diff --git a/lab/us-gov-east-1/vpc/_mcmCluster/common_vars.hcl b/lab/us-gov-east-1/vpc/_mcmCluster/common_vars.hcl
index d18706e..fbbb5ef 100644
--- a/lab/us-gov-east-1/vpc/_mcmCluster/common_vars.hcl
+++ b/lab/us-gov-east-1/vpc/_mcmCluster/common_vars.hcl
@@ -38,12 +38,13 @@ locals {
   cluster_version = "1.30"
 
   # The domain in which the cluster is being built
-  domain = local.account_vars.locals.domain_name
+  domain = local.account_vars.locals.vpc_domain_name
 
   # The size of the disk for the worker nodes, in GB
   # Loki claims 60 GB - 10g claims - 2 services each with 3 replicas
-  # Prometheus claims 10g 
-  eks_instance_disk_size = 100
+  # Prometheus claims 10g
+  # Tempo claims 10g x 3 replicas
+  eks_instance_disk_size = 120
 
   # The VPC name in which the cluster will operate
   eks_vpc_name = local.vpc_name
@@ -52,13 +53,13 @@ locals {
   eks_instance_types = ["t3.xlarge", "m4.xlarge", "m5.xlarge"]
 
   # How many worker nodes are desired
-  eks_ng_desired_size = 3
+  eks_ng_desired_size = 1
 
   # What is the maximum number of worker nodes allowed.
   eks_ng_max_size = 10
 
   # What is the minimum number of worker nodes allowed.
-  eks_ng_min_size = 0
+  eks_ng_min_size = 1
 
   # Namespace to use for operator installation
   operators_namespace = "operators"