RabbitMQ - Cluster+HA(haproxy+keepalived)热备(4)

2020-03-27 05:32

retries 3

option redispatch maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 timeout check 5s

listen admin_stat

bind *:8888 ##Haproxy管理页面 mode http

stats refresh 30s

stats uri /haproxy_stats

stats realm Haproxy\\ Statistics stats auth admin:admin ##登录名和密码 stats hide-version

##监听5670端口，并转发给三个节点的5672端口，采用轮询策略

listen rabbitmq_cluster *:5670

balance roundrobin

server rabbitmq-1 192.168.100.191:5672 check inter 2000 rise 2 fall server rabbitmq-2 192.168.100.192:5672 check inter 2000 rise 2 fall server rabbitmq-3 192.168.100.193:5672 check inter 2000 rise 2 fall EOF

##安装Keepalived

apt-get –y install keepalived ##配置Keepalived

cat </etc/keepalived/keepalived.conf vrrp_script chk_haproxy {

script \ interval 2 }

vrrp_instance VI_1 {

state MASTER interface eth0

errorfile 400 /etc/haproxy/errors/400.http errorfile 403 /etc/haproxy/errors/403.http errorfile 408 /etc/haproxy/errors/408.http errorfile 500 /etc/haproxy/errors/500.http errorfile 502 /etc/haproxy/errors/502.http errorfile 503 /etc/haproxy/errors/503.http errorfile 504 /etc/haproxy/errors/504.http

virtual_router_id 51

priority 101 ##高优先级，主节点 authentication {

auth_type PASS auth_pass rabbitmq }

track_script {

chk_haproxy }

virtual_ipaddress {

192.168.100.195 } EOF

##创建监控Haproxy进程的脚本

mkdir -p /etc/keepalived/scripts/

cat < /etc/keepalived/scripts/haproxy_check.sh #!/bin/bash

LOGFILE=\

pid1=\\`ps aux|grep /etc/haproxy/haproxy.cfg | grep -v grep | grep -v bash | wc –l\\`

if [ \

echo \ date +%Y%m%d-%H:%M:%S >> \\$LOGFILE

echo \

haproxy -f /etc/haproxy/haproxy.cfg –D ##启动Haproxy

pid2=\\`ps aux|grep /etc/haproxy/haproxy.cfg | grep -v grep | grep -v bash |wc –l\\`

if [ \

echo \\\$LOGFILE

/etc/init.d/keepalived stop else

echo \ fi fi EOF

##启动keepalived服务，Haproxy服务也会一起启动的。 service keepalived restart

5.2 Rabbit3主机

vim 03_rabbit2_ha+keep.sh #!/bin/bash ##安装配置Haproxy

apt-get -y install haproxy ##配置Haproxy

cat < haproxy.cfg global

defaults

log mode

global http

log 127.0.0.1 log 127.0.0.1

local0

local1 notice

chroot /var/lib/haproxy user haproxy group haproxy daemon

maxconn 4096

option httplog option dontlognull

retries 3

option redispatch maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 timeout check 5s

listen admin_stat

bind *:8888 ##Haproxy的管理端口 mode http

stats refresh 30s

stats uri /haproxy_stats

stats realm Haproxy\\ Statistics stats auth admin:admin stats hide-version

##监听5670端口，并转发给三个节点的5672端口，采用轮询策略

listen rabbitmq_cluster *:5670

balance roundrobin

##安装Keepalived

apt-get –y install keepalived ##配置Keepalived

cat </etc/keepalived/keepalived.conf vrrp_script chk_haproxy {

script \ interval 2 }

vrrp_instance VI_1 {

state MASTER interface eth0 virtual_router_id 51

priority 100 ##低优先级，备节点 authentication {

auth_type PASS auth_pass rabbitmq }

track_script {

chk_haproxy }

virtual_ipaddress {

192.168.100.195 } EOF

##创建监控Haproxy进程的脚本

mkdir -p /etc/keepalived/scripts/

cat < /etc/keepalived/scripts/haproxy_check.sh

#!/bin/bash

LOGFILE=\

pid1=\\`ps aux|grep /etc/haproxy/haproxy.cfg | grep -v grep | grep -v bash | wc –l\\`

if [ \

echo \ date +%Y%m%d-%H:%M:%S >> \\$LOGFILE

echo \

haproxy -f /etc/haproxy/haproxy.cfg –D ##启动Haproxy

pid2=\\`ps aux|grep /etc/haproxy/haproxy.cfg | grep -v grep | grep -v bash |wc –l\\`

if [ \

echo \\\$LOGFILE

/etc/init.d/keepalived stop else

echo \ fi fi EOF

##启动keepalived服务，Haproxy服务也会一起启动的。 service keepalived restart

5.3 登录Haproxy的管理端页面

http://192.168.100.192:8888/haproxy_stats http://192.168.100.193:8888/haproxy_stats http://192.168.100.195:8888/haproxy_stats

可以查看到Haproxy的一些基本信息。

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