chore: optimize resource allocation and memory settings in Docker Compose

- Added memory and CPU limits and reservations for Prometheus, Grafana, and Uptime Kuma services to enhance performance and resource management.
- Updated Prometheus and Grafana configurations with new storage block duration settings for improved memory optimization.
- Revised README to include additional commands for running specific services and restarting containers.

infra/ansible/playbook.yml

@@ -34,7 +34,7 @@
       known_hosts:
         path: ~/.ssh/known_hosts
         name: "{{ ansible_host }}"
-        key: "{{ lookup('pipe', 'ssh-keyscan -t rsa,ecdsa,ed25519 ' + ansible_host) }}"
+        key: "{{ lookup('pipe', 'ssh-keyscan -t rsa,ecdsa,ed25519 ' + ansible_host + ' 2>/dev/null') }}"
         state: present
       delegate_to: localhost
       run_once: true
@@ -71,6 +71,8 @@
           - certbot
           - python3-certbot-nginx
           - logrotate
+          - net-tools
+          - cron
         state: present
 
     - name: "[1/10] Установить Python библиотеки для Ansible"
@@ -233,9 +235,10 @@
         var: node_exporter_status.stdout_lines
 
     - name: "[3/10] Проверить, что node_exporter слушает на порту 9100"
-      command: netstat -tulpn | grep 9100
+      command: ss -tulpn | grep 9100
       register: node_exporter_port
       changed_when: false
+      ignore_errors: yes
 
     - name: "[3/10] Показать информацию о порте 9100"
       debug:
@@ -1126,6 +1129,7 @@
       command: fail2ban-client status
       register: fail2ban_status
       changed_when: false
+      ignore_errors: yes
 
     - name: "[9/10] Показать статус Fail2ban"
       debug:
@@ -1233,6 +1237,12 @@
         enabled: yes
         state: started
 
+    - name: "[9.5/10] Установить cron (если не установлен)"
+      apt:
+        name: cron
+        state: present
+      when: ansible_pkg_mgr == "apt"
+
     - name: "[9.5/10] Настроить cron для ежедневного запуска logrotate"
       cron:
         name: "Logrotate daily"