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在Openshift 上安装Nginx

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上篇已经安装了Tornado 运行环境了,现在要装上Nginx 作反向代理和均衡负载。

安装Nginx

下载当前Ngina 稳定版 http://nginx.org/download/nginx-1.4.3.tar.gz

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cd $OPENSHIFT_DATA_DIR
wget http://nginx.org/download/nginx-1.4.3.tar.gz
tar zxf nginx-1.4.3.tar.gz

在安装前要下载一个PCRE lib

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cd $OPENSHIFT_DATA_DIR
wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.31.tar.bz2
tar jxf pcre-8.31.tar.bz2

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cd nginx-1.4.3
./configure --prefix=$OPENSHIFT_DATA_DIR --with-pcre=$OPENSHIFT_DATA_DIR/pcre-8.31

会看到类似下面的内容

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Configuration summary
  + using PCRE library: /tmp//pcre-8.31
  + OpenSSL library is not used
  + md5: using system crypto library
  + sha1: using system crypto library
  + using system zlib library
 
  nginx path prefix: "/var/lib/stickshift/c45cdc9a27944dc5b1cd7cb9e5c9f8c7/mysite/runtime/"
  nginx binary file: "/var/lib/stickshift/c45cdc9a27944dc5b1cd7cb9e5c9f8c7/mysite/runtime//sbin/nginx"
  nginx configuration prefix: "/var/lib/stickshift/c45cdc9a27944dc5b1cd7cb9e5c9f8c7/mysite/runtime//conf"
  nginx configuration file: "/var/lib/stickshift/c45cdc9a27944dc5b1cd7cb9e5c9f8c7/mysite/runtime//conf/nginx.conf"
  nginx pid file: "/var/lib/stickshift/c45cdc9a27944dc5b1cd7cb9e5c9f8c7/mysite/runtime//logs/nginx.pid"
  nginx error log file: "/var/lib/stickshift/c45cdc9a27944dc5b1cd7cb9e5c9f8c7/mysite/runtime//logs/error.log"
  nginx http access log file: "/var/lib/stickshift/c45cdc9a27944dc5b1cd7cb9e5c9f8c7/mysite/runtime//logs/access.log"
  nginx http client request body temporary files: "client_body_temp"
  nginx http proxy temporary files: "proxy_temp"
  nginx http fastcgi temporary files: "fastcgi_temp"
  nginx http uwsgi temporary files: "uwsgi_temp"
  nginx http scgi temporary files: "scgi_temp"

安装

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make && make install

配置Nginx

这个比较麻烦,看了高手使用模板的方法,自己也试了一下,因为我要替换的不仅仅是端口和ip,还有静态文件路径,在有/时sed 会抛出一个错误,在官方论坛看了半天解决不了,只好放弃了,老老实实的填上自己的数据。下面是我的一份标准的开多个实例的配置。

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#user nobody

worker_processes  2;

events {
    use epoll;
    worker_connections  1024;
}

    
http {
    
    charset utf-8;
    
    include       mime.types;
    default_type  application/octet-stream;
    
    sendfile        on;
    keepalive_timeout  265;
    #tcp_nodelay  on;
    client_max_body_size 50M;
    client_body_buffer_size 512k;
    
    gzip  on;
    gzip_disable "MSIE [1-6]\.(?!.*SV1)";

    upstream frontends {
        server $OPENSHIFT_DIY_IP:15001;
        server $OPENSHIFT_DIY_IP:15002;
    }
    
    server {
        listen       8080;
        server_name  localhost;
        
        location ^~ /static/ {
            root $OPENSHIFT_REPO_DIR;
            expires max;
        }
        
        location ^~ /upload/ {
            root $OPENSHIFT_DATA_DIR;
            expires max;
        }
        
        location / {
            proxy_pass_header Server;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_set_header  X-Real-IP  $remote_addr;
            proxy_set_header X-Scheme $scheme;
            proxy_pass http://frontends;
        }
        
        error_page     500 502 503 504 /50x.html;
        location = /50x.html {
            root  html;
        }
    }


}

这里我在后端启动了两个实例,对应的两个端口 15001 和 15002,用Nginx 来平衡负载。

看看top 图:openshift-tornado-nginx-1.gif

openshift-tornado-nginx-1.gif

在Openshift 上的demo Openshift tornado

参考文档 https://www.openshift.com/blogs/lightweight-http-serving-using-nginx-on-openshift

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