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keepalived+haproxy高可用

發(fā)布時(shí)間：2020-07-04 15:44:23 來源：網(wǎng)絡(luò) 閱讀：634 作者：無雙戰(zhàn)績 欄目：云計(jì)算 
環(huán)境：
主Haproxy服務(wù)器    192.168.80.100   keepalived+Haproxy
備Haproxy服務(wù)器    192.168.80.101   keepalived+Haproxy
web服務(wù)器1             192.168.80.102  httpd（nginx、tomcat）
web服務(wù)器2             192.168.80.103  httpd
80.100和80.101需要聯(lián)網(wǎng)

———————————————————————————————————————
在80.100虛擬機(jī)上：

systemctl stop firewalld        //關(guān)閉防火墻
setenforce 0                 //關(guān)閉監(jiān)控
cd /etc/yum.repos.d/    //進(jìn)入目錄
cp back/* ./         //把back里內(nèi)容移動(dòng)到上一個(gè)目錄
ls               //查看目錄內(nèi)容

keepalived+haproxy高可用

yum install -y epel-release
yum install ntp -y           //安裝ntp
ntpdate time1.aliyun.com        //同步網(wǎng)絡(luò)時(shí)間
date

keepalived+haproxy高可用

yum install keepalived -y         //安裝keepalived
cd       //回到根目錄
vi /etc/keepalived/keepalived.conf`
刪除所有內(nèi)容并添加以下內(nèi)容：
! Configuration File for keepalived
global_defs {
        route_id haproxy-01
   }
vrrp_script haproxy {    定義一個(gè)熱備腳本取名為haproxy
        script "/opt/haproxy.sh"    # 檢測 haproxy 狀態(tài)的腳本路徑
        interval 2    # 檢測時(shí)間間隔
        weight 2    # 如果條件成立，權(quán)重+2
}
vrrp_instance VI_1 {
    state MASTER
    interface ens32
    virtual_router_id 51
    priority 150
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    track_script {    # 將 track_script 塊加入 instance 配置塊
        haproxy    # 檢查 HAProxy 服務(wù)是否存活
        }
    virtual_ipaddress {
        192.168.80.188
    }
}

:wq

keepalived+haproxy高可用

scp /etc/keepalived/keepalived.conf root@192.168.80.101:/etc/keepalived/keepalived.conf      //把keepalived.conf傳送到80.101中
yes
root密碼

keepalived+haproxy高可用

yum install lrz* -y        //安裝上傳軟件
把haproxy軟件包拉入

keepalived+haproxy高可用

scp haproxy-1.5.15.tar.gz root@192.168.80.101:/root      //把haproxy軟件包傳送到80.101中
密碼

keepalived+haproxy高可用

tar xf haproxy-1.5.15.tar.gz -C /opt/          //解壓haproxy軟件包
cd /opt/haproxy-1.5.15/           
源碼編譯安裝haproxy
yum install -y \
pcre-devel \
bzip2-devel \
gcc \
gcc-c++ \
make
make TARGET=linux26  PREFIX=/usr/local/haproxy    //標(biāo)識(shí)64為系統(tǒng)
make install PREFIX=/usr/local/haproxy
mkdir /etc/haproxy          //創(chuàng)建目錄
cd
useradd -M -s /sbin/nologin haproxy
id  haproxy

keepalived+haproxy高可用

cd /opt/haproxy-1.5.15/
cp examples/haproxy.cfg /etc/haproxy
vi /etc/haproxy/haproxy.cfg
修改以下內(nèi)容：
#       chroot /usr/share/haproxy        注釋這一行
uid 1000
gid 1000
在default模塊下
統(tǒng)計(jì)頁面模塊內(nèi)容
listen admin_stats
    bind 0.0.0.0:8089
    stats enable
    mode http
    log global
    stats uri  /stats
    stats realm Haproxy\ Statistics
    stats auth  admin:admin
    #stats hide-version
    stats admin if TRUE
    stats refresh 30s
web服務(wù)器/終端
listen webcluster
        bind 0.0.0.0:80
        mode http
        option httpchk GET /index.html
        log global
        maxconn 3000
        balance roundrobin
server web01 192.168.80.102:80 check inter 2000 fall 5
server web02 192.168.80.103:80 check inter 2000 fall 5

:wq

keepalived+haproxy高可用
keepalived+haproxy高可用

cd /opt/
ls

keepalived+haproxy高可用

vi haproxy.sh
#!/bin/bash
if [ $(ps -C haproxy --no-header | wc -l) -eq 0 ];then
        /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg      啟動(dòng)haproxy服務(wù)
fi
sleep 2     等待2秒
if [ $(ps -C haproxy --no-header | wc -l) -eq 0 ];then
        service keepalived stop
fi

