Keepalived+haproxy
实验目的：实现可以ssision保持的高可用负载均衡
Keepalived作用高可用，配置管理为互为主从设置
Haproxy 用于负载均衡会话保持
同一个使用yum 安装
配置拓扑图
实验目的：实现可以ssision保持的高可用负载均衡
Keepalived作用高可用，配置管理为互为主从设置
Haproxy 用于负载均衡会话保持
同一个使用yum 安装
配置拓扑图
Vip keep1 192.168.6.226
Vip keep2 192.168.6.227
Web1 192.168.6.1
Web2 192.168.6.2
Web3 192.168.6.3
http1 192.168.6.5
http2 192.168.6.6
http3 192.168.6.7
keepalived 1 步骤
yum install keepalived –y
vim /etc/keepalived/keepalived.conf
! Configuration Fileforkeepalived
global_defs {
notification_email {
root@localhost
}
notification_email_from admin@lnmmp.com
smtp_connect_timeout 3
smtp_server 127.0.0.1
router_id LVS_DEVEL
}
vrrp_script chk_maintaince_down {
script"[[ -f /etc/keepalived/down ]] && exit 1 || exit0"
interval 1
weight 2
}
vrrp_script chk_haproxy {
script"killall -0 haproxy"
interval 1
weight 2
}
vrrp_instance VI_1 {
interface br0
state BACKUP
priority 50
virtual_router_id 125
garp_master_delay 1
authentication {
auth_type PASS
auth_pass 1e3459f77aba4ded
}
track_interface {
br0
}
virtual_ipaddress {
192.168.6.226/32 dev br0 label br0:0
}
track_script {
chk_haproxy
}
notify_master"/etc/keepalived/notify.sh master 192.168.6.227"
notify_fault"/etc/keepalived/notify.sh fault 192.168.6.227"
}
vrrp_instance VI_2 {
interface br0
state MASTER
priority 100
virtual_router_id 126
garp_master_delay 1
authentication {
auth_type PASS
auth_pass 7615c4b7f518cede
}
track_interface {
br0
}
virtual_ipaddress {
192.168.6.227/32 dev br0 label br0:1
}
track_script {
chk_haproxy
chk_maintaince_down
}
notify_master"/etc/keepalived/notify.sh master 192.168.6.228"
notify_backup"/etc/keepalived/notify.sh backup 192.168.6.228"
notify_fault"/etc/keepalived/notify.sh fault 192.168.6.228"
}
Keepalived2配置步骤
! Configuration Fileforkeepalived
global_defs {
notification_email {
root@localhost
}
notification_email_from admin@lnmmp.com
smtp_connect_timeout 3
smtp_server 127.0.0.1
router_id LVS_DEVEL
}
vrrp_script chk_maintaince_down {
script"[[ -f /etc/keepalived/down ]] && exit 1 || exit0"
interval 1
weight 2
}
vrrp_script chk_haproxy {
script"killall -0 haproxy"
interval 1
weight 2
}
vrrp_instance VI_1 {
interface br0
state MASTER
priority 100
virtual_router_id 125
garp_master_delay 1
authentication {
auth_type PASS
auth_pass 1e3459f77aba4ded
}
track_interface {
br0
}
virtual_ipaddress {
192.168.6.227/32 dev br0 label br0:0
}
track_script {
chk_haproxy
}
notify_master"/etc/keepalived/notify.sh master 192.168.6.227"
notify_fault"/etc/keepalived/notify.sh fault 192.168.6.227"
}
vrrp_instance VI_2 {
interface br0
state BACKUP
priority 50
virtual_router_id 126
garp_master_delay 1
authentication {
auth_type PASS
auth_pass 7615c4b7f518cede
}
track_interface {
br0
}
virtual_ipaddress {
192.168.6.228/32 dev br0 label br0:1
}
track_script {
chk_haproxy
chk_maintaince_down
}
notify_master"/etc/keepalived/notify.sh master 192.168.6.228"
notify_backup"/etc/keepalived/notify.sh backup 192.168.6.228"
notify_fault"/etc/keepalived/notify.sh fault 192.168.6.228"
}
Keepalived配置完成
查看配置
Ip add
Keepalived 1
inet 192.168.6.223/24 brd 192.168.6.255scope global br0
inet 192.168.6.226/32scope global br0:0
keepalived2
inet192.168.6.224/24 brd 192.168.6.255 scope global br0
inet192.168.6.227/32 scope global br0:0
haproxy 配置
yum installhaproxy
vim/etc/haproxy/haproxy.cfg
global #全局设置
log 127.0.0.1 local0 #日志输出配置，所有日志都记录在本机，通过local0输出
#log loghost local0 info
maxconn 4096 #最大连接数
chroot /usr/local/haproxy
uid 99 #所属运行的用户uid
gid 99 #所属运行的用户组
daemon #以后台形式运行haproxy
nbproc 2 #启动2个haproxy实例
pidfile/usr/local/haproxy/haproxy.pid #将所有进程写入pid文件
#debug
#quiet
defaults #默认设置
#log global
log 127.0.0.1 local3 #日志文件的输出定向
mode http #所处理的类别,默认采用http模式，可配置成tcp作4层消息转发
option httplog #日志类别,采用httplog
option dontlognull
option forwardfor #如果后端服务器需要获得客户端真实ip需要配置的参数，可以从Http Header中获得客户端ip
option httpclose #每次请求完毕后主动关闭http通道,haproxy不支持keep-alive,只能模拟这种模式的实现
retries 3 #3次连接失败就认为服务器不可用，主要通过后面的check检查
option redispatch #当serverid对应的服务器挂掉后，强制定向到其他健康服务器
maxconn 2000 #最大连接数
stats uri /haproxy-admin #haproxy 监控页面的访问地址
timeoutconnect 5000 #连接超时时间
timeout client 50000 #客户端连接超时时间
timeoutserver 50000
stats auth Frank:Frank #设置监控页面的用户和密码：Frank
statshide-version #隐藏统计页面的HAproxy版本信息
frontend main *:5000
acl url_static path_beg -i /static /images /javascript/stylesheets
acl url_static1 path_end -i .jpg .gif .png .css .js .html .php
use_backend static if url_static
default_backend web
use_backend static if url_static1
default_backend http
backend static
balance roundrobin
server static 127.0.0.1:4331 check
#---------------------------------------------------------------------
# round robinbalancing between the various backends
#---------------------------------------------------------------------
backend web
balance roundrobin 负载均衡算法
cookie SESSION_COOKIE insert indirect nocache 会话保持
server web1 192.168.6.1:80 cookie 1weight 5 check inter 2000 rise 2 fall 3
server web2 192.168.6.2:80 cookie 1 weight 2 check inter 2000 rise 2 fall3
server web3 192.168.6.3:80 cookie 1 weight 3 check inter 2000 rise 2 fall3
backend http
balance roundrobin 负载均衡算法
cookie SESSION_COOKIE insert indirect nocache 会话保持
server web1 192.168.6.5:80 cookie 1 weight 5 check inter 2000 rise 2fall 3
server web2 192.168.6.6:80 cookie 1 weight 2 check inter 2000 rise 2fall 3
server web3 192.168.6.7:80 cookie 1 weight 3 check inter 2000 rise 2fall 3
haproxy2同 haproxy1
查看haproxy图
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