Docker 部署 emqx4.3.12 集群
docker 部署 emqx 集群 自己调研一个周.感觉这个 emqx 集群也是相当价值去研究的,首先安装docker,这里就不在介绍.接下来都在一台服务器上执行的
1.docker 中创建网桥
docker network create -d bridge --subnet=192.168.174.0/16 emqx_bridge2.执行创建emqx集群脚本
第一台
docker run -d \
--hostname emqx01 \
--name emqx01 \
--network emqx_bridge \
--ip 192.168.0.10 \
-p 60001:1883 \
-p 60004:8083 \
-p 60010:8883 \
-p 60007:8084 \
-p 60016:18083 \
-p 60013:11883 \
-v /etc/localtime:/etc/localtime:ro emqx/emqx:v4.3.12第二台
docker run -d \
--hostname emqx02 \
--name emqx02 \
--network emqx_bridge \
--ip 192.168.0.11 \
-p 60002:1883 \
-p 60005:8083 \
-p 60011:8883 \
-p 60008:8084 \
-p 60017:18083 \
-p 60014:11883 \
-v /etc/localtime:/etc/localtime:ro emqx/emqx:v4.3.12第三台
docker run -d \
--hostname emqx03 \
--name emqx03 \
--network emqx_bridge \
--ip 192.168.0.12 \
-p 60003:1883 \
-p 60006:8083 \
-p 60012:8883 \
-p 60009:8084 \
-p 60018:18083 \
-p 60015:11883 \
-v /etc/localtime:/etc/localtime:ro emqx/emqx:v4.3.123. 创建集群
docker exec -it emqx02 sh
./emqx_ctl cluster join [email protected]
docker exec -it emqx03 sh
./emqx_ctl cluster join [email protected]
4.haproxy代理使用
为什么使用haproxy? 经过多次测试,我们直接去拿着192.168.0.10 去访问web ui 反而拒绝,这是因为192.168.0.10 是docker里的网段,无法访问,这里和k8s里的原理挺像的
5. 安装haproxy 默认是1.5.8版本的
yum -y install haproxy
修改配置文件haproxy.cfg
# Global settings
#---------------------------------------------------------------------
global
log 127.0.0.1 local0
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
# turn on stats unix socket
stats socket /var/lib/haproxy/stats
#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
mode tcp
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
frontend main *:5555
#---------------------------------------------------------------------
# round robin balancing between the various backends
#--------------------------------------------------------------------
backend mqtt_backend
balance leastconn
server eqmx01 192.168.0.10:1883 check inter 10000 fall 2 rise 5 weight 1
server eqmx02 192.168.0.11:1883 check inter 10000 fall 2 rise 5 weight 1
server eqmx03 192.168.0.12:1883 check inter 10000 fall 2 rise 5 weight 1
listen admin_stats
mode http
stats enable
bind *:8888
stats refresh 30s
stats uri /admin
stats realm haproxy
stats auth root:root
stats hide-version重启 haproxy即可
systemctl haproxy restart
说明下: 5555 这个端口是数据转发的端口 8888 这个端口是web ui 页面访问的