- 编译安装 HAProxy 新版 LTS 版本，编译安装 Keepalived
- 开启HAProxy多线程，线程数与CPU核心数保持一致,并绑定CPU核心
- 因业务较多避免配置文件误操作，需要按每业务一个配置文件并统一保存至/etc/haproxy/conf.d目录中
- 基于ACL实现单IP多域名负载功能,两个域名的业务: www.yanlinux.org 和 www.yanlinux.edu
- 实现MySQL主从复制
- 对 www.yanlinux.edu 域名基于HAProxy+Nginx+Tomcat+MySQL，并实现Jpress的JAVA应用
- 对 www.yanlinux.org 域名基于HAProxy+Nginx+PHP+MySQL+Redis，实现phpMyadmin的PHP应用,并实现Session会话保持统一保存到Redis
1 DNS服务器配置
在10.0.0.7主机上搭建www.yanlinux.org(VIP:10.0.0.100)和www.yanlinux.edu(VIP:10.0.0.200)的DNS解析。
配置的关键：
- 在主配置文件
/etc/named.conf中要将listen-on port 53 { 127.0.0.1; }中的127.0.0.1改为localhost；还需要将allow-query { localhost; };前面加上//注释掉，或者将其中的localhost改为any，或者在后面加上各个网段信息。 - 各个域名解析库文件的权限应改为641，属组为
named
#利用脚本自动搭建www.yanlinux.org的dns解析配置
[root@dns ~]$ cat install_dns.sh
#!/bin/bash
DOMAIN=yanlinux.org
HOST=www
HOST_IP=10.0.0.100
CPUS=`lscpu |awk '/^CPU(s)/{print $2}'`
. /etc/os-release
color () {
RES_COL=60
MOVE_TO_COL="echo -en \033[${RES_COL}G"
SETCOLOR_SUCCESS="echo -en \033[1;32m"
SETCOLOR_FAILURE="echo -en \033[1;31m"
SETCOLOR_WARNING="echo -en \033[1;33m"
SETCOLOR_NORMAL="echo -en E[0m"
echo -n "$1" && $MOVE_TO_COL
echo -n "["
if [ $2 = "success" -o $2 = "0" ] ;then
${SETCOLOR_SUCCESS}
echo -n $" OK "
elif [ $2 = "failure" -o $2 = "1" ] ;then
${SETCOLOR_FAILURE}
echo -n $"FAILED"
else
${SETCOLOR_WARNING}
echo -n $"WARNING"
fi
${SETCOLOR_NORMAL}
echo -n "]"
echo
}
install_dns () {
if [ $ID = 'centos' -o $ID = 'rocky' ];then
yum install -y bind bind-utils
elif [ $ID = 'ubuntu' ];then
color "不支持Ubuntu操作系统，退出!" 1
exit
#apt update
#apt install -y bind9 bind9-utils
else
color "不支持此操作系统，退出!" 1
exit
fi
}
config_dns () {
sed -i -e '/listen-on/s/127.0.0.1/localhost/' -e '/allow-query/s/localhost/any/' /etc/named.conf
cat >> /etc/named.rfc1912.zones /var/named/$DOMAIN.zone > DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7 > www.yanlinux.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7 > www.yanlinux.edu
;; global options: +cmd
;; Got answer:
;; ->>HEADER2 客户端配置
在10.0.0.17主机上，设置DNS服务器的IP作为其DNS，做这一步之前一定要在搭建DNS服务器时，做好上面提到的第一个关键点，不然客户端不能正确解析到域名。
[root@internet ~]$ cat /etc/sysconfig/network-scripts/ifcfg-eth0
BOOTPROTO="static"
NAME="eth0"
DEVICE="eth0"
IPADDR=10.0.0.17
PREFIX=24
GATEWAY=10.0.0.2
DNS1=10.0.0.7 #改成DNS服务器的IP
#DNS2=114.114.114.114
ONBOOT="yes"
#重启网络服务
[root@internet ~]$ systemctl restart network
[root@internet network-scripts]$ cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 10.0.0.7
#测试解析
[root@internet ~]$ host www.baidu.com
www.baidu.com is an alias for www.a.shifen.com.
www.a.shifen.com has address 36.152.44.95
www.a.shifen.com has address 36.152.44.96
[root@internet ~]$ dig www.yanlinux.org
; > DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7 > www.yanlinux.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7 > www.yanlinux.edu
;; global options: +cmd
;; Got answer:
;; ->>HEADER3 部署NFS主备服务
- 搭建主NFS服务器
[root@NFS ~]$ yum -y install nfs-utils
[root@NFS ~]$ systemctl enable --now nfs-server.service
#创建用于传输的用户
[root@NFS ~]$ groupadd -g 666 www
[root@NFS ~]$ useradd -u 666 www -g 666
#创建NFS共享文件夹
[root@NFS ~]$ mkdir /data/www -p
[root@NFS ~]$ chown -R www. /data/www/
[root@NFS ~]$ mkdir /data/web2
[root@NFS ~]$ chown -R www.www /data/web2/
#添加共享配置
[root@NFS ~]$ vi /etc/exports
/data/www *(rw,all_squash,anonuid=666,anongid=666) #具有读写权限，所有远程用户映射为666对应的用户
/data/web2 *(rw,all_squash,anonuid=666,anongid=666)
#重启
[root@NFS ~]$ systemctl restart nfs-server.service
[root@NFS ~]$ showmount -e 10.0.0.68
Export list for 10.0.0.68:
/data/web2 *
/data/www *
#下载sersync，实现数据实时备份同步到NFS备份服务器
#下载sersync，解压，设置PATH变量
[root@NFS ~]$ wget https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/sersync/sersync2.5.4_64bit_binary_stable_final.tar.gz
[root@NFS ~]$ tar xf sersync2.5.4_64bit_binary_stable_final.tar.gz
[root@NFS ~]$ cp -a GNU-Linux-x86/ /usr/local/sersync
[root@NFS ~]$ echo "PATH=/usr/local/sersync:$PATH" > /etc/profile.d/sersync.sh
[root@NFS ~]$ source /etc/profile.d/sersync.sh
#生成验证文件
[root@NFS ~]$ echo lgq123456 > /etc/rsync.pas
[root@NFS ~]$ chmod 600 /etc/rsync.pas
#备份sersync配置文件，修改配置文件
