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下文給大家?guī)鞮VS負(fù)載均衡群集實(shí)戰(zhàn)詳細(xì)介紹,希望能夠給大家在實(shí)際運(yùn)用中帶來一定的幫助,負(fù)載均衡涉及的東西比較多,理論也不多,網(wǎng)上有很多書籍,今天我們就用億速云在行業(yè)內(nèi)累計(jì)的經(jīng)驗(yàn)來做一個解答。
環(huán)境準(zhǔn)備:
CentOS 7-1:調(diào)度器,網(wǎng)關(guān)(需要兩塊網(wǎng)卡)外:12.0.0.1 內(nèi):192.168.200.1
CentOS 7-2:網(wǎng)站云服務(wù)器(Apache)192.168.200.110
CentOS 7-3:網(wǎng)站云服務(wù)器(Apache)192.168.200.120
CentOS 7-4:提供共享存儲 192.168.200.130
win7-1:客戶端 12.0.0.12
1.共享存儲服務(wù)器CentOS 7-4的操作:
[root@localhost ~]# rpm -q nfs-utils
nfs-utils-1.3.0-0.48.el7.x86_64
[root@localhost ~]# rpm -q rpcbind
rpcbind-0.2.0-42.el7.x86_64
2.節(jié)點(diǎn)服務(wù)器CentOS 7-2和7-3兩臺節(jié)點(diǎn)服務(wù)器:
[root@localhost ~]# yum install httpd -y
3.調(diào)度器網(wǎng)關(guān)CentOS 7-1操作:
//要先添加一個網(wǎng)絡(luò)適配器,成為兩個網(wǎng)卡
[root@localhost ~]# yum install ipvsadm -y
//先將網(wǎng)卡更改為僅主機(jī)模式
[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BOOTPROTO="static" //將dhcp改為static
DEVICE="ens33"
ONBOOT="yes"
IPADDR=192.168.200.130 //在末行下插入:IP,子網(wǎng),網(wǎng)關(guān)
NETMASK=255.255.255.0
GATEWAY=192.168.200.1
修改完成后輸入:wq保存退出
[root@localhost ~]# service network restart
Restarting network (via systemctl): [ 確定 ]
[root@localhost ~]# systemctl stop firewalld.service
[root@localhost ~]# setenforce 0
[root@localhost ~]# systemctl start nfs.service
[root@localhost ~]# systemctl status nfs.service
● nfs-server.service - NFS server and services
Loaded: loaded (/usr/lib/systemd/system/nfs-server.service; disabled; vendor preset: disabled)
Active: active (exited) since 二 2019-11-26 17:42:05 CST; 11s ago
......省略多行,狀態(tài)為Active說明正常
[root@localhost ~]# systemctl start rpcbind.service
[root@localhost ~]# systemctl status rpcbind.service
● rpcbind.service - RPC bind service
Loaded: loaded (/usr/lib/systemd/system/rpcbind.service; indirect; vendor preset: enabled)
Active: active (running) since 二 2019-11-26 17:40:23 CST; 4min 26s ago
......省略多行,狀態(tài)為Active說明正常
[root@localhost ~]# vim /etc/exports
/usr/share *(ro,sync)
/opt/accp 192.168.200.0/24(rw,sync)
/opt/benet 192.168.200.0/24(rw,sync)
//加入以上內(nèi)容之后輸入:wq保存退出
[root@localhost ~]# cd /opt/
[root@localhost opt]# mkdir benet accp
[root@localhost opt]# chmod 777 accp/ benet/ //提升權(quán)限
[root@localhost opt]# exportfs -rv //進(jìn)行發(fā)布
exporting 192.168.200.0/24:/opt/benet
exporting 192.168.200.0/24:/opt/accp
exporting *:/usr/share
[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BOOTPROTO="static" //將dhcp改為static
DEVICE="ens33"
ONBOOT="yes"
IPADDR=192.168.200.110 //在末行下插入:IP,子網(wǎng),網(wǎng)關(guān)
NETMASK=255.255.255.0
GATEWAY=192.168.200.1
修改完成后輸入:wq保存退出
[root@localhost ~]# service network restart
Restarting network (via systemctl): [ 確定 ]
[root@localhost ~]# systemctl stop firewalld.service
[root@localhost ~]# setenforce 0
[root@localhost ~]# systemctl start httpd.service
[root@localhost ~]# netstat -ntap | grep 80
tcp6 0 0 :::80 :::* LISTEN 7315/httpd
//設(shè)置網(wǎng)絡(luò)適配器為僅主機(jī)
[root@localhost ~]# ping 192.168.200.130
PING 192.168.200.130 (192.168.200.130) 56(84) bytes of data.
