feat: Support to pass image credentials

ibm_catalog.json

@@ -368,6 +368,9 @@
             {
               "key": "kibana_image_port"
             },
+            {
+              "key": "image_secret"
+            },
             {
               "key": "kibana_visibility",
               "options": [

solutions/standard/main.tf

@@ -463,6 +463,7 @@ module "code_engine_kibana" {
     (local.code_engine_app_name) = {
       image_reference = var.kibana_image_digest != null ? "${var.kibana_registry_namespace_image}@${var.kibana_image_digest}" : "${var.kibana_registry_namespace_image}:${local.kibana_version}"
       image_port      = var.kibana_image_port
+      image_secret    = var.image_secret
       run_env_variables = [{
         type  = "literal"
         name  = "ELASTICSEARCH_HOSTS"

solutions/standard/variables.tf

@@ -397,6 +397,12 @@ variable "kibana_image_port" {
   default     = 5601
 }
 
+variable "image_secret" {
+  description = "The name of the image registry access secret."
+  type        = string
+  default     = null
+}
+
 variable "kibana_visibility" {
   description = "Specify the visibility of Kibana application in order to define which endpoint is available for receiving the requests. Valid values are 'local_public', 'local_private' and 'local' and it is only applicable if `enable_kibana_dashboard` is true. [Learn more](https://github.com/terraform-ibm-modules/terraform-ibm-icd-elasticsearch/blob/main/solutions/standard/DA-types.md#options-for-kibana_visibility)."
   type        = string