[root@NFS ~]$ cp -a /usr/local/sersync/confxml.xml{,.bak}
##web1（可道云）共享业务配置
[root@NFS ~]$ vi /usr/local/sersync/confxml.xml
1
2
3
7
12
13
22
23
24 ##修改此行，需要同步的源目录
25
29
30
7
12
13
22
23
24 #只需要将web1中的这个共享目录改成web2的
25
29
30
#后台独立运行web2对应服务
[root@NFS sersync]$ sersync2 -dro /usr/local/sersync/jpress.xml
#为了防止服务器重启后手动执行的服务断开，将执行命令写进文件中，随开机启动
[root@NFS ~]$ echo -e "/usr/local/sersync/sersync2 -dro /usr/local/sersync/confxml.xml &> /dev/nulln/usr/local/sersync/sersync2 -dro /usr/local/sersync/jpress.xml &> /dev/null" > /etc/profile.d/sersync2.sh
[root@NFS ~]$ chmod +x /etc/profile.d/sersync2.sh
- 部署nfs备份服务器
#在10.0.0.78 NFS备份服务器以独立服务方式运行rsync并实现验证功能
[root@NFS-bak ~]$ yum -y install rsync-daemon
#创建备份目录
[root@NFS-bak ~]$ mkdir /data/backup -p
[root@NFS-bak ~]$ mkdir /data/web2-backup
#修改配置文件，添加以下信息
[root@NFS-bak ~]$ vi /etc/rsyncd.conf
uid = www #指定以哪个用户来访问共享目录，将之指定为生成的文件所有者，默认是nobody
gid = www
max connections = 0
ignore errors
exclude = lost+found/
log file = /var/log/rsyncd.log
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsyncd.lock
reverse lookup = no
[backup] #每个模块名对应一个不同的path目录，如果同名后面模块生效
path = /data/backup/
comment = backup dir
read only = no #默认是yes,即只读
auth users = rsyncuser #默认anonymous可以访问rsync服务器，主服务器中指定的用户
secrets file = /etc/rsync.pas
[web2-backup]
path = /data/web2-backup/
comment = backup dir
read only = no
auth users = rsyncuser
secrets file = /etc/rsync.pas
#创建验证文件
[root@NFS-bak ~]$ echo "rsyncuser:lgq123456" > /etc/rsync.pas
#创建传输用户
[root@NFS-bak ~]$ chmod 600 /etc/rsync.pas
[root@NFS-bak ~]$ groupadd -g 666 www
[root@NFS-bak ~]$ useradd -u 666 www -g 666
[root@NFS-bak ~]$ chown www.www /data/backup/ -R
[root@NFS-bak ~]$ chown -R www.www /data/web2-backup/
#重载配置
[root@NFS-bak ~]$ rsync --daemon
#放进文件中，随主机开启自启动
[root@NFS-bak ~]$ echo "rsync --daemon" > /etc/profile.d/rsync.sh
[root@NFS-bak ~]$ chmod +x /etc/profile.d/rsync.sh
- 测试是否主备同步数据
#在NFS主服务器上共享目录创建一个test.txt文件，查看备份服务器上是否同步
[root@NFS ~]$ cd /data/www/
[root@NFS www]$ touch test.txt
[root@NFS www]$ ll
total 0
-rw-r--r-- 1 root root 0 Mar 9 22:23 test.txt
[root@NFS-bak ~]$ ll /data/backup/
total 0
-rw-r--r-- 1 www www 0 Mar 9 22:23 test.txt
4 在10.0.0.48和10.0.0.58主机上搭建MySQL主从节点
- 主节点：10.0.0.48
- 从节点：10.0.0.58
- 搭建主节点
#安装mysql
[root@mysql-master ~]$ yum -y install mysql-server
#创建二进制日志存放路径，并在配置文件中指定路径以及日子文件的前缀
[root@mysql-master ~]$ mkdir /data/binlog
[root@mysql-master ~]$ chown mysql. /data/binlog/
#设置配置文件，并启动服务
[root@mysql-master ~]$ cat /etc/my.cnf
[mysqld]
server-id=48
log_bin=/data/binlog/mysql-bin
[root@mysql-master ~]$ systemctl enable --now mysqld
#创建复制用户以及授权
[root@mysql-master ~]$ mysql -uroot -plgq123456 -e "create user 'repluser'@'10.0.0.%' identified by 'lgq123456';"
[root@mysql-master ~]$ mysql -uroot -plgq123456 -e "grant replication slave on *.* to 'repluser'@'10.0.0.%';"
#创建kodbox对应数据库以及账号
[root@mysql-master ~]$ mysql -uroot -plgq123456 -e "create database kodbox;"
[root@mysql-master ~]$ mysql -uroot -plgq123456 -e "create user kodbox@'10.0.0.%' identified by 'lgq123456';"
[root@mysql-master ~]$ mysql -uroot -plgq123456 -e "grant all on kodbox.* to kodbox@'10.0.0.%';"
#创建web2业务对应的数据库和用户
[root@mysql-master ~]$ mysql -uroot -plgq123456 -e "create database jpress;"
[root@mysql-master ~]$ mysql -uroot -plgq123456 -e "create user jpress@'10.0.0.%' identified by '123456';"
[root@mysql-master ~]$ mysql -uroot -plgq123456 -e "grant all on jpress.* to jpress@'10.0.0.%';"
#进行完全备份
[root@mysql-master ~]$ mysqldump -uroot -plgq123456 -A -F --single-transaction --master-data=1 > full_backup.sql
#拷贝备份数据到从节点
[root@mysql-master ~]$ scp full_backup.sql 10.0.0.58:
- 搭建从节点
#安装
[root@mysql-slave ~]$ yum -y install mysql-server
#修改配置文件，并启动
[root@mysql-slave ~]$ vi /etc/my.cnf
#添加下面信息
[mysqld]
server-id=58
read-only
[root@mysql-slave ~]$ systemctl enable --now mysqld
#修改备份文件，在change master to中添加主节点信息
[root@mysql-slave ~]$ vi full_backup.sql
......
CHANGE MASTER TO
MASTER_HOST='10.0.0.48', #添上主节点ip地址
MASTER_USER='repluser', #添上在主节点创建的账号
MASTER_PASSWORD='lgq123456', #添上账号密码
MASTER_PORT=3306, #添上端口号
MASTER_LOG_FILE='mysql-bin.000003',
MASTER_LOG_POS=157;
......
