Linux/Unix平台上搭建Nginx+Mongrel Cluster实现Rails高负载应用

本文讲述如何在Linux/Unix平台上面搭建Nginx+Mongrel Cluster实现Rails高负载的应用。

安装PCRE库

Ruby代码

$ ftp ftp.csx.cam.ac.uk
username: anonymous
> cd pub/software/programming/pcre/
> get pcre-7.4.tar.bz2
> quit
$ tar -jxvf pcre-7.4.tar.bz2
$ cd pcre-7.4
$ ./configure
$ make

不需要安装它，只是编译nginx时需要用到而已。

安装nginx

Ruby代码

Linux/Unix平台上搭建Nginx+Mongrel Cluster实现Rails高负载应用

$ wget http://sysoev.ru/nginx/nginx-0.5.32.tar.gz
$ tar -zxvf nginx-0.5.32.tar.gz
$ cd nginx-0.5.32
$ ./configure –with-pcre=../pcre-7.4
$ make
$ sudo make install

配置nginx
修改/usr/local/nginx/conf/nginx.conf:

Ruby代码

user someuser;
worker_processes 1;
error_log logs/error.log notice;
pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include conf/mime.types;
default_type application/octet-stream;
access_log logs/access.log;
sendfile on;
tcp_nopush on;
keepalive_timeout 65;
tcp_nodelay on;
gzip on;
gzip_min_length 1100;
gzip_buffers 4 8k;
gzip_types text/plain;
upstream mongrel {
server 127.0.0.1:8100;
server 127.0.0.1:8101;
server 127.0.0.1:8102;
server 127.0.0.1:8103;
}
server {
listen 80;
server_name your.server.com;
location / {
proxy_pass http://mongrel;
}
root /home/your/app/path;
access_log off;
rewrite_log on;
location ~ ^/$ {
if (-f /index.html){
rewrite (.*) /index.html last;
}
proxy_pass http://mongrel;
proxy_set_header Host $host;
}
location / {
if (!-f $request_filename.html) {
proxy_pass http://mongrel;
}
rewrite (.*) $1.html last;
}
location ~ .html {
root /home/your/app/path;
}
location ~* ^.+.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|doc|xls|
exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js|mov)$ {
root /home/your/app/path;
}
location / {
proxy_pass http://mongrel;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}
}

启动 nginx
$ sudo /usr/local/nginx/sbin/nginx
配置启动 mongrel cluster

Ruby代码

$ cd /home/your/app/path
$ sudo mongrel_rails cluster::configure -e production \
-p 8100 -N 4 -c /home/your/app/path -a 127.0.0.1 \
–user mongrel –group mongrel
$ sudo mongrel_rails cluster::start

配置 HTTP 认证
添加以下行到 nginx.conf:

Ruby代码

location / {
auth_basic "Restricted";
auth_basic_user_file conf/htpasswd;
}

要生成htpasswd文件, 使用Apache附带的htpasswd命令:

$ sudo htpasswd -bc conf/htpasswd user pass

关于htpasswd命令的使用，可使用’htpasswd -h’察看帮助。
清理工作

$ rm -rf pcre-7.4
$ rm -rf nginx-0.5.32

更新：如果遇到redirect_to��定向问题，请检查你的nginx版本，老版本使用$http_host变量，因此应该对proxy_set_header做相应修改：

proxy_set_header Host $host;

Linux/Unix平台上搭建Nginx+Mongrel Cluster实现Rails高负载应用

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