---
# Универсальные проверки для тестового стенда
# Автор: Сергей Антропов
# Сайт: https://devops.org.ru

- name: Verify web servers
  hosts: web
  become: true
  tasks:
    - name: Check nginx service status
      systemd:
        name: nginx
      register: nginx_status

    - name: Verify nginx is running
      assert:
        that:
          - nginx_status.status.ActiveState == "active"
          - nginx_status.status.SubState == "running"
        fail_msg: "nginx service is not running"
        success_msg: "nginx service is running"

    - name: Test nginx response
      uri:
        url: "http://{{ inventory_hostname }}"
        method: GET
      register: nginx_response

    - name: Verify nginx response
      assert:
        that:
          - nginx_response.status == 200
        fail_msg: "nginx is not responding"
        success_msg: "nginx is responding correctly"

- name: Verify app servers
  hosts: app
  become: true
  tasks:
    - name: Check Python installation
      command: python3 --version
      register: python_version
      changed_when: false

    - name: Verify Python is installed
      assert:
        that:
          - python_version.rc == 0
        fail_msg: "Python3 is not installed"
        success_msg: "Python3 is installed: {{ python_version.stdout }}"

    - name: Check app file exists
      stat:
        path: /opt/myapp/app.py
      register: app_file

    - name: Verify app file exists
      assert:
        that:
          - app_file.stat.exists
        fail_msg: "App file does not exist"
        success_msg: "App file exists and is executable"

- name: Verify database servers
  hosts: database
  become: true
  tasks:
    - name: Check SQLite installation
      command: sqlite3 --version
      register: sqlite_version
      changed_when: false

    - name: Verify SQLite is installed
      assert:
        that:
          - sqlite_version.rc == 0
        fail_msg: "SQLite is not installed"
        success_msg: "SQLite is installed: {{ sqlite_version.stdout }}"

    - name: Check database file exists
      stat:
        path: /var/lib/mydb/sample.db
      register: db_file

    - name: Verify database file exists
      assert:
        that:
          - db_file.stat.exists
        fail_msg: "Database file does not exist"
        success_msg: "Database file exists"

    - name: Test database query
      command: sqlite3 /var/lib/mydb/sample.db "SELECT COUNT(*) FROM users;"
      register: db_query
      changed_when: false

    - name: Verify database query
      assert:
        that:
          - db_query.rc == 0
          - db_query.stdout | int > 0
        fail_msg: "Database query failed"
        success_msg: "Database query successful: {{ db_query.stdout }} users found"

- name: Verify cache servers
  hosts: cache
  become: true
  tasks:
    - name: Check Redis service status
      systemd:
        name: redis
      register: redis_status

    - name: Verify Redis is running
      assert:
        that:
          - redis_status.status.ActiveState == "active"
          - redis_status.status.SubState == "running"
        fail_msg: "Redis service is not running"
        success_msg: "Redis service is running"

    - name: Test Redis connection
      command: redis-cli ping
      register: redis_ping
      changed_when: false

    - name: Verify Redis connection
      assert:
        that:
          - redis_ping.rc == 0
          - redis_ping.stdout == "PONG"
        fail_msg: "Redis is not responding"
        success_msg: "Redis is responding correctly"

- name: Verify load balancer
  hosts: loadbalancer
  become: true
  tasks:
    - name: Check HAProxy service status
      systemd:
        name: haproxy
      register: haproxy_status

    - name: Verify HAProxy is running
      assert:
        that:
          - haproxy_status.status.ActiveState == "active"
          - haproxy_status.status.SubState == "running"
        fail_msg: "HAProxy service is not running"
        success_msg: "HAProxy service is running"

    - name: Check HAProxy configuration
      stat:
        path: /etc/haproxy/haproxy.cfg
      register: haproxy_config

    - name: Verify HAProxy configuration exists
      assert:
        that:
          - haproxy_config.stat.exists
        fail_msg: "HAProxy configuration does not exist"
        success_msg: "HAProxy configuration exists"

- name: Verify monitoring
  hosts: monitoring
  become: true
  tasks:
    - name: Check monitoring tools
      command: which htop
      register: htop_check
      changed_when: false

    - name: Verify monitoring tools are installed
      assert:
        that:
          - htop_check.rc == 0
        fail_msg: "Monitoring tools are not installed"
        success_msg: "Monitoring tools are installed"

    - name: Check monitoring script
      stat:
        path: /usr/local/bin/system-info.sh
      register: monitor_script

    - name: Verify monitoring script exists
      assert:
        that:
          - monitor_script.stat.exists
        fail_msg: "Monitoring script does not exist"
        success_msg: "Monitoring script exists"

    - name: Test monitoring script
      command: /usr/local/bin/system-info.sh
      register: monitor_output
      changed_when: false

    - name: Verify monitoring script works
      assert:
        that:
          - monitor_output.rc == 0
          - monitor_output.stdout | length > 0
        fail_msg: "Monitoring script failed"
        success_msg: "Monitoring script works correctly"

- name: Network connectivity tests
  hosts: all
  tasks:
    - name: Test connectivity to web servers
      wait_for:
        host: "{{ item }}"
        port: 80
        timeout: 10
      loop:
        - web1
        - web2
      when: "'web' not in group_names"
      ignore_errors: true

    - name: Test connectivity to app servers
      wait_for:
        host: "{{ item }}"
        port: 8080
        timeout: 10
      loop:
        - app1
      when: "'app' not in group_names"
      ignore_errors: true

    - name: Test connectivity to cache servers
      wait_for:
        host: "{{ item }}"
        port: 6379
        timeout: 10
      loop:
        - cache1
      when: "'cache' not in group_names"
      ignore_errors: true

    - name: Test connectivity to load balancer
      wait_for:
        host: lb1
        port: 80
        timeout: 10
      when: "'loadbalancer' not in group_names"
      ignore_errors: true

- name: Final verification summary
  hosts: localhost
  gather_facts: false
  tasks:
    - name: Display verification summary
      debug:
        msg: |
          ========================================
          Verification Summary
          ========================================
          - Web servers: {{ 'OK' if web_servers_ok is defined else 'SKIPPED' }}
          - App servers: {{ 'OK' if app_servers_ok is defined else 'SKIPPED' }}
          - Database servers: {{ 'OK' if database_servers_ok is defined else 'SKIPPED' }}
          - Cache servers: {{ 'OK' if cache_servers_ok is defined else 'SKIPPED' }}
          - Load balancer: {{ 'OK' if loadbalancer_ok is defined else 'SKIPPED' }}
          - Monitoring: {{ 'OK' if monitoring_ok is defined else 'SKIPPED' }}
          ========================================