ansible批量部署nginx脚本

以下是一个简单的ansible批量部署nginx的脚本示例：

1. 创建一个新的ansible playbook文件，例如nginx.yml。

2. 在playbook文件中定义主机组和变量，例如：

- hosts: webservers
  vars:
    nginx_version: "1.18.0"
    nginx_conf_file: "/etc/nginx/nginx.conf"
    nginx_sites_dir: "/etc/nginx/sites-enabled"
    nginx_service_name: "nginx"

3. 定义任务和角色，用于安装和配置nginx，例如：

tasks:
  - name: Install nginx
    apt:
      name: nginx
      state: present
      update_cache: yes
      cache_valid_time: 3600
    vars:
      ansible_python_interpreter: /usr/bin/python3

  - name: Configure nginx
    template:
      src: nginx.conf.j2
      dest: "{{ nginx_conf_file }}"
      mode: 0644
    notify:
      - restart nginx

  - name: Enable default site
    file:
      src: "{{ nginx_sites_dir }}/default"
      dest: "{{ nginx_sites_dir }}/default.conf"
      state: link
      force: yes
    notify:
      - restart nginx

handlers:
  - name: restart nginx
    service:
      name: "{{ nginx_service_name }}"
      state: restarted

4. 创建一个nginx配置模板文件，例如nginx.conf.j2，用于自定义nginx服务器块的配置：

user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
    worker_connections 768;
    # multi_accept on;
}

http {
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    # access_log /var/log/nginx/access.log;
    # error_log /var/log/nginx/error.log;

    gzip on;
    gzip_disable "msie6";

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    include /etc/nginx/conf.d/*.conf;
    include {{ nginx_sites_dir }}/*;
}

5. 运行ansible playbook来部署nginx：

ansible-playbook -i hosts nginx.yml

注意事项：

- 确保在运行playbook之前在hosts文件中定义了正确的主机名或IP地址。
- 在运行playbook之前，请确保在远程主机上安装了ansible和python。
- 在运行playbook之前，请确保在远程主机上启用了SSH身份验证。