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Centos7环境下搭建Nginx反向代理多个Tomcat的负载均衡集群

分类: 文章 • 2023-11-09 20:00:10

本文原文链接: https://blog.csdn.net/java_kider/article/details/81675666

配合上一篇博文体验更佳:https://mp.csdn.net/postedit/88750139

1.Tomcat基础配置 ：

#安装JDK1.8
#安装tomcat7.0.93
cd /usr/local/src
#rz上传apache-tomcat-7.0.93.tar.gz
tar -zxvf apache-tomcat-7.0.93.tar.gz -C /usr/local/
cd /usr/local
cp -r apache-tomcat-7.0.93 ./tomcat70
cp -r apache-tomcat-7.0.93 ./tomcat71
cp -r apache-tomcat-7.0.93 ./tomcat72

vim /etc/profile  # 在文件末尾增加如下内容
export CATALINA70_BASE=/usr/local/tomcat70
export CATALINA70_HOME=/usr/local/tomcat70
export TOMCAT70_HOME=/usr/local/tomcat70

export CATALINA71_BASE=/usr/local/tomcat71
export CATALINA71_HOME=/usr/local/tomcat71
export TOMCAT71_HOME=/usr/local/tomcat71

export CATALINA72_BASE=/usr/local/tomcat72
export CATALINA72_HOME=/usr/local/tomcat72
export TOMCAT72_HOME=/usr/local/tomcat72

source /etc/profile  # 使配置文件生效
cd /usr/local/tomcat70/bin/
vim catalina.sh  # 找到如下那行注释，在该注释下，增加两行配置
# OS specific support.  $var _must_ be set to either true or false.
export CATALINA_BASE=$CATALINA70_BASE
export CATALINA_HOME=$CATALINA70_HOME

cd /usr/local/tomcat71/bin/
vim catalina.sh  # 找到如下那行注释，在该注释下，增加两行配置
# OS specific support.  $var _must_ be set to either true or false.
export CATALINA_BASE=$CATALINA71_BASE
export CATALINA_HOME=$CATALINA71_HOME

cd /usr/local/tomcat72/bin/
vim catalina.sh  # 找到如下那行注释，在该注释下，增加两行配置
# OS specific support.  $var _must_ be set to either true or false.
export CATALINA_BASE=$CATALINA72_BASE
export CATALINA_HOME=$CATALINA72_HOME

vim /usr/local/tomcat70/conf/server.xml
# 第一个端口，Server port节点端口
<Server port="7005" shutdown="SHUTDOWN"> 
# 第二个端口，Connector port节点端口，也即是Tomcat访问端口
<Connector port="7080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" URIEncoding="UTF-8" />
# 第三个端口，Connector port节点端口
<Connector port="7009" protocol="AJP/1.3" redirectPort="8443" /> 

vim /usr/local/tomcat71/conf/server.xml
# 第一个端口，Server port节点端口
<Server port="7105" shutdown="SHUTDOWN"> 
# 第二个端口，Connector port节点端口，也即是Tomcat访问端口
<Connector port="7180" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" URIEncoding="UTF-8" />
# 第三个端口，Connector port节点端口
<Connector port="7109" protocol="AJP/1.3" redirectPort="8443" /> 

vim /usr/local/tomcat72/conf/server.xml
# 第一个端口，Server port节点端口
<Server port="7205" shutdown="SHUTDOWN"> 
# 第二个端口，Connector port节点端口，也即是Tomcat访问端口
<Connector port="7280" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" URIEncoding="UTF-8" />
# 第三个端口，Connector port节点端口
<Connector port="7209" protocol="AJP/1.3" redirectPort="8443" />

2.Ngnix基础配置：

yum install gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel
#下载ngnix
cd /usr/local/src
wget http://nginx.org/download/nginx-1.14.2.tar.gz
#解压安装ngnix
tar -zxvf nginx-1.14.2.tar.gz
cd nginx-1.14.2
./configure --prefix=/usr/local/nginx
make && make install
cd /usr/local/nginx
ls
[echo]conf  html  logs  sbin

#修改配置文件
mv /usr/local/nginx/conf/nginx.conf /usr/local/nginx/conf/nginx.conf.bak
vim /usr/local/nginx/conf/nginx.conf

#nginx.conf详细内容
user nobody nobody;

worker_processes 2;

error_log /usr/local/nginx/logs/nginx_error.log crit;

pid /usr/local/nginx/logs/nginx.pid;

worker_rlimit_nofile 51200;

events

{

    use epoll;

    worker_connections 6000;

}

http

{

    include mime.types;

    default_type application/octet-stream;

    server_names_hash_bucket_size 3526;

    server_names_hash_max_size 4096;

    log_format combined_realip '$remote_addr $http_x_forwarded_for [$time_local]'

