Shulou(Shulou.com)06/02 Report--

Prepare the yum feed

Cd / etc/yum.repos.d/

Rm-rf *

Wget http://mirrors.aliyun.com/repo/Centos-7.repo

Wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

Wget http://mirrors.aliyun.com/repo/epel-7.repo

Yum repolist

Configure keepalived

Yum-y install keepalived

Vim / etc/keepalived/keepalived.conf

Vrrp_instance VI_1 {

State MASTER # the other server is SLAVE

Interface ens33 # defaults to eth0. Be sure to modify it.

Virtual_router_id 51

Priority 100 # the other server has a priority lower than 100

Advert_int 1

Authentication {

Auth_type PASS

Auth_pass 1111

}

Virtual_ipaddress {

192.168.1.19

}

}

Turn off master and test whether slave can take over from master

Systemctl stop keepalived

View on slave

Tail-f / var/log/messages

Jul 24 14:09:37 jenkins-slave Keepalived_vrrp [3340]: VRRP_Instance (VI_1) Entering MASTER STATE

Configure haproxy

Cd / usr/local/src/

Upload the haproxy package to this directory

Yum install gcc gcc-c++ glibc glibc-devel pcre pcre-devel openssl openssl-devel systemd-devel net-tools vim iotop bc zip unzip zlib-devel lrzsz tree screen lsof tcpdump wget ntpdate-y

Tar xvf haproxy-1.8.13.tar.gz

Cd haproxy-1.8.13/

Make ARCH=x86_64 TARGET=linux2628 USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 USE_SYSTEMD=1 USE_CPU_AFFINITY=1 PREFIX=/usr/local/haproxy

Make install PREFIX=/usr/local/haproxy

Cp haproxy / usr/sbin/

Haproxy-v

Prepare the startup script

Vim / usr/lib/systemd/system/haproxy.service

[Unit]

Description=HAProxy Load Balancer

After=syslog.target network.target

[Service]

ExecStartPre=/usr/sbin/haproxy-f / etc/haproxy/haproxy.cfg-f / etc/haproxy/conf-c-Q

ExecStart=/usr/sbin/haproxy-Ws-f / etc/haproxy/haproxy.cfg-f / etc/haproxy/conf-p / r

Un/haproxy.pidExecReload=/bin/kill-USR2 $MAINPID

[Install]

WantedBy=multi-user.target

Prepare the haproxy profile

This directory is required in the mkdir-p / var/lib/haproxy # configuration file

Mkdir-p / etc/haproxy/conf

Cd / etc/haproxy/

Vim haproxy.cfg

Global

Maxconn 100000

Chroot / usr/local/haproxy

Stats socket / var/lib/haproxy/haproxy.sock mode 60000level admin # dynamically adjust the backend

Uid 99

Gid 99

Daemon

Nbproc 4

Cpu-map 1 0

Cpu-map 2 1

Cpu-map 3 2

Cpu-map 4 3

Pidfile / usr/local/haproxy/run/haproxy.pid

Log 127.0.0.1 local3 info

Defaults

Option http-keep-alive

Option forwardfor

Maxconn 100000

Mode http

Timeout connect 300000ms

Timeout client 300000ms

Timeout server 300000ms

Listen stats

Mode http

Bind 0.0.0.0:9999

Stats enable

Log global

Stats uri / haproxy-status

Stats auth admin:mypassword

Http://192.168.1.19:9999/haproxy-status

Prepare the business profile

Cd conf/

Vim tomcat-server.cfg

Listen web_port

Bind 192.168.1.19:80 # VIP

Mode http

Log global

Server 192.168.1.17 192.168.1.17:8080 check inter 3000 fall 2 rise 5

Server 192.168.1.18 192.168.1.18:8080 check inter 3000 fall 2 rise 5

Sysctl-a | grep nonlocal

Sysctl-a | grep forward

Vim / etc/sysctl.conf

Net.ipv4.ip_nonlocal_bind = 1

Net.ipv4.ip_forward = 1

Sysctl-p

Systemctl start haproxy

Systemctl enable haproxy

Systemctl status haproxy

Ss-tnl | grep 80

LISTEN 0 128 192.168.1.19:80:

Http://192.168.1.19/web01/

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