centos7中如何安装配置keepalived-创新互联
centos7系统中如何安装配置keepalived?相信大部分人都还没学会这个技能,为了让大家学会,给大家总结了以下内容,话不多说,一起往下看吧。
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系统版本 | nginx版本 | keepalived版本 | ip | 作用 |
---|---|---|---|---|
CentOS Linux release 7.5.1804 (Core) | nginx/1.16.1 | keepalived-2.0.18 | 10.1.1.31 | master |
CentOS Linux release 7.5.1804 (Core) | nginx/1.16.1 | keepalived-2.0.18 | 10.1.1.32 | slave |
VIP 10.1.1.111
二、安裝nginx
安裝nignx
yum install nginx -y
修改nginx配置文件
master
echo 'this is master 31' > /usr/share/nginx/html/index.html
slave
echo 'this is slave 32' > /usr/share/nginx/html/index.html
启动nginx
systemctl start nginx
测试nginx启动
curl localhost this is master
三、安装keepalived
1、 创建依赖环境
yum -y install openssl-devel gcc gcc-c++
mkdir /etc/keepalived
wget https://www.keepalived.org/software/keepalived-2.0.18.tar.gz
2、安装keepalived
tar -zxvf keepalived-2.0.18.tar.gz
mv keepalived-2.0.18 /usr/local/keepalived
cd /usr/local/keepalived
./configure && make && make install
3、创建启动文件
cp -a /usr/local/etc/keepalived /etc/init.d/
cp -a /usr/local/etc/sysconfig/keepalived /etc/sysconfig/
cp -a /usr/local/sbin/keepalived /usr/sbin/
4、创建配置文件
master
cat > /etc/keepalived/keepalived.conf << EOF ! Configuration File for keepalived global_defs { router_id 31 } vrrp_instance VI_1 { state MASTER interface ens33 virtual_router_id 3 mcast_src_ip 10.1.1.132 priority 200 advert_int 1 authentication { auth_type PASS auth_pass 123456 } virtual_ipaddress { 10.1.1.111/24 } } EOF
slave
cat > /etc/keepalived/keepalived.conf << EOF ! Configuration File for keepalived global_defs { router_id 32 } vrrp_instance VI_1 { state BACKUP interface ens33 virtual_router_id 3 mcast_src_ip 10.1.1.132 priority 90 advert_int 1 authentication { auth_type PASS auth_pass 123456 } virtual_ipaddress { 10.1.1.111/24 } } EOF
5、启动keepalived
systemctl start keepalived
systemctl enable keepalived
四、测试
1、在两台服务器上测试
master
$ curl localhost this is master root@centos7[14:46:07]:~ $ curl 10.1.1.111 this is master root@centos7[15:03:29]:~
slave
$ curl localhost this is slave root@centos7[15:03:59]:/etc/keepalived $ curl 10.1.1.111 this is master
2、关闭master的keepalived模仿down机
master关闭keepalived
$ systemctl stop keepalived
- 在slave上面进行测试
$ curl localhost
this is slave
root@centos7[15:10:29]:/etc/keepalived
$ curl 10.1.1.111
this is slave
keepalived完成
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