demo/docs: update demo of Kadalu CSI Plugin (#13610)

ref: kadalu/kadalu#817

Signed-off-by: Leela Venkaiah G <leelavg@thoughtexpo.com>

demo/csi/kadalu-csi/README.md

@@ -9,7 +9,7 @@ Refer to the actual job files before proceeding with this demo and change the
 configuration as required. Follow along with the commands according to your
 configuration.
 
-Locally tested against Nomad v1.1.4.
+Locally tested against Nomad v1.3.1
 
 ## Local Development
 
@@ -92,7 +92,7 @@ Verify the CSI plugin status.
 $ nomad plugin status kadalu-csi
 ID                   = kadalu-csi
 Provider             = kadalu
-Version              = 0.8.6
+Version              = 0.8.15
 Controllers Healthy  = 1
 Controllers Expected = 1
 Nodes Healthy        = 1

demo/csi/kadalu-csi/cluster.vars

@@ -1,5 +1,6 @@
-# client_nodes is only applicable for local dev environment
+# client_nodes and nomad_version is only applicable for local dev environment
 client_nodes=0
+nomad_version="1.3.1"
 
 # Below are the variables with defaults that corresponding job accepts
 
@@ -9,7 +10,7 @@ client_nodes=0
 /* gluster_hosts = "ghost.example.com" */
 /* gluster_volname = "dist" */
 /* gluster_user = "root" */
-/* kadalu_version = "0.8.6" */
+/* kadalu_version = "0.8.15" */
 /* ssh_priv_path = "/root/.ssh/id_rsa" */
 
 /* # nodeplugin.nomad */
@@ -18,7 +19,7 @@ client_nodes=0
 /* gluster_hosts = "ghost.example.com" */
 /* gluster_volname = "dist" */
 /* gluster_user = "root" */
-/* kadalu_version = "0.8.6" */
+/* kadalu_version = "0.8.15" */
 
 /* # app.nomad */
 /* cn_network = "dc1" */

demo/csi/kadalu-csi/controller.nomad

@@ -24,8 +24,8 @@ variable "gluster_volname" {
 }
 
 variable "kadalu_version" {
-  default     = "0.8.6"
-  description = "Kadalu CSI version which is tested against Nomad (v1.1.4)"
+  default     = "0.8.15"
+  description = "Kadalu CSI version which is tested against Nomad version mentioned in README.md"
 }
 
 variable "gluster_user" {

demo/csi/kadalu-csi/nodeplugin.nomad

@@ -16,7 +16,7 @@ variable "gluster_volname" {
 }
 
 variable "kadalu_version" {
-  default = "0.8.6"
+  default = "0.8.15"
 }
 
 job "kadalu-csi-nodeplugin" {