#还原备份
###暂时关闭二进制日志
[root@mysql-slave ~]$ mysql
mysql> set sql_log_bin=0;
###还原
mysql> source /root/full_backup.sql;
##开启主从节点的链接线程
mysql> start slave;
##查看状态
mysql> show slave statusG
*************************** 1. row ***************************
Slave_IO_State: Waiting for source to send event
Master_Host: 10.0.0.48
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 157
Relay_Log_File: mysql-slave-relay-bin.000002
Relay_Log_Pos: 326
Relay_Master_Log_File: mysql-bin.000003
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 157
Relay_Log_Space: 542
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 48
Master_UUID: bdcb41ce-be61-11ed-808a-000c2924e25d
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Replica has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
Master_public_key_path:
Get_master_public_key: 0
Network_Namespace:
1 row in set, 1 warning (0.01 sec)
- 测试主从是否同步
#在主节点上创建一个测试数据库
mysql> create database t1;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| kodbox |
| mysql |
| performance_schema |
| sys |
| t1 |
+--------------------+
6 rows in set (0.00 sec)
#在从节点查看是否存在
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| kodbox |
| mysql |
| performance_schema |
| sys |
| t1 |
+--------------------+
6 rows in set (0.01 sec)
##说明主从复制已经可以同步了
5 在10.0.0.88主机上部署redis
#安装redis
[root@redis ~]$ yum -y install redis
#修改配置文件
[root@redis ~]$ vi /etc/redis.conf
bind 0.0.0.0 #将此行的127.0.0.1改为0.0.0.0，实现远程访问
[root@redis ~]$ systemctl enable --now redis
6 搭建 www.yanlinux.org web1业务（可道云业务）
6.1 在10.0.0.28上搭建nginx和php-fpm
# 1.利用脚本一键编译安装nginx
[root@web1 ~]$ cat install_nginx.sh
#!/bin/bash
OS_TYPE=`awk -F'[ "]' '/^NAME/{print $2}' /etc/os-release`
OS_VERSION=`awk -F'[".]' '/^VERSION_ID/{print $2}' /etc/os-release`
CPU=`lscpu |awk '/^CPU(s)/{print $2}'`
SRC_DIR=/usr/local/src
read -p "$(echo -e ' 33[1;32m请输入下载的版本号： 33[0m')" NUM
NGINX_FILE=nginx-${NUM}
NGINX_INSTALL_DIR=/apps/nginx
color () {
RES_COL=60
MOVE_TO_COL="echo -en \033[${RES_COL}G"
SETCOLOR_SUCCESS="echo -en \033[1;32m"
SETCOLOR_FAILURE="echo -en \033[1;31m"
SETCOLOR_WARNING="echo -en \033[1;33m"
SETCOLOR_NORMAL="echo -en E[0m"
echo -n "$1" && $MOVE_TO_COL
echo -n "["
if [ $2 = "success" -o $2 = "0" ] ;then
${SETCOLOR_SUCCESS}
echo -n $" OK "
elif [ $2 = "failure" -o $2 = "1" ] ;then
${SETCOLOR_FAILURE}
echo -n $"FAILED"
else
${SETCOLOR_WARNING}
echo -n $"WARNING"
fi
${SETCOLOR_NORMAL}
echo -n "]"
echo
}
#下载源码
wget_package(){
[ -e ${NGINX_INSTALL_DIR} ] && { color "nginx 已安装,请卸载后再安装" 1; exit; }
cd ${SRC_DIR}
if [ -e ${NGINX_FILE}.tar.gz ];then
color "源码包已经准备好" 0
else
color "开始下载源码包" 0
wget http://nginx.org/download/${NGINX_FILE}.tar.gz
[ $? -ne 0 ] && { color "下载 ${NGINX_FILE}.tar.gz文件失败" 1; exit; }
fi
}
#编译安装
install_nginx(){
color "开始安装nginx" 0
if id nginx &> /dev/null;then
color "nginx用户已经存在" 1
else
useradd -s /sbin/nologin -r nginx
color "nginx用户账号创建完成" 0
fi
color "开始安装nginx依赖包" 0
if [ $OS_TYPE == "Centos" -a ${OS_VERSION} == '7' ];then
yum -y install make gcc pcre-devel openssl-devel zlib-devel perl-ExtUtils-Embed
elif [ $OS_TYPE == "Centos" -a ${OS_VERSION} == '8' ];then
yum -y install make gcc-c++ libtool pcre pcre-devel zlib zlib-devel openssl openssl-devel perl-ExtUtils-Embed
elif [ $OS_TYPE == "Rocky" ];then
yum -y install make gcc libtool pcre pcre-devel zlib zlib-devel openssl openssl-devel perl-ExtUtils-Embed
elif [ $OS_TYPE == "Ubuntu" ];then
apt update
apt -y install make gcc libpcre3 libpcre3-dev openssl libssl-dev zlib1g-dev
else
color '不支持此系统!' 1
exit
fi
#开始编译安装
color "开始编译安装nginx" 0
cd $SRC_DIR
tar xf ${NGINX_FILE}.tar.gz
cd ${SRC_DIR}/${NGINX_FILE}
./configure --prefix=${NGINX_INSTALL_DIR} --user=nginx --group=nginx --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_stub_status_module --with-http_gzip_static_module --with-pcre --with-stream --with-stream_ssl_module --with-stream_realip_module
make -j ${CPU} && make install
[ $? -eq 0 ] && color "nginx 编译安装成功" 0 || { color "nginx 编译安装失败,退出!" 1 ;exit; }
ln -s ${NGINX_INSTALL_DIR}/sbin/nginx /usr/sbin/ &> /dev/null
#创建service文件
cat > /lib/systemd/system/nginx.service /dev/null
