diff --git a/playbook.yml b/playbook.yml
index a2af622..6559fc6 100644
--- a/playbook.yml
+++ b/playbook.yml
@@ -2,10 +2,6 @@
 - name: Deploy Monitoring on general_server
   hosts: general_server
   become: yes
-  vars_files:
-    - group_vars/all/vars.yml
-    - group_vars/all/vault.yml
-
   tasks:
     - name: Создание системного юзера
       ansible.builtin.user:
@@ -69,10 +65,6 @@
 - name: Deploy Exporter on other servers
   hosts: all
   become: yes
-  vars_files:
-    - group_vars/all/vars.yml
-    - group_vars/all/vault.yml
-
   tasks:
     - name: Создание системного юзера
       ansible.builtin.user:
@@ -80,12 +72,6 @@
         state: present
         shell: /usr/sbin/nologin
 
-    - name: Установить понятное имя хоста с индексом
-      ansible.builtin.hostname:
-        name: "node-{{ ansible_play_hosts.index(inventory_hostname) }}"
-      when: ansible_play_hosts.index(inventory_hostname) > 0
-      notify: restart node-exporter
-
     - name: Создать директории для проекта
       ansible.builtin.file:
         path: "{{ monitoring_dir }}"
diff --git a/terraform-infra/main.tf b/terraform-infra/main.tf
index 59158bb..5df60d1 100644
--- a/terraform-infra/main.tf
+++ b/terraform-infra/main.tf
@@ -14,21 +14,21 @@ resource "yandex_vpc_subnet" "main_subnet" {
 }
 
 resource "yandex_compute_instance" "server" {
-  count = 5
+  count = var.instance_count
 
   name        = "server_${count.index + 1}"
   platform_id = "standard-v3"
   zone        = "ru-central1-a"
 
   resources {
-    cores  = 2
-    memory = 2
+    cores  = var.cores
+    memory = var.memory
   }
 
   boot_disk {
     initialize_params {
       image_id = data.yandex_compute_image.ubuntu.id
-      size     = 15
+      size     = var.size
     }
   }
 
@@ -38,7 +38,12 @@ resource "yandex_compute_instance" "server" {
   }
 
   metadata = {
-    ssh-keys = "ubuntu:${file("~/.ssh/ssh-key-1789658954721.pub")}"
+    ssh-keys = "ubuntu:${file(pathexpand(var.key))}"
+    user-data = <<-EOF
+      #!/bin/bash
+      echo "PasswordAuthentication no" > /etc/ssh/sshd_config.d/01-disable-pw.conf
+      systemctl reload ssh
+    EOF
   }
 }
 
@@ -46,3 +51,4 @@ output "public_ips" {
   description = "Публичные IP адреса созданных серверов"
   value       = yandex_compute_instance.server[*].network_interface.0.nat_ip_address
 }
+
diff --git a/terraform-infra/variables.tf b/terraform-infra/variables.tf
new file mode 100644
index 0000000..28f32db
--- /dev/null
+++ b/terraform-infra/variables.tf
@@ -0,0 +1,25 @@
+variable "instance_count" {
+  type        = number
+  description = "Количество инстансов"
+  default     = 5
+}
+
+variable "cores" {
+  type        = number
+  default     = 2
+}
+
+variable "memory" {
+  type        = number
+  default     = 2
+}
+
+variable "size" {
+  type        = number
+  default     = 20
+}
+
+variable "key" {
+  type    = string
+  default = "~/.ssh/ssh-key-1789658954721.pub"
+}