diff --git a/examples/full-cluster-tf-upgrade/1.25/common-services/main.tf b/examples/full-cluster-tf-upgrade/1.25/common-services/main.tf
index ebc690a..27374d7 100644
--- a/examples/full-cluster-tf-upgrade/1.25/common-services/main.tf
+++ b/examples/full-cluster-tf-upgrade/1.25/common-services/main.tf
@@ -1,26 +1,27 @@
 locals {
-  charts = {
-    "cert-manager" = {
-      name       = "cert-manager"
-      repository = "https://charts.jetstack.io"
-      version    = "v1.4.3"
-      use_remote = true
-    }
-
-    "metrics-server" = {
-      name       = "metrics-server"
-      repository = "https://charts.bitnami.com/bitnami"
-      version    = "6.2.6"
-      use_remote = true
-    }
-
-    # a standard chart that is downloaded as part of the istio-bundle.  It's not
-    # available standalone in a repository
-    #  name       = "istio-operator"
-    # these are all custom
-    #  name       = "certificate-issuer"
-    #  name       = "istio-profile"
-  }
+  charts = var.chart_details
+  ##   charts = {
+  ##     "cert-manager" = {
+  ##       name       = "cert-manager"
+  ##       repository = "https://charts.jetstack.io"
+  ##       version    = "v1.4.3"
+  ##       use_remote = true
+  ##     }
+  ## 
+  ##     "metrics-server" = {
+  ##       name       = "metrics-server"
+  ##       repository = "https://charts.bitnami.com/bitnami"
+  ##       version    = "6.2.6"
+  ##       use_remote = true
+  ##     }
+  ## 
+  ##     # a standard chart that is downloaded as part of the istio-bundle.  It's not
+  ##     # available standalone in a repository
+  ##     #  name       = "istio-operator"
+  ##     # these are all custom
+  ##     #  name       = "certificate-issuer"
+  ##     #  name       = "istio-profile"
+  ##   }
 }
 
 resource "kubernetes_namespace" "cert-manager" {
diff --git a/examples/full-cluster-tf-upgrade/1.25/common-services/variables.common-services.auto.tfvars b/examples/full-cluster-tf-upgrade/1.25/common-services/variables.common-services.auto.tfvars
index 8f4ca2e..ca0b02a 100644
--- a/examples/full-cluster-tf-upgrade/1.25/common-services/variables.common-services.auto.tfvars
+++ b/examples/full-cluster-tf-upgrade/1.25/common-services/variables.common-services.auto.tfvars
@@ -23,3 +23,19 @@ vault_serviceaccount_role      = ""
 vault_serviceaccount_sa        = ""
 vault_token                    = ""
 vault_url                      = ""
+
+chart_details = {
+  "cert-manager" = {
+    name       = "cert-manager"
+    repository = "https://charts.jetstack.io"
+    version    = "v1.12.2"
+    use_remote = true
+  }
+
+  "metrics-server" = {
+    name       = "metrics-server"
+    repository = "https://charts.bitnami.com/bitnami"
+    version    = "6.2.6"
+    use_remote = true
+  }
+}
diff --git a/examples/full-cluster-tf-upgrade/1.25/common-services/variables.common-services.tf b/examples/full-cluster-tf-upgrade/1.25/common-services/variables.common-services.tf
index 17f2009..8567284 100644
--- a/examples/full-cluster-tf-upgrade/1.25/common-services/variables.common-services.tf
+++ b/examples/full-cluster-tf-upgrade/1.25/common-services/variables.common-services.tf
@@ -207,3 +207,14 @@ variable "istio_tag" {
   default     = "1.10.1"
 }
 
+variable "chart_details" {
+  description = "Map of object with details about remote charts"
+  type = map(object(
+    {
+      name       = string
+      repository = string
+      version    = string
+      use_remote = bool
+  }))
+  default = {}
+}