systemctl is-active nginx &> /dev/null || { color "nginx 启动失败,退出!" 1 ; exit; }
color "nginx 安装完成" 0
}
wget_package
install_nginx
##执行脚本安装nginx
[root@web1 ~]$ sh install_nginx.sh
[root@web1 ~]$ ss -ntl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
# 2.安装配置php-fpm
[root@web1 ~]$ yum -y install php-fpm
##安装php-mysql 以及php-redis所依赖的包
[root@web1 ~]$ php-mysqlnd php-json php-cli php-devel
##下载php-redis
[root@web1 ~]$ wget https://pecl.php.net/get/redis-5.3.7.tgz -P /usr/local/src/
[root@web1 ~]$ cd /usr/local/src/
[root@web1 src]$ tar xf redis-5.3.7.tgz
[root@web1 src]$ cd redis-5.3.7/
[root@web1 redis-5.3.7]$ phpize
Configuring for:
PHP Api Version: 20170718
Zend Module Api No: 20170718
Zend Extension Api No: 320170718
[root@web1 redis-5.3.7]$ ./configure
[root@web1 redis-5.3.7]$ make && make install
##创建php支持redis扩展的配置文件
[root@web1 redis-5.3.7]$ vi /etc/php.d/31-redis.ini
extension=redis #加入此行
[root@web1 redis-5.3.7]$ cd
#修改php上传限制配置
[root@web1 ~]$ vi /etc/php.ini
post_max_size = 200M #修改为200M
upload_max_filesize = 200M #改为200M,实现大文件上传
#修改配置文件
[root@web1 ~]$ vi /etc/php-fpm.d/www.conf
user = nginx #修改为nginx
group = nginx #修改为nginx
;listen = /run/php-fpm/www.sock #注释此行
listen = 127.0.0.1:9000 #添加此行，监控本机的9000端口
pm.status_path = /fpm_status #取消此行的注释,并改为fpm_status，防止与nginx服务的status冲突
ping.path = /ping #取消此行的注释
ping.response = pong #取消此行的注释
##启动服务
[root@web1 ~]$ systemctl enable --now php-fpm
# 3.配置nginx虚拟主机配置文件
##为了方便管理不同的业务，nginx支持子配置文件
##创建子配置文件目录
[root@web1 ~]$ mkdir /apps/nginx/conf/conf.d
[root@web1 ~]$ vi /apps/nginx/conf/nginx.conf
include /apps/nginx/conf/conf.d/*.conf; #在http语句块最后一行添加上这一行
##创建业务配置文件
[root@web1 ~]$ cat /apps/nginx/conf/conf.d/www.yanlinux.org.conf
server {
listen 80;
server_name www.yanlinux.org;
client_max_body_size 100M;
server_tokens off;
location / {
root /data/kodbox/;
index index.php index.html index.htm;
}
location ~ .php$ {
root /data/kodbox/;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
fastcgi_hide_header X-Powered-By;
}
location ~ ^/(ping|fpm_status)$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
# 4.重启服务
[root@web1 ~]$ systemctl restart nginx.service php-fpm.service
查看状态php状态页，测试服务搭建成功
6.2 部署kodbox
##安装可道云(kodbox)所需的依赖包
[root@web1 ~]$ yum -y install php-mbstring php-xml php-gd
#下载源码包
[root@web1 ~]$ wget https://static.kodcloud.com/update/download/kodbox.1.35.zip
[root@web1 ~]$ unzip kodbox.1.35.zip -d /data/kodbox
[root@web1 ~]$ chown -R nginx.nginx /data/kodbox/
6.3 挂载NFS服务器，实现网站数据远程备份
#安装nfs-utils搭建挂载NFS
[root@web1 ~]$ yum -y install nfs-utils
[root@web1 ~]$ showmount -e 10.0.0.68
Export list for 10.0.0.68:
/data/web2 *
/data/www *
#实现永久挂载,添加以下挂载信息，利用可道云上传的数据都会存放在/data/kodbox/data/files目录下，所以讲这个目录挂载nfs
[root@web1 ~]$ vi /etc/fstab
10.0.0.68:/data/www /data/kodbox/data/files nfs _netdev 0 0
[root@web1 ~]$ mount -a
[root@web1 ~]$ df -h|grep data
10.0.0.68:/data/www 70G 2.3G 68G 4% /data/kodbox/data/files
往可道云上上传文件MyHotkeyScript.ahk，测试NFS主备服务是否都可以得到数据
#查看web1服务器上是否上传了数据
[root@web1 ~]$ ll /data/kodbox/data/files/202303/09_079920df/
total 4
-rwxrwxrwx 1 666 666 1491 Mar 9 22:51 MyHotkeyScript.ahk
#在NFS主服务器上查看
[root@NFS ~]$ ll /data/www/202303/09_079920df/
total 4
-rwxrwxrwx 1 www www 1491 Mar 9 22:51 MyHotkeyScript.ahk
#在NFS备份服务器上查看
[root@NFS-bak ~]$ ll /data/backup/202303/09_079920df/
total 4
-rwxrwxrwx 1 www www 1491 Mar 9 22:51 MyHotkeyScript.ahk
7 部署www.yanlinux.edu web2业务（JPress）
7.1 在10.0.0.38主机上搭建tomcat
#利用脚本一键安装jdk以及tomcat
[root@web2 ~]$ cat install_tomcat_jdk.sh
#!/bin/bash
DIR=`pwd`
read -p "$(echo -e ' 33[1;32m请输入JDK版本号： 33[0m')" JDK_VERSION
read -p "$(echo -e ' 33[1;32m请输入Tomcat版本号： 33[0m')" TOMCAT_VERSION
JDK_FILE="jdk-${JDK_VERSION}-linux-x64.tar.gz"
TOMCAT_FILE="apache-tomcat-${TOMCAT_VERSION}.tar.gz"
INSTALL_DIR="/usr/local"
color () {
RES_COL=60
MOVE_TO_COL="echo -en \033[${RES_COL}G"
SETCOLOR_SUCCESS="echo -en \033[1;32m"
SETCOLOR_FAILURE="echo -en \033[1;31m"
SETCOLOR_WARNING="echo -en \033[1;33m"
SETCOLOR_NORMAL="echo -en E[0m"
echo -n "$2" && $MOVE_TO_COL
echo -n "["
if [ $1 = "success" -o $1 = "0" ] ;then
${SETCOLOR_SUCCESS}
echo -n $" OK "
elif [ $1 = "failure" -o $1 = "1" ] ;then
