一、实验拓扑
二、部署mysql
官网下载地址https://dev.mysql.com/downloads/mysql/
1、移除mariadb，安装所需应用
mysql-8.1.0 社区版 安装说明 官网下载地址https://dev.mysql.com/downloads/mysql/ 1、yum remove mariadb 2、yum -y install liaio net-tools 3、解压安装包，进入安装包执行以下命令 yum install -y perl-Module-Install.noarch yum install perl-Test-*.noarch -y rpm -ivh mysql-community-common-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-client-plugins-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-libs-8.1.0-1.el7.x86_64.rpm yum install -y perl-Module-Install.noarch rpm -ivh mysql-community-common-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-client-plugins-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-libs-8.1.0-1.el7.x86_64.rpm yum install perl-Test-*.noarch -y rpm -ivh mysql-community-libs-8.1.0-1.el7.x86_64.rpm yum remove mariadb-libs.x86_64 -y rpm -ivh mysql-community-libs-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-libs-compat-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-client-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-debuginfo-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-embedded-compat-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-icu-data-files-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-server-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-server-debug-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-devel-8.1.0-1.el7.x86_64.rpm yum install -y openssl rpm -ivh mysql-community-devel-8.1.0-1.el7.x86_64.rpm yum install -y openssl* rpm -ivh mysql-community-devel-8.1.0-1.el7.x86_64.rpm rpm -ivh mysql-community-test-8.1.0-1.el7.x86_64.rpm yum install -y perl* rpm -ivh mysql-community-test-8.1.0-1.el7.x86_64.rpm 4、启动MYSQL systemctl start mysqld 5、查看临时密码 cat /var/log/mysqld.log | grep password 6、登录MYSQL mysql -u root -p 7、修改密码 alter user 'root'@'localhost' identified by '123456.Com'; flush privileges 创建库jx create database jx; 8、远程登录用户创建 create user 'hy'@'%' identified by '123456.Com'; grant all privileges on 库名.表明 to 'hy'@'%' with grant options; flush privileges; 9、命令行操作mysql mysql -u root -p -e " show databases;"
2、同理在192.168.115.136上安装mysql并验证远程登录账户
mysql -u hy -p'123456.Com' -h 192.168.115.131 -P 3306 -e "show databases;"
三、部署Tomcat
在192.168.115.136/192.168.115.140部署tomcat
java环境
Java SE | Oracle Technology Network | Oracle Tomcat Apache Tomcat® - Welcome!
Java环境部署 1、which Java 查看Java的路径 Java -version 查看Java版本 如果版本达不到我们的安装要求就使用rm -rf 配合which java 删除现有版本 2、直接使用rpm -ivh jdk-20_linux-x64_bin.rpm 安装即可 安装完成后查看which Java Java -version Tomcat部署 Tomcat下载地址 https://tomcat.apache.org/ 1、解压 tar -xf apache-tomcat-9.0.80.tar.gz mv apache-tomcat-9.0.80 /usr/local/tomcat 2、建立软联建 启动命令 ln -s /usr/local/tomcat/bin/startup.sh /usr/bin/catup 停止命令 ln -s /usr/local/tomcat/bin/shutdown.sh /usr/bin/catdown
启动 catup
访问测试,ok
四、配置NGINX
192.168.115.141/192.168.115.142安装NGINX配置动静分离，负载均衡
1、安装
1. yum -y install epel-release.noarch 2. yum -y install nginx
2、配置
vim /etc/nginx/nginx.conf ##在http字段插入 upstream tomcat { server 192.168.115.136:8080; server 192.168.115.140:8080; } ##在server字段插入 location ~ \.jsp$ { ####这里是jsp proxy_pass http://tomcat; proxy_set_header Host $host; } location / { root /usr/share/nginx/html; index index.html; } ###保存退出重启服务
3、测试
分别访问192.168.115.141/192.168.115.142
静态页面
动态页面
五、 配置NGINX的双机热备提高可用性
yum -y install keepalived vim /etc/keepalived/keepalived.conf #######################配置#################################### ############################################################ ! Configuration File for keepalived global_defs { notification_email { acassen@firewall.loc failover@firewall.loc sysadmin@firewall.loc } notification_email_from Alexandre.Cassen@firewall.loc smtp_server 192.168.200.1 smtp_connect_timeout 30 router_id LVS_DEVEL ###从的编号要改动一下 LVS_DEVEL1 vrrp_skip_check_adv_addr #vrrp_strict vrrp_garp_interval 0 vrrp_gna_interval 0 } vrrp_instance VI_1 { state MASTER ###从改为BACKUP interface ens33 ###网卡名 virtual_router_id 51 priority 100 ###从的优先级要比主低 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.115.200 ###VIP用来访问的虚拟IP } } virtual_server 192.168.115.200 8080 { ###vip对应的真是IP 在下面 delay_loop 6 lb_algo rr persistence_timeout 50 protocol TCP real_server 192.168.115.136 8080 { ###这是Tomcat服务器的IP weight 1 HTTP_GET { url { path /testurl/test.jsp } url { path /testurl2/test.jsp } url { path /testurl3/test.jsp } connect_timeout 3 nb_get_retry 3 delay_before_retry 3 } } real_server 192.168.115.140 8080 { ###这是Tomcat服务器的IP weight 1 HTTP_GET { url { path /testurl/test.jsp } url { path /testurl2/test.jsp } connect_timeout 3 nb_get_retry 3 delay_before_retry 3 } } }
启动keepalived
systemctl start keepalived.service
看看主调器的IP
现在模拟主机宕机用备调度器访问VIP192.168.115.200
先查看备的IP，keepalived生效
静态页面
动态页面
依旧正常访问，经过简单的测试后我们可以在Tomcat上部署应用了
