diff --git a/deployment/check/common/data-model.nix b/deployment/check/common/data-model.nix
index 3f069333..e6d7e807 100644
--- a/deployment/check/common/data-model.nix
+++ b/deployment/check/common/data-model.nix
@@ -32,6 +32,7 @@ let
     vlanId
     imageDatastoreId
     vmDatastoreId
+    cdDatastoreId
     ipv4Gateway
     ipv4Address
     ipv6Gateway
@@ -352,6 +353,7 @@ let
                       vlanId
                       imageDatastoreId
                       vmDatastoreId
+                      cdDatastoreId
                       ipv4Gateway
                       ipv4Address
                       ipv6Gateway
diff --git a/deployment/check/data-model-tf-proxmox/nixosTest.nix b/deployment/check/data-model-tf-proxmox/nixosTest.nix
index 920b30f1..21da9375 100644
--- a/deployment/check/data-model-tf-proxmox/nixosTest.nix
+++ b/deployment/check/data-model-tf-proxmox/nixosTest.nix
@@ -27,6 +27,7 @@ let
     vlanId = 0;
     imageDatastoreId = "local";
     vmDatastoreId = "local";
+    cdDatastoreId = "local";
     ipv4Gateway = "192.168.1.1";
     ipv4Address = "192.168.1.236/24";
     ipv6Gateway = "";
diff --git a/deployment/check/data-model-tf/options.nix b/deployment/check/data-model-tf/options.nix
index e259a4c6..6a526037 100644
--- a/deployment/check/data-model-tf/options.nix
+++ b/deployment/check/data-model-tf/options.nix
@@ -54,6 +54,11 @@ in
       type = types.str;
       default = "local";
     };
+    cdDatastoreId = mkOption {
+      description = "ID of the datastore of the virtual CD-rom drive to use for cloud-init.";
+      type = types.str;
+      default = "local";
+    };
     ipv4Gateway = mkOption {
       description = "Gateway for IPv4.";
       type = types.str;
diff --git a/deployment/data-model.nix b/deployment/data-model.nix
index abc1e82f..67a857a1 100644
--- a/deployment/data-model.nix
+++ b/deployment/data-model.nix
@@ -349,6 +349,11 @@ let
             type = types.str;
             default = "local";
           };
+          cdDatastoreId = mkOption {
+            description = "ID of the datastore of the virtual CD-rom drive to use for cloud-init.";
+            type = types.str;
+            default = "local";
+          };
           ipv4Gateway = mkOption {
             description = "Gateway for IPv4.";
             type = types.str;
@@ -390,6 +395,7 @@ let
                   vlanId
                   imageDatastoreId
                   vmDatastoreId
+                  cdDatastoreId
                   ipv4Gateway
                   ipv4Address
                   ipv6Gateway
@@ -464,6 +470,7 @@ let
                   vlan_id = vlanId;
                   image_datastore_id = imageDatastoreId;
                   vm_datastore_id = vmDatastoreId;
+                  cd_datastore_id = cdDatastoreId;
                   ipv4_gateway = ipv4Gateway;
                   ipv4_address = ipv4Address;
                   ipv6_gateway = ipv6Gateway;
diff --git a/deployment/run/tf-proxmox/main.tf b/deployment/run/tf-proxmox/main.tf
index ed00f67e..9bdd4adf 100644
--- a/deployment/run/tf-proxmox/main.tf
+++ b/deployment/run/tf-proxmox/main.tf
@@ -158,6 +158,7 @@ resource "proxmox_virtual_environment_vm" "nix_vm" {
   bios           = "ovmf"
 
   initialization {
+    datastore_id = var.cd_datastore_id
     ip_config {
       ipv4 {
         gateway = var.ipv4_gateway
diff --git a/deployment/run/tf-proxmox/variables.tf b/deployment/run/tf-proxmox/variables.tf
index 60d6c92e..eb0c90fe 100644
--- a/deployment/run/tf-proxmox/variables.tf
+++ b/deployment/run/tf-proxmox/variables.tf
@@ -76,6 +76,12 @@ variable "vm_datastore_id" {
   default = "local"
 }
 
+variable "cd_datastore_id" {
+  description = "ID of the datastore of the virtual CD-rom drive to use for cloud-init."
+  type = string
+  default = "local"
+}
+
 variable "ipv4_gateway" {
   description = "Gateway for IPv4."
   type = string
diff --git a/flake.nix b/flake.nix
index aeb01846..54d993fb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -99,6 +99,7 @@
                       vlanId = 1305;
                       imageDatastoreId = "local";
                       vmDatastoreId = "linstor_storage";
+                      cdDatastoreId = "local-lvm";
                       ipv4Gateway = "eth0";
                       ipv4Address = "";
                       # ipv4Address = "95.215.187.${vm-id}";