#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    tcp_nopush     on;
    tcp_nodelay     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;


    #开启gzip
    gzip off;
    #nginx对于静态文件的处理模块，开启后会寻找以.gz结尾的文件，直接返回，不会占用cpu进行压缩，如果找不到则不进行压缩
    gzip_static on;
    #nginx做前端代理时启用该选项，表示无论后端服务器的headers头返回什么信息，都无条件启用压缩
    gzip_proxied expired no-cache no-store private auth;
    #低于10kb的资源不压缩
    gzip_min_length 10k;
    #设置压缩所需要的缓冲区大小
    gzip_buffers 4 16k;
    #设置gzip压缩针对的HTTP协议版本
    gzip_http_version 1.0;
    #压缩级别1-9，越大压缩率越高，同时消耗cpu资源也越多，建议设置在5左右。
    gzip_comp_level 5;
    #需要压缩哪些响应类型的资源，多个空格隔开。不建议压缩图片.
    gzip_types text/plain application/javascript application/x-javascript text/javascript text/xml text/css application/xml;
    #配置禁用gzip条件，支持正则。此处表示ie6及以下不启用gzip（因为ie低版本不支持）
    gzip_disable "MSIE [1-6]\.";
    #是否添加“Vary: Accept-Encoding”响应头
    gzip_vary on;


    #ip限流每秒最多1000个请求
    limit_req_zone $binary_remote_addr zone=myRateLimit:15m rate=1000r/s;
    #限制并发连接数
    limit_conn_zone $binary_remote_addr zone=perip:10m;
    limit_conn_zone $server_name zone=perserver:10m;
server
    {
        listen 2080;
        server_name webServer;
        #dist上传的路径
        root  /usr/share/nginx/html;
        index index.html index.htm;
        charset utf-8;
        proxy_set_header HOST $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        # 获取客户端真实IP
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-Port $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        # 支持websocket连接
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        # 限制并发连接数
        #limit_conn perip 10; #每个IP最多10个并发连接
        # 客户端请求体限制10MB
        client_max_body_size 10m;

        # 避免访问出现 404 错误
        location / {
          root  /usr/share/nginx/html;  #dist上传的路径
          index  index.html index.htm;
          try_files $uri $uri/ @router;
        }

        # 生产环境（http）
        location ^~/api {
          # 去除api前缀
          rewrite ^/api/(.*)$ /$1 break;
          # 代理到后端服务器
          proxy_pass http://flow-app:9089/;
          # 限流，每秒最多1000个请求
          limit_req zone=myRateLimit burst=100 nodelay;
          #每个IP最多50个并发连接
          limit_conn perip 50;
        }

        # 生产环境（socket）
        location ^~/ws {
          # 去除ws前缀
          rewrite ^/ws/(.*)$ /$1 break;
          # 代理到后端服务器
          proxy_pass http://flow-app:9089/;
          # 支持websocket连接
          proxy_http_version 1.1; # 确保使用 HTTP/1.1
          proxy_set_header Upgrade $http_upgrade;
          proxy_set_header Connection "upgrade";
          proxy_set_header Host $host;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        location @router {
          rewrite ^.*$ /index.html last;
        }
    }



    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}