Nginx简述与业务场景指引

#ubuntu
apt install nginx

#main                                # 全局配置

events {                            # nginx工作模式配置
}

http {                                # http设置
    ....

    server {                        # 服务器主机配置
        ....
        location {                    # 路由配置
            ....
        }

        location path {
            ....
        }

        location otherpath {
            ....
        }
    }

    server {
        ....

        location {
            ....
        }
    }

    upstream name {                    # 负载均衡配置
        ....
    }
}

server {
    listen 80;
    server_name admin.domain.name;
    root /home/www/dist;
    index index.html;

    location / {
        try_files $uri $uri/ /index.html;
    }
}

server {
    # web
    listen 8081;
    server_name  admin.domain.name;
    location / {
        if ($request_method = 'OPTIONS') {
            # 预检请求的响应头 允许跨站访问
            add_header 'Access-Control-Allow-Origin' '*';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
            add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization';
            add_header 'Access-Control-Allow-Credentials' 'true';
            add_header 'Access-Control-Max-Age' 1728000;
            add_header 'Content-Type' 'text/plain charset=UTF-8';
            add_header 'Content-Length' 0;
            return 204;
        }

        proxy_pass http://localhost:8081;
        proxy_set_header Host $host; 
        proxy_set_header X-Real-IP $remote_addr; #如果对源IP有需求的话需要设置这个
    }
}

server {
    listen 80;
    server_name 1.117.128.7;
    root /home/www/dist;
    index index.html;

    location / {
        try_files $uri $uri/ /index.html;
    }
}