编写Ansible角色实现分布式LNMP安装

# 在Ansible的roles/lnmp/tasks/目录下创建一个install.yml文件
---
# 安装Nginx
- name: Install Nginx
  apt:
    name: nginx
    state: present
 
# 启动并启用Nginx服务
- name: Start and Enable Nginx Service
  systemd:
    name: nginx
    state: started
    enabled: yes
 
# 安装MySQL
- name: Install MySQL
  apt:
    name: mysql-server
    state: present
 
# 启动并启用MySQL服务
- name: Start and Enable MySQL Service
  systemd:
    name: mysql
    state: started
    enabled: yes
 
# 安装PHP及常用扩展
- name: Install PHP and Extensions
  apt:
    name: "{{ item }}"
    state: present
  loop:
    - php-fpm
    - php-mysql
    - php-xml
    - php-curl
    - php-gd
    - php-imap
 
# 启动并启用PHP-FPM服务
- name: Start and Enable PHP-FPM Service
  systemd:
    name: php{{ php_version }}-fpm
    state: started
    enabled: yes
 
# 复制配置文件并重启服务
- name: Copy Configuration Files and Restart Services
  copy:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
  notify:
    - Restart Nginx Service
    - Restart PHP-FPM Service
  loop:
    - { src: "files/nginx.conf", dest: "/etc/nginx/nginx.conf" }
    - { src: "files/php-fpm.conf", dest: "/etc/php/{{ php_version }}/fpm/php-fpm.conf" }
    - { src: "files/www.conf", dest: "/etc/php/{{ php_version }}/fpm/pool.d/www.conf" }
 
# 文件变更后需要重启的任务
handlers:
  - name: Restart Nginx Service
    systemd:
      name: nginx
      state: restarted
 
  - name: Restart PHP-FPM Service
    systemd:
      name: php{{ php_version }}-fpm
      state: restarted
 
# 在Ansible的roles/lnmp/files/目录下准备相应的配置文件
# nginx.conf, php-fpm.conf, www.conf等配置文件

这个Ansible角色实现了LNMP架构的分布式安装，包括安装Nginx、MySQL和PHP及常用的PHP模块，并配置PHP-FPM和Nginx。在实际使用时，需要调整相关的配置文件路径和版本号等变量。