安裝環境：centos6.6 x64
nginx版本：1.9.3
keepalived版本：1.2.18
ipvip
主節點192.168.11.21
192.168.11.20
備節點192.168.11.22
192.168.11.20
1.1、安裝openssl
# tar -zxvf openssl-1.0.0s.tar.gz
# ./configure
# make && make install
# tar -zxvf pcre-7.8.tar.gz
# tar -zxvf nginx-1.9.3.tar.gz
# cd nginx-1.9.3
# ./configure --prefix=/usr/local/nginx--with-pcre=/usr/local/src/pcre-7.8
# make && make install
/usr/loca/nginx/sbin/nginx
# tar -zxvf keepalived-1.2.18.tar.gz
# cd keepalived-1.2.18
# ./configure --prefix=/usr/local/keepalived
# make && make install
將keepalived安裝成linux系統服務：
# mkdir/etc/keepalived
# cp/usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
# cp/usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
# cp/usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
# ln -s /usr/local/sbin/keepalived /usr/sbin/
#ln -s /usr/local/keepalived/sbin/keepalived /sbin/
設定keepalived服務開機啟動
# chkconfig keepalived on
修改keepalived配置檔案
# vi/etc/keepalived/keepalived.conf
! configuration file for keepalived
global_defs
vrrp_script chk_nginx
vrrp_instance vi_1
virtual_ipaddress
track_script
}
# vi/etc/keepalived/keepalived.conf
! configuration file for keepalived
global_defs
vrrp_script chk_nginx
vrrp_instance vi_1
virtual_ipaddress
track_script }
編寫nginx狀態檢測指令碼/etc/keepalived/nginx_check.sh
內容如下：
#!/bin/bash
a=`ps -c nginx --no-header |wc -l`
if [ $a -eq 0 ];then
/usr/local/nginx/sbin/nginx
sleep 2
if [ `ps -c nginx --no-header |wc -l` -eq 0 ];then
killall keepalived
service keepalived stop
fifi
儲存後，給指令碼賦執行許可權：
# chmod +x /etc/keepalived/nginx_check.sh
關閉防火牆:
#service iptable stop
分別在兩台主機上啟動nginx和keepalived
# /usr/loca/nginx/sbin/nginx
# service keepalived start
檢視虛擬ip新增是否成功（
紅色部分為vip）
# ip a
eth1:
mtu 1500 qdiscpfifo_fast state up qlen 1000
link/ether 00:0c:29:2e:4c:00brd ff:ff:ff:ff:ff:ff
inet 192.168.11.21/24 brd192.168.152.255 scope global eth1
inet 192.168.11.20/32scope global eth1
inet6fe80::20c:29ff:fe2e:4c00/64 scope link
valid_lft foreverpreferred_lft forever
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