CentOS7编译安装keepalived实现自动漂移、高可用及开机启动

一、先安装依赖包
[root@haoding205-jq1 hd205]# yum install -y epel-release
[root@haoding205-jq1 hd205]# yum install -y gcc gcc-c++ openssl openssl-devel popt-devel kernel-devel libnfnetlink-devel

二、安装keepalived
[root@haoding205-jq1 hd205]# ll
总用量 7796
-rw-rw-r-- 1 haoding haoding 289380 9月 13 11:28 keepalived-1.2.24.tar.gz
[root@haoding205-jq1 hd205]# cp keepalived-1.2.24.tar.gz /usr/local/src/
[root@haoding205-jq1 hd205]# cd /usr/local/src/
[root@haoding205-jq1 src]# ll
总用量 284
-rw-r–r-- 1 root root 289380 9月 13 11:34 keepalived-1.2.24.tar.gz
[root@haoding205-jq1 src]# gzip -cdf keepalived-1.2.24.tar.gz | tar -xvf -
[root@haoding205-jq1 src]# ll
总用量 288
drwxrwxr-x 7 haoding haoding 4096 8月 29 2012 keepalived-1.2.24
-rw-r–r-- 1 root root 289380 9月 13 11:34 keepalived-1.2.24.tar.gz
[root@haoding205-jq1 src]# cd keepalived-1.2.24
[root@haoding205-jq1 keepalived-1.2.24]# ll
总用量 356
-rw-rw-r-- 1 haoding haoding 41 7月 19 2012 AUTHOR
drwxrwxr-x 2 haoding haoding 23 8月 29 2012 bin
-rw-rw-r-- 1 haoding haoding 107055 8月 29 2012 ChangeLog
-rwxrwxr-x 1 haoding haoding 165821 8月 14 2012 configure
-rw-rw-r-- 1 haoding haoding 9818 8月 14 2012 configure.in
-rw-rw-r-- 1 haoding haoding 830 7月 19 2012 CONTRIBUTORS
-rw-rw-r-- 1 haoding haoding 17982 7月 19 2012 COPYING
drwxrwxr-x 4 haoding haoding 107 8月 29 2012 doc
drwxrwxr-x 2 haoding haoding 4096 8月 29 2012 genhash
-rw-rw-r-- 1 haoding haoding 1601 7月 19 2012 INSTALL
-rwxrwxr-x 1 haoding haoding 5598 7月 19 2012 install-sh
drwxrwxr-x 9 haoding haoding 118 8月 29 2012 keepalived
-rw-rw-r-- 1 haoding haoding 5229 7月 19 2012 keepalived.spec.in
drwxrwxr-x 2 haoding haoding 4096 8月 29 2012 lib
-rw-rw-r-- 1 haoding haoding 1259 8月 14 2012 Makefile.in
-rw-rw-r-- 1 haoding haoding 1007 7月 19 2012 README
-rw-rw-r-- 1 haoding haoding 20 8月 29 2012 TODO
-rw-rw-r-- 1 haoding haoding 6 8月 29 2012 VERSION

[root@haoding205-jq1 keepalived-1.2.24]# pwd
/usr/local/src/keepalived-1.2.24
[root@haoding205-jq1 keepalived-1.2.24]# ./configure --prefix=/usr/local/keepalived

Use IPVS Framework : Yes
IPVS sync daemon support : Yes
Use VRRP Framework : Yes
# 必须看到如上的提示，说明配置正确，才能继续后面的安装

[root@haoding205-jq1 keepalived-1.2.24]# make

[root@haoding205-jq1 keepalived-1.2.24]# make install

[root@haoding205-jq1 keepalived-1.2.24]# find / -name keepalived.conf
/usr/local/src/keepalived-1.2.24/keepalived/etc/keepalived/keepalived.conf
/usr/local/keepalived/etc/keepalived/keepalived.conf
[root@haoding205-jq1 keepalived-1.2.24]# cat /usr/local/keepalived/etc/keepalived/keepalived.conf

