Nginx反向代理websocket配置实例

最近有一个需求,就是需要使用 nginx 反向代理 websocket,经过查找一番资料,目前已经测试通过,本文只做一个记录

复制代码 代码如下:

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

1.下载 tengine 最近的源码

复制代码 代码如下:

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

2.安装基础的依赖

复制代码 代码如下:

yum -y install pcre*

yum -y install zlib*

yum -y install openssl*

3.解压编译安装

复制代码 代码如下:

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

nginx.conf 的配置如下:

复制代码 代码如下:

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;

}

test.com 的配置文件内容:

复制代码 代码如下:

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";

}

}

解析 map 指令

上面 nginx.conf 配置中的 map $http_upgrade $connection_upgrade 的作用,参考 http://www.ttlsa.com/nginx/using-nginx-map-method/

该作用主要是根据客户端请求中 $http_upgrade 的值,来构造改变 $connection_upgrade 的值,即根据变量 $http_upgrade 的值创建新的变量 $connection_upgrade,创建的规则就是 {} 里面的东西,请见配置:

复制代码 代码如下:

map $http_upgrade $connection_upgrade {

default upgrade;

'' close;

}

其中的规则没有做匹配,因此使用默认的,即 $connection_upgrade 的值会一直是 upgrade。然后如果 $http_upgrade为空字符串的话,那值会是 close。个人的理解!

最近有一个需求,就是需要使用 nginx 反向代理 websocket,经过查找一番资料,目前已经测试通过,本文只做一个记录

复制代码 代码如下:

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

1.下载 tengine 最近的源码

复制代码 代码如下:

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

2.安装基础的依赖

复制代码 代码如下:

yum -y install pcre*

yum -y install zlib*

yum -y install openssl*

3.解压编译安装

复制代码 代码如下:

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

nginx.conf 的配置如下:

复制代码 代码如下:

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;

}

test.com 的配置文件内容:

复制代码 代码如下:

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";

}

}

解析 map 指令

上面 nginx.conf 配置中的 map $http_upgrade $connection_upgrade 的作用,参考 http://www.ttlsa.com/nginx/using-nginx-map-method/

该作用主要是根据客户端请求中 $http_upgrade 的值,来构造改变 $connection_upgrade 的值,即根据变量 $http_upgrade 的值创建新的变量 $connection_upgrade,创建的规则就是 {} 里面的东西,请见配置:

复制代码 代码如下:

map $http_upgrade $connection_upgrade {

default upgrade;

'' close;

}

其中的规则没有做匹配,因此使用默认的,即 $connection_upgrade 的值会一直是 upgrade。然后如果 $http_upgrade为空字符串的话,那值会是 close。个人的理解!