${SETCOLOR_FAILURE}
echo -n $"FAILED"
else
${SETCOLOR_WARNING}
echo -n $"WARNING"
fi
${SETCOLOR_NORMAL}
echo -n "]"
echo
}
install_jdk(){
if ! [ -f "${DIR}/${JDK_FILE}" ];then
color 1 "${JDK_FILE}不存在，请去官网下载"
exit;
elif [ -f ${INSTALL_DIR}/jdk ];then
color 1 "JDK已经安装"
exit;
else
[ -d "${INSTALL_DIR}" ] || mkdir -pv ${INSTALL_DIR}
fi
tar xf ${DIR}/${JDK_FILE} -C ${INSTALL_DIR}
cd ${INSTALL_DIR} && ln -s jdk* jdk
cat > /etc/profile.d/jdk.sh /etc/profile.d/tomcat.sh
id tomcat &> /dev/null || useradd -r -s /sbin/nologin tomcat
cat > ${INSTALL_DIR}/tomcat/conf/tomcat.conf /lib/systemd/system/tomcat.service /dev/null
systemctl is-active tomcat.service &> /dev/null && color 0 "TOMCAT 安装完成" || { color 1 "TOMCAT 安装失败" ; exit; }
}
install_jdk
install_tomcat
[root@web2 ~]$ sh install_tomcat.sh
请输入JDK版本号：8u321
请输入Tomcat版本号：9.0.59
java version "1.8.0_321"
Java(TM) SE Runtime Environment (build 1.8.0_321-b07)
Java HotSpot(TM) 64-Bit Server VM (build 25.321-b07, mixed mode)
JDK安装完成 [ OK ]
TOMCAT 安装完成 [ OK ]
#创建虚拟主机
[root@web2 ~]$ vi /usr/local/tomcat/conf/server.xml
pattern="%h %l %u %t "%r" %s %b" />
#在这一行之后添加下面几行信息
#以上信息就是虚拟主机的配置信息
#准备虚拟主机的数据目录，tomcat默认会在ROOT目录中找，所以需要将应用数据布置到这里面就可以避免在URL中添加应用目录来访问了。
[root@web2 ~]$ mkdir /data/webapps/ROOT -p
[root@web2 ~]$ chown -R tomcat.tomcat /data/webapps
[root@web2 ~]$ systemctl restart tomcat.service
7.2 部署nginx
#利用6.1中的安装nginx脚本来安装
[root@web2 ~]$ sh install_nginx.sh
#创建子配置目录
[root@web2 ~]$ mkdir /apps/nginx/conf/conf.d
[root@web2 ~]$ vi /apps/nginx/conf/nginx.conf
#在主配置文件中引入子配置目录
[root@web2 ~]$ tail -n2 /apps/nginx/conf/nginx.conf
include /apps/nginx/conf/conf.d/*.conf;
}
#创建业务2配置文件
[root@web2 ~]$ cat /apps/nginx/conf/conf.d/www.yanlinux.edu.conf
server {
listen 80;
server_name www.yanlinux.edu;
location / {
proxy_pass http://127.0.0.1:8080;
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}
[root@web2 ~]$ nginx -t
nginx: the configuration file /apps/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /apps/nginx/conf/nginx.conf test is successful
[root@web2 ~]$ nginx -s reload
7.3 部署JPress应用
#上官网http://www.jpress.io/下载war包，上传到服务器
[root@web2 ~]$ cp jpress-v4.0.7.war /usr/local/tomcat/webapps/jpress.war
[root@web2 ~]$ cd /usr/local/tomcat/webapps/
#war包传到tomcat目录下就会自动解包，
[root@web2 webapps]$ ls
docs examples host-manager jpress jpress.war manager ROOT
#然后将jpress/目录下的内容拷贝到6.7.1创建tomcat虚拟主机www.yanlinux.edu的数据目录中
[root@web2 ~]$ cp -a /usr/local/tomcat/webapps/jpress/* /data/webapps/ROOT/
#数据库账号已经在6.4中创建直接连接就可以
浏览器访问
7.4 挂载NFS服务器
[root@web2 ~]$ yum -y install nfs-utils
[root@web2 ~]$ showmount -e 10.0.0.68
Export list for 10.0.0.68:
/data/web2 *
/data/www *
#永久挂载，添加挂载信息
[root@web2 ~]$ vi /etc/fstab
10.0.0.68:/data/web2 /data/webapps/ROOT/attachment/ nfs _netdev 0 0
[root@web2 ~]$ mount -a
[root@web2 ~]$ df -h |grep data
10.0.0.68:/data/web2 70G 2.2G 68G 4% /data/webapps/ROOT/attachment
#发布文章，添加一张照片测试
[root@web2 ~]$ ll /data/webapps/ROOT/attachment/20230310/
total 560
-rw-r--r-- 1 666 666 569655 Mar 10 11:10 2974a6d37fb04ebfab8c7816d0a8dadd.png
#NFS服务器上查看
[root@NFS ~]$ ll /data/web2/20230310/
total 560
-rw-r--r-- 1 www www 569655 Mar 10 11:10 2974a6d37fb04ebfab8c7816d0a8dadd.png
#NFS备份服务器查看
[root@NFS-bak ~]$ ll /data/web2-backup/20230310/
total 560
-rw-r--r-- 1 www www 569655 Mar 10 11:10 2974a6d37fb04ebfab8c7816d0a8dadd.png
7.5 利用redis实现session共享
#准备从官网下载两个jar包，上传到lib目录下，
##下载地址https://github.com/redisson/redisson/tree/master/redisson-tomcat
[root@web2 ~]$ cd /usr/local/tomcat/lib/
[root@web2 lib]$ ls redisson-*
redisson-all-3.20.0.jar redisson-tomcat-9-3.20.0.jar
#在context.xml最后一行之前加上以下内容
[root@web2 lib]$ vi ../conf/context.xml
#添加以下信息
8 KeepAlived+HAProxy服务搭建，实现整体架构
分别在10.0.0.8和10.0.0.18两台rocky主机上编译安装keepalived和HAProxy两个服务，实现高可用。
- 编译安装keepalived
#ka1节点编译安装
# 1.安装依赖
##centos和rocky
[root@ka1 ~]$ yum -y install gcc curl openssl-devel libnl3-devel net-snmp-devel
##ubuntu所需要的依赖下面两种：
##ubuntu18.04
[root@ubuntu1804 ~]$ apt -y install gcc curl openssl libssl-dev libpopt-dev daemon build-essential
##ubuntu20.04
