[Nginx] Nginx反向代理websocket配置实例

注： 看官方文档说 Nginx 在 1.3 以后的版本才支持 websocket 反向代理，所以要想使用支持 websocket 的功能，必须升级到 1.3 以后的版本，因此我这边是下载的 Tengine 的最新版本测试的

wget http://tengine.taobao.org/download/tengine-2.0.3.tar.gz

yum -y install pcre*
yum -y install zlib*
yum -y install openssl*

tar -zxvf tengine-2.0.3.tar.gz cd tengine-2.0.3 ./configure --prefix=安装目录 make sudo make install

user apps apps;
worker_processes  4; # 这个由于我是用的虚拟机，所以配置的 4 ，另外 tengine 可以自动根据CPU数目设置进程个数和绑定CPU亲缘性
# worker_processes auto
# worker_cpu_affinity auto
 
error_log  logs/error.log;
pid    logs/nginx.pid;
#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 65535;
events {
  use epoll;
  worker_connections  65535;
}
# load modules compiled as Dynamic Shared Object (DSO)
#
#dso {
#  load ngx_http_fastcgi_module.so;
#  load ngx_http_rewrite_module.so;
#}
http {
  include     mime.types;
  default_type  application/octet-stream;
  server_names_hash_bucket_size 128;
  client_header_buffer_size 4k;
  large_client_header_buffers 4 32k;
  client_max_body_size 80m;
  sendfile on;
  tcp_nopush   on;
  client_body_timeout  5;
  client_header_timeout 5;
  keepalive_timeout  5;
  send_timeout     5;
  open_file_cache max=65535 inactive=20s;
  open_file_cache_valid 30s;
  open_file_cache_min_uses 1;
  tcp_nodelay on;
  fastcgi_connect_timeout 300;
  fastcgi_send_timeout 300;
  fastcgi_read_timeout 300;
  fastcgi_buffer_size 64k;
  fastcgi_buffers 4 64k;
  fastcgi_busy_buffers_size 128k;
  fastcgi_temp_file_write_size 128k;
  client_body_buffer_size  512k;
  proxy_connect_timeout  5;
  proxy_read_timeout     60;
  proxy_send_timeout     5;
  proxy_buffer_size    16k;
  proxy_buffers      4 64k;
  proxy_busy_buffers_size 128k;
  proxy_temp_file_write_size 128k;
  gzip on;
  gzip_min_length  1k;
  gzip_buffers   4 16k;
  gzip_http_version 1.0;
  gzip_comp_level 2;
  gzip_types     text/plain application/x-javascript text/css application/xml;
  gzip_vary on;
  proxy_temp_path   /dev/shm/temp;
  proxy_cache_path  /dev/shm/cache levels=2:2:2   keys_zone=cache_go:200m inactive=5d max_size=7g;
  log_format log_access  '$remote_addr - $remote_user [$time_local] "$request" "$request_time" "$upstream_response_time"'
        '$status $body_bytes_sent "$http_referer" '
        '"$http_user_agent" $http_x_forwarded_for $host $hostname' ;
  #websocket 需要加下这个
  map $http_upgrade $connection_upgrade {
    default upgrade;
    ''    close;
  }
  include /home/apps/tengine/conf/test.com;
}

upstream test.com {
   server 192.168.1.5:9000;
}
 
server {
  listen     80;
  server_name  test.com;
  #charset koi8-r;
  #access_log  logs/host.access.log  main;
  location  ^~  /websocket {
    proxy_pass http://test.com;
    proxy_redirect  off;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
  }
}

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''    close;
  }