阿里云ubuntu14.04 Nginx反向代理Nodejs

摘要：通过命令行登陆阿里云服务器下载源码包进入下载路径其中文件是软件的自动脚本程序。运行自动脚本会完成两项工作一是检查环境，根据环境检查结果生成代码二是生成编译代码需要的文件。在服务器启动注意监听的端口与配置的要一致。

0.通过ssh命令行登陆阿里云服务器

ssh root@your_ip_address

1.下载源码包

 wget http://nginx.org/download/nginx-1.9.10.tar.gz

2.进入下载路径

$ ./configure
$ make
$ make install

其中configure文件是Nginx软件的自动脚本程序。运行configure自动脚本会完成两项工作：

一是检查环境，根据环境检查结果生成C代码；
二是生成编译代码需要的Makefile文件。

安装后程序在usr/local下面，执行

$ ./sbin/nginx

可以使用Linux自带的ps工具

ps -ef | grep nginx

root     14358     1  0 11:20 ?        00:00:00 nginx: master process ./sbin/nginx
nobody   14359 14358  0 11:20 ?        00:00:00 nginx: worker process
nobody   14360 14358  0 11:20 ?        00:00:00 nginx: worker process
nobody   14361 14358  0 11:20 ?        00:00:00 nginx: worker process
root     14433 14278  0 12:32 pts/1    00:00:00 grep --color=auto nginx

显示启动成功，包括一个主线程和三个worker线程。

下面是整个nginx.conf配置文件

#user  nobody;
worker_processes  3;
.
#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;
    #log_format  main  "$remote_addr - $remote_user [$time_local] "$request" "
    #                  "$status $body_bytes_sent "$http_referer" "
    #                  ""$http_user_agent" "$http_x_forwarded_for"";

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    upstream nodejs__upstream {
        server 127.0.0.1:3000;
        eepalive 64;
    }
    server {
        listen       80;
        server_name  jianqunzhang.com www.jianqunzhang.com;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
               proxy_set_header   X-Real-IP            $remote_addr;
                proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
                proxy_set_header   Host                   $http_host;
                proxy_set_header   X-NginX-Proxy    true;
                proxy_set_header   Connection "";
                proxy_http_version 1.1;
                proxy_pass         http://nodejs__upstream;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ .php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ .php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache"s document root
        # concurs with nginx"s one
        #
        #location ~ /.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

其中主要增加修改如下配置

upstream nodejs__upstream {
    server 127.0.0.1:3000;
    keepalive 64;
}
server {
    listen       80;
    server_name  jianqunzhang.com www.jianqunzhang.com;
    
    #charset koi8-r;
    
    #access_log  logs/host.access.log  main;
    
    location / {
            proxy_set_header   X-Real-IP $remote_addr;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   Host $http_host;
            proxy_set_header   X-NginX-Proxy    true;
            proxy_set_header   Connection "";
            proxy_http_version 1.1;
            proxy_pass         http://nodejs__upstream;
}

其中proxy_set_header指令可以更改Nginx服务器接收到的客户端请求的请求头信息，然后将新的请求头发送给被代理的服务器。

在服务器启动nodejs,注意监听的端口与配置的nginx.conf要一致。本配置直接监听3000端口。
如果proxy_pass http://nodejs__upstream;在不设置http://时，要注意

upstream nodejs__upstream {
    server 127.0.0.1:3000;
    keepalive 64;
}

的server 要加上http://，如

upstream nodejs__upstream {
    server http://127.0.0.1:3000;
    keepalive 64;
}

启动nodejs后，访问所设置的域名即可。

PM2 is a production process manager for Node.js applications with a built-in load balancer. It allows you to keep applications alive forever, to reload them without downtime and to facilitate common system admin tasks.

npm i pm2 -g

pm2 start bin/www

到目前为止，整个项目算是跑起来了。记录一下同时也希望对小伙伴们有所帮助。