[root@ubuntu2004 ~]$ apt -y install make gcc ipvsadm build-essential pkg-config automake autoconf libipset-dev libnl-3-dev libnl-genl-3-dev libssl-dev libxtables-dev libip4tc-dev libip6tc-dev libipset-dev libmagic-dev libsnmp-dev libglib2.0-dev libpcre2-dev libnftnl-dev libmnl-dev libsystemd-dev
# 2.下载源码包
[root@ka1 ~]$ wget https://keepalived.org/software/keepalived-2.2.7.tar.gz
##解压
[root@ka1 ~]$ tar xf keepalived-2.2.7.tar.gz
# 3.编译安装
[root@ka1 ~]$ cd keepalived-2.2.7/
#选项--disable-fwmark 可用于禁用iptables规则,可访止VIP无法访问,无此选项默认会启用iptables规则
[root@ka1 keepalived-2.2.7]$ ./configure --prefix=/usr/local/keepalived --disable-fwmark
[root@ka1 keepalived-2.2.7]$ make -j 2 && make install
##验证版本信息
[root@ka1 keepalived-2.2.7]$ /usr/local/keepalived/sbin/keepalived -v
Keepalived v2.2.7 (01/16,2022)
Copyright(C) 2001-2022 Alexandre Cassen,
Built with kernel headers for Linux 4.18.0
Running on Linux 4.18.0-348.el8.0.2.x86_64 #1 SMP Sun Nov 14 00:51:12 UTC 2021
Distro: Rocky Linux 8.5 (Green Obsidian)
configure options: --prefix=/usr/local/keepalived --disable-fwmark
Config options: LVS VRRP VRRP_AUTH VRRP_VMAC OLD_CHKSUM_COMPAT INIT=systemd
System options: VSYSLOG MEMFD_CREATE IPV4_DEVCONF LIBNL3 RTA_ENCAP RTA_EXPIRES RTA_NEWDST RTA_PREF FRA_SUPPRESS_PREFIXLEN FRA_SUPPRESS_IFGROUP FRA_TUN_ID RTAX_CC_ALGO RTAX_QUICKACK RTEXT_FILTER_SKIP_STATS FRA_L3MDEV FRA_UID_RANGE RTAX_FASTOPEN_NO_COOKIE RTA_VIA FRA_PROTOCOL FRA_IP_PROTO FRA_SPORT_RANGE FRA_DPORT_RANGE RTA_TTL_PROPAGATE IFA_FLAGS LWTUNNEL_ENCAP_MPLS LWTUNNEL_ENCAP_ILA NET_LINUX_IF_H_COLLISION LIBIPTC_LINUX_NET_IF_H_COLLISION LIBIPVS_NETLINK IPVS_DEST_ATTR_ADDR_FAMILY IPVS_SYNCD_ATTRIBUTES IPVS_64BIT_STATS VRRP_IPVLAN IFLA_LINK_NETNSID GLOB_BRACE GLOB_ALTDIRFUNC INET6_ADDR_GEN_MODE VRF
# 4.创建service文件
##默认源码包中会有unit文件，只需要将提供的service文件拷贝到/lib/systemd/system/目录下即可
[root@ka1 keepalived-2.2.7]$ cp ./keepalived/keepalived.service /lib/systemd/system/
[root@ka1 keepalived-2.2.7]$ cat /lib/systemd/system/keepalived.service
[Unit]
Description=LVS and VRRP High Availability Monitor
After=network-online.target syslog.target
Wants=network-online.target
Documentation=man:keepalived(8)
Documentation=man:keepalived.conf(5)
Documentation=man:genhash(1)
Documentation=https://keepalived.org
[Service]
Type=forking
PIDFile=/run/keepalived.pid
KillMode=process
EnvironmentFile=-/usr/local/keepalived/etc/sysconfig/keepalived
ExecStart=/usr/local/keepalived/sbin/keepalived $KEEPALIVED_OPTIONS
ExecReload=/bin/kill -HUP $MAINPID
[Install]
WantedBy=multi-user.target
# 5.创建配置文件
##编译目录下会自动生成示例配置文件，需要在/etc目录下建一个keepalived目录存放配置文件。然后将其中配置VRRP以及real-server的示例信息删除，只留下global_defs配置语块即可。
[root@ka1 keepalived-2.2.7]$ mkdir /etc/keepalived
[root@ka1 keepalived-2.2.7]$ cp /usr/local/keepalived/etc/keepalived/keepalived.conf.sample /etc/keepalived/keepalived.conf
##按自己需求修改示例配置文件
[root@ka1 keepalived-2.2.7]$ vi /etc/keepalived/keepalived.conf
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 ka1 #每个keepalived主机唯一标识，建议使用当前主机名，如果多节点重名可能会影响切换脚本执行。在另一台keepalived主机ka2上，应该改为ka2
vrrp_skip_check_adv_addr
vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
vrrp_mcast_group4 230.1.1.1
}
include /etc/keepalived/conf.d/*.conf #当生产环境复杂时， /etc/keepalived/keepalived.conf 文件中内容过多，不易管理，可以将不同集群的配置，比如：不同集群的VIP配置放在独立的子配置文件中。利用include指令可以实现包含子配置文件
##创建子配置文件目录
[root@ka1 keepalived-2.2.7]$ mkdir /etc/keepalived/conf.d/
# 6.启动服务
[root@ka1 keepalived-2.2.7]$ systemctl daemon-reload
[root@ka1 keepalived-2.2.7]$ systemctl enable --now keepalived.service
[root@ka1 keepalived-2.2.7]$ systemctl is-active keepalived
active
# 7.在ka2节点上按照ka1节点操作进行编译安装
[root@ka2 ~]$ systemctl is-active keepalived.service
active
[root@ka2 ~]$ /usr/local/keepalived/sbin/keepalived -v
Keepalived v2.2.7 (01/16,2022)
Copyright(C) 2001-2022 Alexandre Cassen,
Built with kernel headers for Linux 4.18.0
Running on Linux 4.18.0-348.el8.0.2.x86_64 #1 SMP Sun Nov 14 00:51:12 UTC 2021
Distro: Rocky Linux 8.5 (Green Obsidian)
configure options: --prefix=/usr/local/keepalived --disable-fwmark
Config options: LVS VRRP VRRP_AUTH VRRP_VMAC OLD_CHKSUM_COMPAT INIT=systemd