    ' $host "$request_uri" $status'

    ' "$http_referer" "$http_user_agent"';

    sendfile on;

    tcp_nopush on;

    keepalive_timeout 30;

    client_header_timeout 3m;

    client_body_timeout 3m;

    send_timeout 3m;

    connection_pool_size 256;

    client_header_buffer_size 1k;

    large_client_header_buffers 8 4k;

    request_pool_size 4k;

    output_buffers 4 32k;

    postpone_output 1460;

    client_max_body_size 10m;

    client_body_buffer_size 256k;

    client_body_temp_path /usr/local/nginx/client_body_temp;

    proxy_temp_path /usr/local/nginx/proxy_temp;

    fastcgi_temp_path /usr/local/nginx/fastcgi_temp;

    fastcgi_intercept_errors on;

    tcp_nodelay on;

    gzip on;

    gzip_min_length 1k;

    gzip_buffers 4 8k;

    gzip_comp_level 5;

    gzip_http_version 1.1;

    gzip_types text/plain application/x-javascript text/css text/htm 

    application/xml;

    add_header Access-Control-Allow-Origin *;

    include vhost/*.conf;

}

mkdir /usr/local/nginx/conf/vhost # 创建虚拟主机配置文件的存放目录
cd /usr/local/nginx/conf/vhost
vim www.xxx.com.conf  # 创建虚拟主机配置文件，内容如下


upstream 192.168.18.128 {	#虚拟机相对于宿主机的IP地址

        # 需要负载的server列表，可以直接使用ip

        server 192.168.18.128:7080 weight=1;

        server 192.168.18.128:7180 weight=1;
		
	server 192.168.18.128:7280 weight=1;

        # server www.xxx.com:8080 weight=1;

        # server www.xxx.com:9080 weight=3;

}

 

server{

  listen 80;

  autoindex on;

  server_name 192.168.18;

  access_log /usr/local/nginx/logs/access.log combined;

  index index.html index.htm index.jsp;

 

  location / {

        proxy_pass http://192.168.18.128; 

        add_header Access-Control-Allow-Origin *;

  }

}

 

 

#启动nginx
[[email protected] local]# cd /usr/local/nginx/sbin
[[email protected] sbin]# ./nginx -t  # 检查nginx配置文件
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[[email protected] sbin]# ./nginx -c /usr/local/nginx/conf/nginx.conf  # 启动nginx服务
[[email protected] sbin]# netstat -lntp | grep nginx  # 检查端口是否已监听
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      19623/nginx: master 
[[email protected] sbin]# ps aux |grep nginx  # 检查nginx进程是否正常
root      19623  0.0  0.0  20536   632 ?        Ss   21:38   0:00 nginx: master process ./nginx -c /usr/local/nginx/conf/nginx.conf
nobody    19624  0.7  0.0  22980  3212 ?        S    21:38   0:00 nginx: worker process
nobody    19625  0.7  0.0  22980  3212 ?        S    21:38   0:00 nginx: worker process
root      19629  0.0  0.0 112708   980 pts/0    S+   21:38   0:00 grep --color=auto nginx


#启动tomcat
/usr/local/tomcat70/bin/startup.sh #启动tomcat70
/usr/local/tomcat71/bin/startup.sh #启动tomcat71
/usr/local/tomcat72/bin/startup.sh #启动tomcat72

3.修改tomcat初始界面方便检测效果

vim /usr/local/tomcat70/webapps/ROOT/index.jsp 

<div id="congrats" class="curved container">

    <h2>I'm Tomcat70</h2>

</div>
vim /usr/local/tomcat71/webapps/ROOT/index.jsp 

<div id="congrats" class="curved container">

    <h2>I'm Tomcat71</h2>

</div>
vim /usr/local/tomcat72/webapps/ROOT/index.jsp 

<div id="congrats" class="curved container">

    <h2>I'm Tomcat72</h2>

</div>

4.设置防火墙规则，开放80端口：

firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --reload

5.宿主机端口转发访问虚拟机

Centos7环境下搭建Nginx反向代理多个Tomcat的负载均衡集群

Centos7环境下搭建Nginx反向代理多个Tomcat的负载均衡集群

 

Centos7环境下搭建Nginx反向代理多个Tomcat的负载均衡集群

开放各需要的端口：

firewall-cmd --zone=public --add-port=8080/tcp --permanent
firewall-cmd --zone=public --add-port=8089/tcp --permanent
firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --zone=public --add-port=22/tcp --permanent
firewall-cmd --reload

5.验证实验是否成功：输入网址后不断刷新

Centos7环境下搭建Nginx反向代理多个Tomcat的负载均衡集群

 Centos7环境下搭建Nginx反向代理多个Tomcat的负载均衡集群

至此负载集群搭建完毕

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