mayankshah1614@gmail.com>
Date: Thu, 8 Oct 2020 18:21:15 +0530
Subject: [PATCH] Add example for NFS server

Signed-off-by: Mayank Shah <mayankshah1614@gmail.com>
---
 examples/kubernetes/nfs-provisioner/README.md | 18 ++++++++
 .../nfs-provisioner/nfs-server-lb.yaml        | 42 +++++++++++++++++++
 .../nfs-provisioner/nfs-server.yaml           | 42 +++++++++++++++++++
 .../nfs-provisioner/pv-nfs-csi.yaml           | 20 +++++++++
 4 files changed, 122 insertions(+)
 create mode 100644 examples/kubernetes/nfs-provisioner/README.md
 create mode 100644 examples/kubernetes/nfs-provisioner/nfs-server-lb.yaml
 create mode 100644 examples/kubernetes/nfs-provisioner/nfs-server.yaml
 create mode 100644 examples/kubernetes/nfs-provisioner/pv-nfs-csi.yaml

diff --git a/examples/kubernetes/nfs-provisioner/README.md b/examples/kubernetes/nfs-provisioner/README.md
new file mode 100644
index 00000000..bb877a0a
--- /dev/null
+++ b/examples/kubernetes/nfs-provisioner/README.md
@@ -0,0 +1,18 @@
+# Set up a NFS Server on a Kubernetes cluster
+
+> Note: This example is for development perspective only. Because the NFS server is sticky to the node it is scheduled on, data shall be lost if the pod is rescheduled on another node.
+
+To create a NFS provisioner on your Kubernetes cluster, run the following command
+
+```bash
+kubectl create -f https://raw.githubusercontent.com/kubernetes-csi/csi-driver-nfs/master/examples/kubernetes/nfs-provisioner/nfs-server.yaml
+```
+
+After deploying, a new service `nfs-server` is created. The file share path is accessible at `nfs-server.default.svc.cluster.local/nfsshare`.
+
+
+To obtain a public IP for the service, run the following command instead
+
+```bash
+kubectl create -f https://raw.githubusercontent.com/kubernetes-csi/csi-driver-nfs/master/examples/kubernetes/nfs-provisioner/nfs-server-lb.yaml
+```
diff --git a/examples/kubernetes/nfs-provisioner/nfs-server-lb.yaml b/examples/kubernetes/nfs-provisioner/nfs-server-lb.yaml
new file mode 100644
index 00000000..4ccd14f0
--- /dev/null
+++ b/examples/kubernetes/nfs-provisioner/nfs-server-lb.yaml
@@ -0,0 +1,42 @@
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: nfs-server
+  labels:
+    app: nfs-server
+spec:
+  type: LoadBalancer
+  selector:
+    app: nfs-server
+  ports:
+    - port: 2049
+      name: nfs-server
+---
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+    name: nfs-server
+spec:
+    replicas: 1
+    selector:
+        matchLabels:
+            app: nfs-server
+    template:
+        metadata:
+            name: nfs-server
+            labels:
+                app: nfs-server
+        spec:
+            containers:
+                - name: nfs-server
+                  image: gcr.io/kubernetes-e2e-test-images/volume/nfs:1.0
+                  ports:
+                    - containerPort: 2049
+                  volumeMounts:
+                    - mountPath: /nfsshare
+                      name: data-volume
+            volumes:
+                name: data-volume
+                hostPath: /nfsshare-volume
+                type: DirectoryOrCreate
\ No newline at end of file
diff --git a/examples/kubernetes/nfs-provisioner/nfs-server.yaml b/examples/kubernetes/nfs-provisioner/nfs-server.yaml
new file mode 100644
index 00000000..8ed8dbc4
--- /dev/null
+++ b/examples/kubernetes/nfs-provisioner/nfs-server.yaml
@@ -0,0 +1,42 @@
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: nfs-server
+  labels:
+    app: nfs-server
+spec:
+  type: ClusterIP  # use "LoadBalancer" to get a public ip
+  selector:
+    app: nfs-server
+  ports:
+    - port: 2049
+      name: nfs-server
+---
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+    name: nfs-server
+spec:
+    replicas: 1
+    selector:
+        matchLabels:
+            app: nfs-server
+    template:
+        metadata:
+            name: nfs-server
+            labels:
+                app: nfs-server
+        spec:
+            containers:
+                - name: nfs-server
+                  image: gcr.io/kubernetes-e2e-test-images/volume/nfs:1.0
+                  ports:
+                    - containerPort: 2049
+                  volumeMounts:
+                    - mountPath: /nfsshare
+                      name: data-volume
+            volumes:
+                name: data-volume
+                hostPath: /nfsshare-volume
+                type: DirectoryOrCreate
\ No newline at end of file
diff --git a/examples/kubernetes/nfs-provisioner/pv-nfs-csi.yaml b/examples/kubernetes/nfs-provisioner/pv-nfs-csi.yaml
new file mode 100644
index 00000000..e3c0261d
--- /dev/null
+++ b/examples/kubernetes/nfs-provisioner/pv-nfs-csi.yaml
@@ -0,0 +1,20 @@
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: pv-nfs
+spec:
+  capacity:
+    storage: 1Gi
+  accessModes:
+    - ReadWriteMany
+  persistentVolumeReclaimPolicy: Retain
+  mountOptions:
+    - vers=3.0
+  csi:
+    driver: nfs.csi.k8s.io
+    readOnly: false
+    volumeHandle: unique-volumeid  # make sure it's a unique id in the cluster
+    volumeAttributes:
+      server: nfs-server.default.svc.cluster.local
+      share: /nfsshare
\ No newline at end of file