keepalived track_script not work

[fanux]

global_defs {
   router_id k8s
}

vrrp_script Checkhaproxy {
    script "/etc/keepalived/check_haproxy.sh"
    interval 3
    weight -25 # priority MASTER(100) - 25 < BACKUP(80)
}

vrrp_instance VI_1 {
    state BACKUP

    interface eth0
    virtual_router_id  100
    priority 80
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass kuburnetes
    }
    virtual_ipaddress {
         10.1.86.209
    }
    track_script {
        Checkhaproxy
    }
}

if [ `curl https://10.1.86.202:6444 --insecure |grep kind |wc -l` -eq 0 ] ; then
   exit 1 # just exit, MASTER will reduce weight(-25), so vip will move on BACKUP node
fi

when script exit1, but MASTER not realse the vip

[fanux]

Keepalived in docker using --dont-fork caused this issue. But if using fork container will exit immediately. So maybe using supervisor in the feature, now just sleep infinity to solve this.

FROM centos:7.4.1708
RUN yum install -y  wget  && yum install -y gcc-c++ openssl-devel openssl && yum install -y net-tools
RUN wget http://www.keepalived.org/software/keepalived-2.0.8.tar.gz && tar zxvf keepalived-2.0.8.tar.gz && cd keepalived-2.0.8 && ./configure && make && make install  
CMD keepalived --all -d -D  -f /etc/keepalived/keepalived.conf --log-console && sleep infinity