Nginx reverse proxy websocket configuration example-PHP Tutorial-php.cn

This article mainly introduces Nginx reverse proxy websocket configuration examples. This article is a summary of the project requirements after successful configuration. Friends in need can refer to it

There is a recent requirement that requires the use of nginx reverse Proxy websocket, after searching some information, it has been tested and passed. This article only makes a record

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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

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1. Download tengine Recent source code

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

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2. Install basic dependenciesPackage

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

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3. Unzip, compile and install

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

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nginx.conf configuration is as follows:

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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; }

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test. com configuration file content:

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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"; } }

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Parse the map command

nginx above For the function of map $http_upgrade $connection_upgrade in the .conf configuration, please refer to http://www.ttlsa.com/nginx/using-nginx-map-method/

This function is mainly based on the $ in the client request The value of http_upgrade is used to construct and change the value of $connection_upgrade, that is, a new variable $connection_upgrade is created based on the value of the variable $http_upgrade. The rules created are the contents of {}, please see configuration:

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

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The rules are not matched, so the default is used, that is, the value of $connection_upgrade will always be upgrade. Then if $http_upgrade is an empty string, the value will be close. Personal understanding!

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