refactor(examples): add deployment example for an nfs server with kerberos auth

Author: GamerGirlandCo

deploy/example/nfs-provisioner/nfs-krb-server.yaml

@@ -0,0 +1,82 @@
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: nfs-krb-server
+  namespace: default
+  labels:
+    app: nfs-krb-server
+spec:
+  type: ClusterIP  # use "LoadBalancer" to get a public ip
+  selector:
+    app: nfs-krb-server
+  ports:
+    - name: tcp-2049
+      port: 2049
+      protocol: TCP
+    - name: udp-111
+      port: 111
+      protocol: UDP
+    - name: tcp-88
+      port: 88
+      protocol: TCP
+    - name: tcp-749
+      port: 749
+      protocol: TCP 
+---
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+  name: nfs-krb-server
+  namespace: default
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: nfs-krb-server
+  template:
+    metadata:
+      name: nfs-krb-server
+      labels:
+        app: nfs-krb-server
+    spec:
+      nodeSelector:
+        "kubernetes.io/os": linux
+      containers:
+        - name: nfs-krb-server
+          image: docker.io/thealmightydrawingtablet/nfs-krb:alpine
+          env:
+            - name: SHARED_DIRECTORY
+              value: "/srv/shared"
+            - name: NFS_KRB_REALM
+              value: NFS-KRB-SERVER.DEFAULT.SVC.CLUSTER.LOCAL
+            - name: NFS_KRB_PRINC
+              value: nfs/nfs-krb-server.default.svc.cluster.local
+            - name: NFS_KRB_PWD
+              valueFrom:
+                secretKeyRef:
+                  name: krb-pwd
+                  key: value
+          volumeMounts:
+            - mountPath: /srv/shared
+              name: nfs-vol
+          securityContext:
+            privileged: true
+          ports:
+            - name: tcp-2049
+              containerPort: 2049
+              protocol: TCP
+            - name: udp-111
+              containerPort: 111
+              protocol: UDP
+            - name: tcp-88
+              containerPort: 88
+              protocol: TCP
+            - name: tcp-749
+              containerPort: 749
+              protocol: TCP
+      volumes:
+        - name: nfs-vol
+          hostPath:
+            path: /srv/nfs-krb-vol  # modify this to specify another path to store nfs share data
+            type: DirectoryOrCreate