diff --git a/config/ev2config/config.yaml b/config/ev2config/config.yaml
index e5e3c2df..396bf595 100644
--- a/config/ev2config/config.yaml
+++ b/config/ev2config/config.yaml
@@ -6,6 +6,8 @@ clouds:
       azureContainerRegistry:
         domainNameSuffix: azurecr.us
       cloudName: Fairfax
+      cosmosDB:
+        dnsSuffix: .documents.azure.us
       entra:
         federatedcredentials:
           audience: api://AzureADTokenExchangeUSGov
@@ -88,6 +90,8 @@ clouds:
       azureContainerRegistry:
         domainNameSuffix: azurecr.io
       cloudName: Public
+      cosmosDB:
+        dnsSuffix: .documents.azure.com
       entra:
         federatedcredentials:
           audience: api://AzureADTokenExchange
diff --git a/config/ev2config/sanitizer/sanitizedconfig.go b/config/ev2config/sanitizer/sanitizedconfig.go
index cfeba33a..5cb48e2b 100644
--- a/config/ev2config/sanitizer/sanitizedconfig.go
+++ b/config/ev2config/sanitizer/sanitizedconfig.go
@@ -16,6 +16,11 @@ type SanitizedCloudConfigValues struct {
 	Entra                  SanitizedEntraConfig         `json:"entra"`
 	ARM                    SanitizedARMConfig           `json:"arm"`
 	Geneva                 SanitizedGenevaConfig        `json:"geneva"`
+	CosmosDB               SanitizedCosmosDBConfig      `json:"cosmosDB"`
+}
+
+type SanitizedCosmosDBConfig struct {
+	DnsSuffix string `json:"dnsSuffix"`
 }
 
 type KeyVaultValues struct {