[FIX] Updated OpenShift Template to take an Image as a Param (#9946)

* Updated template to use ROCKETCHAT_IMAGE

The template now uses ROCKETCHAT_IMAGE as a parameter with rocketchat/rocket.chat as a default

.openshift/rocket-chat-ephemeral.json

@@ -151,7 +151,7 @@
                 "name": "rocketchat"
             },
             "spec": {
-                "dockerImageRepository": "registry.connect.redhat.com/rocketchat/rocketchat",
+                "dockerImageRepository": "${ROCKETCHAT_IMAGE}",
                 "tags": [
                     {
                         "name": "latest",
@@ -241,7 +241,7 @@
                         "containers": [
                             {
                                 "name": "rocketchat",
-                                "image": "registry.connect.redhat.com/rocketchat/rocketchat:latest",
+                                "image": "${ROCKETCHAT_IMAGE}:latest",
                                 "ports": [
                                     {
                                         "containerPort": 3000,
@@ -424,6 +424,13 @@
             "value": "rocketchatdb",
             "required": true
         },
+        {
+            "name": "ROCKETCHAT_IMAGE",
+            "displayName": "RocketChat Image",
+            "description": "The RocketChat image to use for this deployment",
+            "required": true,
+            "value": "rocketchat/rocket.chat"
+        },
         {
             "name": "MONGODB_ADMIN_PASSWORD",
             "displayName": "MongoDB Admin Password",

.openshift/rocket-chat-persistent.json

@@ -171,7 +171,7 @@
                 "name": "rocketchat"
             },
             "spec": {
-                "dockerImageRepository": "registry.connect.redhat.com/rocketchat/rocketchat",
+                "dockerImageRepository": "${ROCKETCHAT_IMAGE}",
                 "tags": [
                     {
                         "name": "latest",
@@ -261,7 +261,7 @@
                         "containers": [
                             {
                                 "name": "rocketchat",
-                                "image": "registry.connect.redhat.com/rocketchat/rocketchat:latest",
+                                "image": "${ROCKETCHAT_IMAGE}:latest",
                                 "ports": [
                                     {
                                         "containerPort": 3000,
@@ -452,6 +452,13 @@
             "from": "[a-zA-Z0-9]{16}",
             "required": true
         },
+        {
+            "name": "ROCKETCHAT_IMAGE",
+            "displayName": "RocketChat Image",
+            "description": "The RocketChat image to use for this deployment",
+            "required": true,
+            "value": "rocketchat/rocket.chat"
+        },
         {
             "name": "VOLUME_CAPACITY",
             "displayName": "Volume Capacity",