! Configuration File for keepalivedglobal_defs {notification_email {acassen@firewall.locfailover@firewall.locsysadmin@firewall.loc}notification_email_from Alexandre.Cassen@firewall.locsmtp_server 192.168.200.1smtp_connect_timeout 30router_id LVS_DEVEL
}vrrp_instance VI_1 {state MASTERinterface eth0virtual_router_id 51priority 100advert_int 1authentication {auth_type PASSauth_pass 1111}virtual_ipaddress {192.168.200.16192.168.200.17192.168.200.18}
}virtual_server 192.168.200.100 443 {delay_loop 6lb_algo rrlb_kind NATnat_mask 255.255.255.0persistence_timeout 50protocol TCPreal_server 192.168.201.100 443 {weight 1SSL_GET {url {path /digest ff20ad2481f97b1754ef3e12ecd3a9cc}url {path /mrtg/digest 9b3a0c85a887a256d6939da88aabd8cd}connect_timeout 3nb_get_retry 3delay_before_retry 3}}
}virtual_server 10.10.10.2 1358 {delay_loop 6lb_algo rrlb_kind NATpersistence_timeout 50protocol TCPsorry_server 192.168.200.200 1358real_server 192.168.200.2 1358 {weight 1HTTP_GET {url {path /testurl/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}url {path /testurl2/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}url {path /testurl3/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}connect_timeout 3nb_get_retry 3delay_before_retry 3}}real_server 192.168.200.3 1358 {weight 1HTTP_GET {url {path /testurl/test.jspdigest 640205b7b0fc66c1ea91c463fac6334c}url {path /testurl2/test.jspdigest 640205b7b0fc66c1ea91c463fac6334c}connect_timeout 3nb_get_retry 3delay_before_retry 3}}
}virtual_server 10.10.10.3 1358 {delay_loop 3lb_algo rrlb_kind NATnat_mask 255.255.255.0persistence_timeout 50protocol TCPreal_server 192.168.200.4 1358 {weight 1HTTP_GET {url {path /testurl/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}url {path /testurl2/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}url {path /testurl3/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}connect_timeout 3nb_get_retry 3delay_before_retry 3}}real_server 192.168.200.5 1358 {weight 1HTTP_GET {url {path /testurl/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}url {path /testurl2/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}url {path /testurl3/test.jspdigest 640205b7b0fc66c1ea91c463fac6334d}connect_timeout 3nb_get_retry 3delay_before_retry 3}}
}

[root@haoding205-jq1 keepalived-1.2.24]#

下面开始修改：
需要修改个keepalived.conf成自己想要的效果
[root@haoding205-jq2 keepalived]# vim /usr/local/keepalived/etc/keepalived/keepalived.conf

[root@haoding205-jq2 keepalived]# cat keepalived.conf

! Configuration File for keepalivedglobal_defs {notification_email {sysadmin@firewall.loc}notification_email_from Alexandre.Cassen@firewall.locsmtp_server 127.0.0.1smtp_connect_timeout 30router_id node2
}vrrp_instance VI_1 {state BACKUPinterface eno16456436984virtual_router_id 51priority 90advert_int 1authentication {auth_type PASSauth_pass 1111}virtual_ipaddress {192.168.256.233}
}

cp -R /usr/local/keepalived/etc/keepalived /etc/
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/

将keepalived命令软连接到/usr/sbin下
ln -svf /usr/local/keepalived/sbin/keepalived /usr/sbin/

修改/usr/local/keepalived/etc/rc.d/init.d/keepalived中的程序路径
. /etc/sysconfig/keepalived
改为：
. /usr/local/keepalived/etc/sysconfig/keepalived

添加启动脚本且方便用service keepalived start/stop/restart管理

cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/keepalived

添加执行权限
chmod +x /etc/init.d/keepalived

开机启动
chkconfig keepalived on

[root@haoding205-jq2 keepalived]# find / -name keepalived.conf
/etc/keepalived/keepalived.conf
/usr/local/src/keepalived-1.2.24/keepalived/etc/keepalived/keepalived.conf
/usr/local/keepalived/etc/keepalived/keepalived.conf

启动服务
service keepalived start

OK了，只要haoding-jq1与haoding-jq2相互能ping通，且没有防火墙阻挡，相互是可以切换的。

上述keepalived安装包获取路径如下：
网盘下载地址：
https://pan.baidu.com/s/1COzCRL4wS6xJeTRCE_E9VA

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CentOS7编译安装keepalived实现自动漂移、高可用及开机启动

cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/keepalived

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