System options: VSYSLOG MEMFD_CREATE IPV4_DEVCONF LIBNL3 RTA_ENCAP RTA_EXPIRES RTA_NEWDST RTA_PREF FRA_SUPPRESS_PREFIXLEN FRA_SUPPRESS_IFGROUP FRA_TUN_ID RTAX_CC_ALGO RTAX_QUICKACK RTEXT_FILTER_SKIP_STATS FRA_L3MDEV FRA_UID_RANGE RTAX_FASTOPEN_NO_COOKIE RTA_VIA FRA_PROTOCOL FRA_IP_PROTO FRA_SPORT_RANGE FRA_DPORT_RANGE RTA_TTL_PROPAGATE IFA_FLAGS LWTUNNEL_ENCAP_MPLS LWTUNNEL_ENCAP_ILA NET_LINUX_IF_H_COLLISION LIBIPTC_LINUX_NET_IF_H_COLLISION LIBIPVS_NETLINK IPVS_DEST_ATTR_ADDR_FAMILY IPVS_SYNCD_ATTRIBUTES IPVS_64BIT_STATS VRRP_IPVLAN IFLA_LINK_NETNSID GLOB_BRACE GLOB_ALTDIRFUNC INET6_ADDR_GEN_MODE VRF
-
编译安装HAProxy服务
编译安装HAProxy 2.6 LTS版本，更多源码包下载地址：http://www.haproxy.org/download/
依赖lua环境，由于CentOS7 之前版本自带的lua版本比较低并不符合HAProxy要求的lua最低版本(5.3)的要求，因此需要编译安装较新版本的lua环境，然后才能编译安装HAProxy。
#ka1节点安装HAProxy
# 1.安装依赖环境
##centos或rocky
[root@ka1 ~]$ yum -y install gcc make gcc-c++ glibc glibc-devel pcre pcre-devel openssl openssl-devel systemd-devel libtermcap-devel ncurses-devel libevent-devel readline-devel
##ubuntu
apt -y install gcc make openssl libssl-dev libpcre3 libpcre3-dev zlib1g-dev libreadline-dev libsystemd-dev
# 2.编译安装lua环境
##下载源码：参考链接http://www.lua.org/start.html
[root@ka1 ~]$ curl -R -O http://www.lua.org/ftp/lua-5.4.4.tar.gz
[root@ka1 ~]$ tar xvf lua-5.3.5.tar.gz -C /usr/local/src
[root@ka1 ~]$ cd /usr/local/src/lua-5.3.5
[root@ka1 lua-5.3.5]$ make all test
[root@ka1 lua-5.3.5]$ pwd
/usr/local/src/lua-5.3.5
[root@ka1 lua-5.3.5]$ ./src/lua -v
Lua 5.3.5 Copyright (C) 1994-2018 Lua.org, PUC-Rio
# 3.编译安装haproxy
##下载源码：官网链接：www.haproxy.org
[root@ka1 ~]$ https://www.haproxy.org/download/2.6/src/haproxy-2.6.9.tar.gz
[root@ka1 ~]$ tar xvf haproxy-2.6.9.tar.gz -C /usr/local/src
[root@ka1 ~]$ cd /usr/local/src/haproxy-2.6.9
##编译安装
[root@ka1 haproxy-2.6.9]$ make ARCH=x86_64 TARGET=linux-glibc USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 USE_SYSTEMD=1 USE_CPU_AFFINITY=1 USE_LUA=1 LUA_INC=/usr/local/src/lua-5.3.5/src/ LUA_LIB=/usr/local/src/lua-5.3.5/src/ PREFIX=/apps/haproxy
[root@ka1 haproxy-2.6.9]$ make install PREFIX=/apps/haproxy
##解决环境变量
[root@ka1 haproxy-2.6.9]$ ln -s /apps/haproxy/sbin/haproxy /usr/sbin/
##验证haproxy版本
[root@ka1 haproxy-2.6.9]$ which haproxy
/usr/sbin/haproxy
[root@ka1 haproxy-2.6.9]$ haproxy -v
HAProxy version 2.6.9-3a3700a 2023/02/14 - https://haproxy.org/
Status: long-term supported branch - will stop receiving fixes around Q2 2027.
Known bugs: http://www.haproxy.org/bugs/bugs-2.6.9.html
Running on: Linux 4.18.0-348.el8.0.2.x86_64 #1 SMP Sun Nov 14 00:51:12 UTC 2021 x86_64
# 4.创建HAProxy配置文件
[root@ka1 haproxy-2.6.9]$ cd
##准备配置文件目录
[root@ka1 ~]$ mkdir /etc/haproxy
[root@ka1 ~]$ cat > /etc/haproxy/haproxy.cfg /lib/systemd/system/haproxy.service - 创建两个不同业务的配置文件
#ka1节点配置
##keepalived子配置文件
[root@ka1 ~]$ cd /etc/keepalived/conf.d/
##创建haproxy检测脚本
[root@ka1 ~]$ cat /etc/keepalived/conf.d/check_haproxy.sh
#!/bin/bash
/usr/bin/killall -0 haproxy || systemctl restart haproxy
##添加执行权限
[root@ka1 ~]$ chmod a+x /etc/keepalived/conf.d/check_haproxy.sh
##创建邮件通知脚本
[root@ka1 ~]$ cat /etc/keepalived/notify.sh
#!/bin/bash
contact='lgq6579@163.com'
email_send='1499214187@qq.com'
email_passwd='zzvjrqnkrkafbaec'
email_smtp_server='smtp.qq.com'
. /etc/os-release
msg_error() {
echo -e " 33[1;31m$1 33[0m"
}
msg_info() {
echo -e " 33[1;32m$1 33[0m"
}
msg_warn() {
echo -e " 33[1;33m$1 33[0m"
}
color () {
RES_COL=60
MOVE_TO_COL="echo -en \033[${RES_COL}G"
SETCOLOR_SUCCESS="echo -en \033[1;32m"
SETCOLOR_FAILURE="echo -en \033[1;31m"
SETCOLOR_WARNING="echo -en \033[1;33m"
SETCOLOR_NORMAL="echo -en E[0m"
echo -n "$1" && $MOVE_TO_COL
echo -n "["
if [ $2 = "success" -o $2 = "0" ] ;then
${SETCOLOR_SUCCESS}
echo -n $" OK "
elif [ $2 = "failure" -o $2 = "1" ] ;then
${SETCOLOR_FAILURE}
echo -n $"FAILED"
else
${SETCOLOR_WARNING}
echo -n $"WARNING"
fi
${SETCOLOR_NORMAL}
echo -n "]"
echo
}
install_sendemail () {
if [[ $ID =~ rhel|centos|rocky ]];then
rpm -q sendemail &> /dev/null || yum -y install sendemail
elif [ $ID = 'ubuntu' ];then
dpkg -l | grep -q sendemail || { apt update; apt -y install libio-socket-ssl-perl libnet-ssleay-perl sendemail; }
else
color "不支持此操作系统,退出!" 1
exit
fi
}
send_mail() {
local email_receive="$1"
local email_subject="$2"
