user  nginx;
worker_processes  1;
error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;
events {
  worker_connections  1024;
}
http {
  include       /etc/nginx/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  /var/log/nginx/access.log  main;
  sendfile        on;
  keepalive_timeout  65;
  upstream cool {
      server midway:8001;
  }

  server {
    listen       80;
    server_name  localhost;
    location / {
      root   /app;
      index  index.html;
      try_files $uri $uri/ /index.html;
    }
    location /api/ 
    {
        proxy_pass http://cool/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header REMOTE-HOST $remote_addr;

        #缓存相关配置
        #proxy_cache cache_one;
        #proxy_cache_key $host$request_uri$is_args$args;
        #proxy_cache_valid 200 304 301 302 1h;

        #持久化连接相关配置
        proxy_connect_timeout 3000s;
        proxy_read_timeout 86400s;
        proxy_send_timeout 3000s;
        #proxy_http_version 1.1;
        #proxy_set_header Upgrade $http_upgrade;
        #proxy_set_header Connection "upgrade";

        add_header X-Cache $upstream_cache_status;

        #expires 12h;
    }

    # socket需额外配置
    location /socket {
        proxy_pass http://cool/socket;
        proxy_connect_timeout 3600s; #配置点1
        proxy_read_timeout 3600s; #配置点2,如果没效,可以考虑这个时间配置长一点
        proxy_send_timeout 3600s; #配置点3
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header REMOTE-HOST $remote_addr;
        #proxy_bind $remote_addr transparent;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        rewrite /socket/(.*) /$1 break;
        proxy_redirect off;

    }
  }
}