docker设计高可用

配置keepalived

安装

[root@apache ~]# yum install haproxy -y

修改配置文件

[root@apache ~]# vim /etc/keepalived/keepalived.conf 
! Configuration File for keepalived

global_defs {
   notification_email {
     acassen@firewall.loc
     failover@firewall.loc
     sysadmin@firewall.loc
   }
   notification_email_from Alexandre.Cassen@firewall.loc
   smtp_server 192.168.200.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
   vrrp_skip_check_adv_addr
   vrrp_strict
   vrrp_garp_interval 0
   vrrp_gna_interval 0
}

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 1
    priority 100
    advert_int 1
    unicast_src_ip 10.0.0.30
    unicast_peer {
        10.0.0.20
    }

    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        10.0.0.99/24 dev eth0 label eth0:111
    }
}

第二台启动

[root@mysql nginx]# cat /etc/keepalived/keepalived.conf 
vrrp_instance VI_1 {
    state