64 bytes from 192.168.200.130: icmp_seq=1 ttl=64 time=0.754 ms
64 bytes from 192.168.200.130: icmp_seq=2 ttl=64 time=0.368 ms
64 bytes from 192.168.200.130: icmp_seq=3 ttl=64 time=0.398 ms
[root@localhost ~]# showmount -e 192.168.200.130
Export list for 192.168.200.130:
/usr/share *
/opt/benet 192.168.200.0/24
/opt/accp 192.168.200.0/24
[root@localhost ~]# mount.nfs 192.168.200.130:/opt/accp /var/www/html/ //掛載
[root@localhost ~]# cd /var/www/html/
[root@localhost html]# echo "this is accp web" > index.html //寫首頁內(nèi)容
此時回到存儲服務(wù)器CentOS 7-4上看是否有此文件:
[root@localhost ~]# cd /opt/
[root@localhost opt]# ls
accp benet rh
[root@localhost opt]# cd accp/
[root@localhost accp]# ls
index.html
[root@localhost accp]# cat index.html
this is accp web
//此時有我們新建的index.html文件
此時,在CentOS 7-2節(jié)點(diǎn)服務(wù)器上使用火狐瀏覽器輸入:127.0.0.1看是否可以顯示我們寫入的網(wǎng)頁內(nèi)容:
[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BOOTPROTO="static" //將dhcp改為static
DEVICE="ens33"
ONBOOT="yes"
IPADDR=192.168.200.120 //在末行下插入:IP,子網(wǎng),網(wǎng)關(guān)
NETMASK=255.255.255.0
GATEWAY=192.168.200.1
//修改完成后輸入:wq保存退出
[root@localhost ~]# service network restart
Restarting network (via systemctl): [ 確定 ]
[root@localhost ~]# systemctl stop firewalld.service
[root@localhost ~]# setenforce 0
[root@localhost ~]# systemctl start httpd.service
[root@localhost ~]# netstat -ntap | grep 80
tcp6 0 0 :::80 :::* LISTEN 7315/httpd //設(shè)置網(wǎng)絡(luò)適配器為僅主機(jī)
[root@localhost ~]# ping 192.168.200.130
PING 192.168.200.130 (192.168.200.130) 56(84) bytes of data.
64 bytes from 192.168.200.130: icmp_seq=1 ttl=64 time=0.532 ms
64 bytes from 192.168.200.130: icmp_seq=2 ttl=64 time=1.01 ms
64 bytes from 192.168.200.130: icmp_seq=3 ttl=64 time=0.940 ms
[root@localhost ~]# showmount -e 192.168.200.130
Export list for 192.168.200.130:
/usr/share *
/opt/benet 192.168.200.0/24
/opt/accp 192.168.200.0/24
[root@localhost ~]# mount.nfs 192.168.200.130:/opt/benet /var/www/html/
[root@localhost ~]# cd /var/www/html/
[root@localhost html]# echo "this is benet web" > index.html
此時回到存儲服務(wù)器CentOS 7-4上看是否有此文件:
[root@localhost ~]# cd /opt/
[root@localhost opt]# ls
accp benet rh
[root@localhost opt]# cd accp/
[root@localhost accp]# ls
index.html
[root@localhost accp]# cat index.html
this is benet web
//此時有我們新建的index.html文件
[root@localhost ~]# cd /etc/sysconfig/network-scripts/
[root@localhost network-scripts]# cp ifcfg-ens33 ifcfg-ens36
[root@localhost network-scripts]# vim ifcfg-ens36
BOOTPROTO="static" //將dhcp改為static
NAME="ens36" //把名稱改為ens36
UUID號刪除
DEVICE="ens36" //把名稱改為ens36
ONBOOT="yes"
IPADDR=12.0.0.1 //在末行下插入:IP,子網(wǎng)
NETMASK=255.255.255.0
//修改完成后輸入:wq保存退出
[root@localhost network-scripts]# vim ifcfg-ens33
BOOTPROTO="static" //將dhcp改為static
DEVICE="ens33"
ONBOOT="yes" //在末行下插入:IP,子網(wǎng)
IPADDR=192.168.200.1
NETMASK=255.255.255.0
//修改完成后輸入:wq保存退出
[root@localhost network-scripts]# service network restart
Restarting network (via systemctl): [ 確定 ]
[root@localhost network-scripts]# vim /etc/sysctl.conf
//在最后一行按o轉(zhuǎn)下行插入
net.ipv4.ip_forward=1
//修改完成后輸入:wq保存退出
[root@localhost network-scripts]# sysctl -p
net.ipv4.ip_forward = 1
[root@localhost network-scripts]# iptables -t nat -F
[root@localhost network-scripts]# iptables -F
[root@localhost network-scripts]# iptables -t nat -A POSTROUTING -o ens36 -s 192.168.200.0/24 -j SNAT --to-source 12.0.0.1
[root@localhost network-scripts]# modprobe ip_vs
[root@localhost network-scripts]# cat /proc/net/ip_vs
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
[root@localhost network-scripts]# ipvsadm --save > /etc/sysconfig/ipvsadm
[root@localhost network-scripts]# systemctl start ipvsadm.service
[root@localhost network-scripts]# cd /opt/
[root@localhost opt]# vim nat.sh
#!/bin/bash
ipvsadm -C //清除內(nèi)核虛擬服務(wù)器表中的所有記錄
ipvsadm -A -t 12.0.0.1:80 -s rr //添加新的虛擬的服務(wù)器
ipvsadm -a -t 12.0.0.1:80 -r 192.168.200.110:80 -m
ipvsadm -a -t 12.0.0.1:80 -r 192.168.200.120:80 -m
ipvsadm
//輸入完成后輸入:wq保存退出
[root@localhost opt]# source nat.sh
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP localhost.localdomain:http rr
-> 129.168.200.110:http Masq 1 0 0
-> 129.168.200.120:http Masq 1 0 0
看了以上關(guān)于LVS負(fù)載均衡群集實(shí)戰(zhàn)詳細(xì)介紹,如果大家還有什么地方需要了解的可以在億速云行業(yè)資訊里查找自己感興趣的或者找我們的專業(yè)技術(shù)工程師解答的,億速云技術(shù)工程師在行業(yè)內(nèi)擁有十幾年的經(jīng)驗(yàn)了。
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