   :wq        //保存退出

keepalived+haproxy高可用

chmod +x /opt/haproxy.sh       //給這個(gè)文件設(shè)置權(quán)限
cd /opt/haproxy-1.5.15/
cp examples/haproxy.init /etc/init.d/haproxy
chmod +x /etc/init.d/haproxy
ll /etc/init.d/haproxy
chkconfig --add haproxy
ln -s /usr/local/haproxy/sbin/haproxy  /usr/sbin/haproxy     //軟鏈接
cat /var/log/messages

keepalived+haproxy高可用

service haproxy start        //啟動(dòng)服務(wù)

keepalived+haproxy高可用

netstat -anpt | grep haproxy

keepalived+haproxy高可用

在網(wǎng)頁上輸入192.168.80.100:8089/stats

keepalived+haproxy高可用

scp haproxy.cfg root@192.168.80.101:/etc/haproxy/             //把haproxy.cfg 傳送到80.101虛擬機(jī)上
密碼

keepalived+haproxy高可用

service haproxy stop
netstat -anpt | grep haproxy
systemctl start keepalived
ip addr show ens32
netstat -anpt | grep haproxy

keepalived+haproxy高可用
——————————————————————————————————————
在80.101虛擬機(jī)上：

systemctl stop firewalld        //關(guān)閉防火墻
setenforce 0                 //關(guān)閉監(jiān)控
cd /etc/yum.repos.d/    //進(jìn)入目錄
cp back/* ./         //把back里內(nèi)容移動(dòng)到上一個(gè)目錄
ls               //查看目錄內(nèi)容

keepalived+haproxy高可用

yum install -y epel-release
yum install ntp -y           //安裝ntp
ntpdate time1.aliyun.com        //同步網(wǎng)絡(luò)時(shí)間
date
yum install keepalived -y         //安裝keepalived
cd       //回到根目錄

vi /etc/keepalived/keepalived.conf //進(jìn)入成以下內(nèi)容：
keepalived+haproxy高可用
修改成以下內(nèi)容：
keepalived+haproxy高可用

ls
tar xf haproxy-1.5.15.tar.gz -C /opt/
cd /opt/haproxy-1.5.15/

keepalived+haproxy高可用

源碼編譯安裝haproxy
yum install -y \
pcre-devel \
bzip2-devel \
gcc \
gcc-c++ \
make
make TARGET=linux26  PREFIX=/usr/local/haproxy    //標(biāo)識(shí)64為系統(tǒng)
make install PREFIX=/usr/local/haproxy
mkdir /etc/haproxy
useradd -s /sbin/nologin -M  haproxy
id  haproxy

keepalived+haproxy高可用

ls /etc/haproxy/
cp examples/haproxy.init /etc/init.d/haproxy
chmod +x /etc/init.d/haproxy             //給這個(gè)文件設(shè)置權(quán)限
chkconfig --add haproxy
ln -s /usr/local/haproxy/sbin/haproxy  /usr/sbin/haproxy     //軟鏈接

keepalived+haproxy高可用

service haproxy start        //啟動(dòng)服務(wù)
netstat -anpt | grep haproxy
service haproxy stop       //關(guān)閉服務(wù)
netstat -anpt | grep haproxy
cd /opt/
vi haproxy.sh
#!/bin/bash
#Filename:
A=$(ip addr | grep 192.168.80.188/32 | grep -v grep | wc -l)
if [ $A -gt 0 ]; then
        service haproxy start
else
        service haproxy stop
fi

   :wq
chmod +x haproxy.sh         //設(shè)置權(quán)限
ll                          
systemctl start keepalived     
ip addr show ens32
netstat -anpt | grep haproxy

————————————————————————————————————
在80.102虛擬機(jī)上：

systemctl stop firewalld      //關(guān)閉防火墻
setenforce 0          //關(guān)閉監(jiān)控
yum install httpd -y        //安裝httpd
vi /etc/httpd/conf/httpd.conf
把ServerName www.example.com:80 前面的#刪除

keepalived+haproxy高可用

cd /var/www/html/       //進(jìn)入這個(gè)目錄
echo "<h2>server aa</h2>" > index.html
systemctl start httpd      //啟動(dòng)服務(wù)
在網(wǎng)頁上輸入192.168.80.102

keepalived+haproxy高可用
—————————————————————————————————————
在80.103虛擬機(jī)上：

systemctl stop firewalld      //關(guān)閉防火墻
setenforce 0          //關(guān)閉監(jiān)控
yum install httpd -y        //安裝httpd
vi /etc/httpd/conf/httpd.conf
把ServerName www.example.com:80 前面的#刪除

keepalived+haproxy高可用

cd /var/www/html/       //進(jìn)入這個(gè)目錄
echo "<h2>server bb</h2>" > index.html
systemctl start httpd      //啟動(dòng)服務(wù)
在網(wǎng)頁上輸入192.168.80.103

keepalived+haproxy高可用

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