nginx负载均衡以及动静分离

nginx负载均衡以及动静分离

Nginx 服务器：192.168.11.133:80Tomcat服务器1：192.168.11.4:80Tomcat服务器2：192.168.11.10:8080 192.168.80.101:8081

1.部署Nginx 负载均衡器systemctl stop firewalldsetenforce 0

yum -y install pcre-devel zlib-devel openssl-devel gcc gcc-c++ make

useradd -M -s /sbin/nologin nginx

cd /opttar zxvf nginx-1.12.0.tar.gz -C /opt/

cd nginx-1.12.0/./configure \--prefix=/usr/local/nginx \--user=nginx \--group=nginx \--with-file-aio \ #启用文件修改支持--with-\ #启用状态统计--with-\ #启用 gzip静态压缩--with-\ #启用 flv模块，提供对 flv 视频的伪流支持--with- #启用 SSL模块，提供SSL加密功能--with-stream #启用 stream模块，提供4层调度

./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-file-aio --with---with---with---with-stream

make && make install

ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin/

vim /lib/systemd/system/nginx.service[Unit]Description=nginxAfter=network.target[Service]Type=forkingPIDFile=/usr/local/nginx/logs/nginx.pidExecStart=/usr/local/nginx/sbin/nginxExecrReload=/bin/kill -s HUP $MAINPIDExecrStop=/bin/kill -s QUIT $MAINPIDPrivateTmp=true[Install]WantedBy=multi-user.target

2.部署2台Tomcat 应用服务器systemctl stop firewalldsetenforce 0

tar zxvf jdk-8u91-linux-x64.tar.gz -C /usr/local/

vim /etc/profileexport JAVA_HOME = /usr/local/jdk1.8.0_91export JRE_HOME= $ {JAVA_HOME} / jreexport CLASSPATH = . : $ {JAVA_HOME}/lib:${JREHOME}/libexport PATH= $ { JAVA HOME } / bin:$ { JRE_HOME }/bin:$ PATH

source /etc/profile

tar zxvf apache-tomcat-8.5.16.tar.gz

mv /opt/apache-tomcat-8.5.16/ /usr/local/tomcat

/usr/local/tomcat/bin/shutdown.sh /usr/local/tomcat/bin/startup.sh

3.动静分离配置（1）Tomcat1 server 配置mkdir /usr/local/tomcat/webapps/testvim /usr/local/tomcat/webapps/test/index.jsp<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> #指定为 test1 页面<% out.println("动态页面 1,/usr/local/tomcat/conf/server.xml#由于主机名 name 配置都为 localhost，需要删除前面的 HOST 配置

（2）Tomcat2 server 配置mkdir /usr/local/tomcat/tomcat1/webapps/test /usr/local/tomcat/tomcat2/webapps/test

vim /usr/local/tomcat/tomcat1/webapps/test/index.jsp<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> #指定为 test2 页面<% out.println("动态页面 2,/usr/local/tomcat/tomcat1/conf/server.xml#删除前面的 HOST 配置

/usr/local/tomcat/tomcat1/bin/shutdown.sh /usr/local/tomcat/tomcat1/bin/startup.sh

vim /usr/local/tomcat/tomcat2/webapps/test/index.jsp<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> #指定为 test3 页面<% out.println("动态页面 3,/usr/local/tomcat/tomcat2/conf/server.xml#删除前面的 HOST 配置

/usr/local/tomcat/tomcat2/bin/shutdown.sh /usr/local/tomcat/tomcat2/bin/startup.sh

（3）Nginx server 配置#准备静态页面和静态图片echo '这是静态页面' > /usr/local/nginx/html/index.htmlmkdir /usr/local/nginx/html/imgcp /root/game.jpg /usr/local/nginx/html/img

vim /usr/local/nginx/conf/nginx.conf......{......#gzip on;

#配置负载均衡的服务器列表，weight参数表示权重，权重越高，被分配到的概率越大 upstream tomcat_server { server 192.168.80.100:8080 weight=1; server 192.168.80.101:8080 weight=1; server 192.168.80.101:8081 weight=1; } server { listen 80; server_name kgc.com; charset utf-8; #access_log logs/host.access.log main; #配置Nginx处理动态页面请求，将 .jsp文件请求转发到Tomcat 服务器处理 location ~ .*\.jsp$ { proxy_pass HOST $host;##把$remote_addr赋值给X-Real-IP，来获取源IPproxy_set_header X-Real-IP $remote_addr;##在nginx 作为代理服务器时，设置的IP列表，会把经过的机器ip，代理机器ip都记录下来proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;}

#配置Nginx处理静态图片请求 location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|css)$ { root /usr/local/nginx/html/img; expires 10d; } location / { root html; index index.html index.htm; }

......}......}

测试负载均衡效果，不断刷新浏览器测试浏览器访问 http://192.168.11.133/index.jsp

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