一、分別在backup lvs和master lvs上安裝LVS 二、分別在backup lvs和master lvs上安裝keepalived 三、修改keepalived相關配置 虛擬VIP：192.168.20.229 分流WEB：192.168.20.200、192.168.20.201 四 ...
一、分別在backup lvs和master lvs上安裝LVS
wget http://www.linuxvirtualserver.org/software/kernel-2.6/ipvsadm-1.24.tar.gz
uname -r ln -s /usr/src/kernels/2.6.18-164.el5-i686/ /usr/src/linux tar zxvf ipvsadm-1.24.tar.gz cd ipvsadm-1.24 make && make install
二、分別在backup lvs和master lvs上安裝keepalived
wget http://www.keepalived.org/software/keepalived-1.1.19.tar.gz tar zxvf keepalived-1.1.19.tar.gz cd keepalived-1.1.19 ./configure --prefix=/usr/local/keepalived make make install cp /usr/local/keepalived/sbin/keepalived /usr/sbin/ cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/ mkdir /etc/keepalived
三、修改keepalived相關配置
vi /etc/sysconfig/keepalived KEEPALIVED_OPTIONS="-D -f /usr/local/keepalived/etc/keepalived/keepalived.conf"
vi /etc/init.d/keepalived #更新 . /etc/sysconfig/keepalived PATH="$PATH:/usr/sbin" export PATH
vi /usr/local/keepalived/etc/keepalived/keepalived.conf ! Configuration File for keepalived global_defs { notification_email { [email protected] } notification_email_from [email protected] smtp_server localhost smtp_connect_timeout 30 router_id NodeA } vrrp_instance VI_1 { state MASTER interface ens160 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.20.229 //虛擬IP } } virtual_server 192.168.20.229 80 { //定義虛擬伺服器 delay_loop 6 //健康檢查時間，單位是秒 lb_algo rr //負載調度演算法，這裡設置為rr，即輪詢演算法 lb_kind DR //LVS實現負載均衡的機制，可以有NAT、TUN和DR三個模式可選 persistence_timeout 1 //會話保持時間，單位是秒（可以適當延長時間以保持session） protocol TCP //轉發協議類型，有tcp和udp兩種 real_server 192.168.20.200 8151 { //定義WEB伺服器 weight 1 //權重 TCP_CHECK { //通過tcpcheck判斷RealServer的健康狀態 connect_timeout 5 //連接超時時間 nb_get_retry 3 //重連次數 delay_before_retry 3 //重連間隔時間 connect_port 8151 //檢測埠 } } real_server 192.168.20.201 8151 { //定義WEB伺服器 weight 2 //權重 TCP_CHECK { //通過tcpcheck判斷RealServer的健康狀態 connect_timeout 5 //連接超時時間 nb_get_retry 3 //重連次數 delay_before_retry 3 //重連間隔時間 connect_port 8151 //檢測埠 } } }
虛擬VIP：192.168.20.229
分流WEB：192.168.20.200、192.168.20.201
四、啟動keepalived
/etc/init.d/keepalived start
五、測試
ipvsadm IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP docker223:80 rr persistent 1 -> 192.168.20.200:8151 Route 1 0 0
瀏覽器訪問 http://192.168.20.229 分流 http://192.168.20.200:8151 WEB服務
