Nginx 反向代理 Demo

关于Nginx的基础理解,淘宝的文档已经介绍很清楚了：http://tengine.taobao.org/book/
以下记录些具体的使用流程，方便日后查看。

一. 整体配置步骤：

1. 安装Nginx。
   1. 安装依赖包，包括 pcre 以及 zlib 依赖。centos7的 root 权限下 yum list 搜索，再安装。
   2. 下载Nginx。./configure ---> make ---> make install.（安装成功看提示就知道安装在哪，一般在/usr/local/nginx）
   3. 访问 wget 127.0.0.1 即可看到安装成功。 
2. 准备一个机子放Web应用，例如我的应用地址为 192.168.1.99.157:8081/springmvc。再准备一个机子（我的安装Nginx的机子的IP为192.168.199.176）安装上述的Nginx（其实你用同一个机子也是可以测试的，用不同的 端口当做不同的机子）
3. 在安装了Nginx的机子上修改nginx.conf主配置文件。例如如下的配置文件(测试版)：

   1. <p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"> </code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>worker_processes  2;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"> </code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>events {</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    worker_connections  1024;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>}</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"> </code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>http {</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    server_tokens off;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span></span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    include       mime.types;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    default_type  application/octet-stream;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span></span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    charset utf-8;   </span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"> </code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    server_names_hash_bucket_size 128;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    client_header_buffer_size 32k;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    large_client_header_buffers 4 32k;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    client_max_body_size 300m;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    tcp_nopush on;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    tcp_nodelay on;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    client_body_buffer_size 512k;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    proxy_connect_timeout 300s;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    proxy_read_timeout 300s;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    proxy_send_timeout 300s;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    proxy_buffer_size 64k;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    proxy_buffers 4 32k;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    proxy_busy_buffers_size 64k;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    proxy_temp_file_write_size 128k;</span></code></p>
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                      <p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    proxy_ignore_client_abort on; </span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    gzip on;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    gzip_http_version 1.1;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    gzip_min_length 1k;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    gzip_buffers 4 16k;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    gzip_types text/plain application/x-javascript text/css application/xml;     </span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    gzip_comp_level 2;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    gzip_vary on;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"> </code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>                      '$status $body_bytes_sent "$http_referer" '</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>                      '"$http_user_agent" "$http_x_forwarded_for"';</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"> </code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    upstream apm {</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>        server 192.168.199.157:8081;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    }</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span></span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    server {</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>        listen  8080;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>        server_name 192.168.199.176;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>        charset utf-8;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>        location /springmvc/ {</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>        	proxy_pass http://apm;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>        }</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    }</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"> </code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    sendfile        on;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>    keepalive_timeout  65;</span></code></p><p><codeLiberation Mono',Menlo,Courier,monospace; word-wrap:break-word"><span>}</span></code></p></p>

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4. 访问 192.168.199.176:8080/springmvc/ 时，成功访问到 192.168.199.157:8081/springmvc 的首页