local email_message="$3"
sendemail -f $email_send -t $email_receive -u $email_subject -m $email_message -s $email_smtp_server -o message-charset=utf-8 -o tls=yes -xu $email_send -xp $email_passwd
[ $? -eq 0 ] && color "邮件发送成功" 0 || color "邮件发送失败" 1
}
notify() {
if [[ $1 =~ ^(master|backup|fault)$ ]];then
mailsubject="$(hostname) to be $1, vip floating"
mailbody="$(date +'%F %T'): vrrp transition, $(hostname) changed to be $1"
send_mail "$contact" "$mailsubject" "$mailbody"
else
echo "Usage: $(basename $0) {master|backup|fault}"
exit 1
fi
}
install_sendemail
notify $1
##加执行权限
[root@ka1 ~]$ chmod a+x /etc/keepalived/notify.sh
##创建子配置文件
[root@ka1 conf.d]$ cat web.conf
vrrp_script check_haproxy {
script "/etc/keepalived/conf.d/check_haproxy.sh" ##shell命令或脚本路径
interval 1 #间隔时间，单位为秒，默认1秒
weight -30 #默认为0,如果设置此值为负数，当上面脚本返回值为非0时，会将此值与本节点权重相加可以降低本节点权重，即表示fall. 如果是正数，当脚本返回值为0，会将此值与本节点权重相加可以提高本节点权重，即表示 rise.通常使用负值
fall 3 #执行脚本连续几次都失败,则转换为失败，建议设为2以上
rise 2 #执行脚本连续几次都成功，把服务器从失败标记为成功
timeout 2 #超时时间
}
vrrp_instance VI_1 {
state MASTER #当前节点在此虚拟路由器上的初始状态，状态为MASTER，在ka2主机上要设置为BACKUP
interface eth0 #绑定为当前虚拟路由器使用的物理接口
virtual_router_id 51 #每个虚拟路由器唯一标识，范围：0-255，每个虚拟路由器此值必须唯一，否则服务无法启动，同属一个虚拟路由器的多个keepalived节点必须相同,务必要确认在同一网络中此值必须唯一
priority 100 #当前物理节点在此虚拟路由器的优先级，范围：1-254，每个keepalived主机节点此值不同。ka2主机要设置为80
advert_int 1 #vrrp通告的时间间隔，默认1s
authentication { #认证机制
auth_type PASS
auth_pass 1111
}
virtual_ipaddress { #虚拟IP,生产环境可能指定上百个IP地址
10.0.0.200 dev eth0 label eth0:1 #指定VIP的网卡label
}
unicast_src_ip 10.0.0.8 #指定发送单播的源IP
unicast_peer{
10.0.0.18 #指定接收单播的对方目标主机IP
}
notify_master "/etc/keepalived/notify.sh master" #当前节点成为主节点时触发的脚本
notify_backup "/etc/keepalived/notify.sh backup" #当前节点转为备节点时触发的脚本
notify_fault "/etc/keepalived/notify.sh fault" #当前节点转为“失败”状态时触发的脚本
track_script {
check_haproxy #调用脚本
}
}
##创建haproxy业务子配置文件
## 注意: 子配置文件的文件后缀必须为.cfg
[root@ka1 ~]$ cd /etc/haproxy/conf.d/
[root@ka1 conf.d]$ cat web.cfg
frontend http_80
bind 10.0.0.200:80
acl org_domain hdr_dom(host) -i www.yanlinux.org
acl edu_domain hdr_dom(host) -i www.yanlinux.edu
use_backend www.yanlinux.org if org_domain
use_backend www.yanlinux.edu if edu_domain
backend www.yanlinux.org
server 10.0.0.28 10.0.0.28:80 check inter 3000 fall 3 rise 5
backend www.yanlinux.edu
server 10.0.0.38 10.0.0.38:80 check inter 3000 fall 3 rise 5
##重启服务
[root@ka1 ~]$ systemctl restart keepalived.service haproxy.service
#ka2节点配置
##keepalived业务子配置文件
##从ka1节点上拷贝邮件通知脚本和haproxy检查脚本到本机上
[root@ka2 ~]$ scp 10.0.0.8:/etc/keepalived/notify.sh /etc/keepalived/
[root@ka2 ~]$ scp 10.0.0.8:/etc/keepalived/conf.d/check_haproxy.sh /etc/keepalived/conf.d/
##创建子配置文件，大致上与ka1节点上的配置相同
[root@ka2 ~]$ cat /etc/keepalived/conf.d/web.conf
vrrp_script check_haproxy {
script "/etc/keepalived/conf.d/check_haproxy.sh"
interval 1
weight -30
fall 3
rise 2
timeout 2
}
vrrp_instance VI_1 {
state BACKUP #这里改为BACKUP
interface eth0
virtual_router_id 51
priority 80 #改为80，因为是从节点
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.200 dev eth0 label eth0:1
}
unicast_src_ip 10.0.0.18
unicast_peer {
10.0.0.8
}
notify_master "/etc/keepalived/notify.sh master"
notify_backup "/etc/keepalived/notify.sh backup"
notify_fault "/etc/keepalived/notify.sh fault"
track_script {
check_haproxy
}
}
##创建haproxy业务子配置文件，直接从ka1节点拷贝过来就行
[root@ka2 ~]$ scp 10.0.0.8:/etc/haproxy/conf.d/web.cfg /etc/haproxy/conf.d
##重启服务
[root@ka2 ~]$ systemctl restart keepalived.service haproxy.service
两台keepalived状态页信息，测试keepalived业务搭建成功
9 整体架构完成，业务访问测试
[root@internet ~]$ curl -I www.yanlinux.org
HTTP/1.1 200 OK
server: nginx
date: Fri, 10 Mar 2023 06:36:29 GMT
content-type: text/html; charset=utf-8
set-cookie: KOD_SESSION_ID=aae53db9278d6386198b98a7a0441608; expires=Fri, 10-Mar-2023 10:36:29 GMT; Max-Age=14400; path=/; HttpOnly
set-cookie: CSRF_TOKEN=FGJc4urT5PVxmrWT; expires=Fri, 17-Mar-2023 06:36:29 GMT; Max-Age=604800; path=/
[root@internet ~]$ curl -I www.yanlinux.edu
HTTP/1.1 200
server: nginx/1.22.1
date: Fri, 10 Mar 2023 06:38:27 GMT
content-type: text/html;charset=UTF-8
set-cookie: csrf_token=c871c9a8e1e34c38a7773ad96cea0f09; Path=/
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