haproxy+keepalived

global_defs {
    router_id LVS_DEVEL
}
vrrp_script chk_haproxy {
    script "killall -0 haproxy"
    interval 1
    weight -2
}
vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 876543
    }
    virtual_ipaddress {
        10.99.0.189
    }
    track_interface {
        eth0
    }
    track_script {
        chk_haproxy
    }
}

　　

global_defs {
    router_id LVS_DEVEL
}
vrrp_script chk_haproxy {
    script "killall -0 haproxy"
    interval 1
    weight -2
}
vrrp_instance VI_1 {
    state BACKUP
    interface eth0
    virtual_router_id 51
    priority 99
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 876543
    }
    virtual_ipaddress {
        10.99.0.189
    }
    track_interface {
        eth0
    }
    track_script {
        chk_haproxy
    }
}

　　

global
    daemon
    maxconn 256

defaults
    mode http
    timeout connect 5000ms
    timeout client 50000ms
    timeout server 50000ms

#管控项目前后端配置------------------------------------------------------------
listen SGGK-APP 0.0.0.0:9030
    balance   roundrobin
    stats     refresh 2
    option    httpchk GET /CslaWsHttpPortal
    server    APP160 10.99.0.160:8030 check
    server    APP161 10.99.0.161:8030 check
    server    APP181 10.99.0.181:8030 check
#------------------------------------------------------------

#铁区MES前后端配置------------------------------------------------------------
listen TQMES-APP 0.0.0.0:9130
    stats     refresh   2
    balance   roundrobin
    option    httpchk GET /CslaWsHttpPortal
    server    APP170 10.99.0.170:8030 check
    server    APP180 10.99.0.180:8030 check
#------------------------------------------------------------

#状态监控画面（访问http://host:1936即可）------------------------------------------------------------
listen stats *:1936
    stats enable
    stats uri /
    stats hide-version