docker-keepalived-k8s/keepalived.template.conf

global_defs {
    vrrp_version 2
    vrrp_garp_master_delay 1
    vrrp_garp_master_refresh 60
    enable_script_security
}

vrrp_script haproxy-check {
    # -0 checks if the process is running
    script "/usr/lib/keepalived/scripts/chk_kube_apiserver.sh 192.168.2.2 6443"
    interval 2
    weight 2
    user keepalived_script
}

vrrp_instance haproxy-virtual-ip {
    state $STATE

#   Make sure the interface is aligned with your server's network interface
    interface $INTERFACE

#   The virtual router ID must be unique to each VRRP instance that you define
    virtual_router_id 55

#   Make sure the priority is higher on the master server than on backup servers
    priority $PRIORITY

#   advertisement interval, 1 second
    advert_int 1
    nopreempt

    authentication {
        auth_type PASS
        auth_pass $PASSWORD
    }

    unicast_src_ip $SRC_IP

    unicast_peer {
        $PEER_IP_0
        $PEER_IP_1
    }

    virtual_ipaddress {
        192.168.2.2/32
    }

    track_script {
        haproxy-check
    }
}