deploy: add deployment artifacts for NFS support

These deployment files are heavily based on the CephFS deployment.

Deploying an environment with these files work for me in minikube. This
should make it possible to add e2e testing as well.

Signed-off-by: Niels de Vos <ndevos@redhat.com>

deploy/nfs/kubernetes/csi-provisioner-psp.yaml

@@ -0,0 +1,55 @@
+---
+apiVersion: policy/v1beta1
+kind: PodSecurityPolicy
+metadata:
+  name: nfs-csi-provisioner-psp
+spec:
+  fsGroup:
+    rule: RunAsAny
+  runAsUser:
+    rule: RunAsAny
+  seLinux:
+    rule: RunAsAny
+  supplementalGroups:
+    rule: RunAsAny
+  volumes:
+    - 'configMap'
+    - 'emptyDir'
+    - 'projected'
+    - 'secret'
+    - 'hostPath'
+  allowedHostPaths:
+    - pathPrefix: '/dev'
+      readOnly: false
+    - pathPrefix: '/sys'
+      readOnly: false
+    - pathPrefix: '/lib/modules'
+      readOnly: true
+---
+kind: Role
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: nfs-csi-provisioner-psp
+  # replace with non-default namespace name
+  namespace: default
+rules:
+  - apiGroups: ['policy']
+    resources: ['podsecuritypolicies']
+    verbs: ['use']
+    resourceNames: ['nfs-csi-provisioner-psp']
+---
+kind: RoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: nfs-csi-provisioner-psp
+  # replace with non-default namespace name
+  namespace: default
+subjects:
+  - kind: ServiceAccount
+    name: nfs-csi-provisioner
+    # replace with non-default namespace name
+    namespace: default
+roleRef:
+  kind: Role
+  name: nfs-csi-provisioner-psp
+  apiGroup: rbac.authorization.k8s.io