#!/bin/bash

echo ""
echo "... ] INSTALLING KUBE-API KEEPALIVED [ ..."

HOME=$( cd "$(dirname "$0")" && pwd )
source $HOME/../config

#installing keepalived
apt-get update -q
apt-get install -y keepalived

systemctl stop keepalived.service

#install keepalived
cat <<EOF > /etc/keepalived/keepalived.conf
! Configuration File for keepalived

global_defs {
   notification_email {
     root@localhost
   }
   notification_email_from vrrp@${NODE_NAME}
   smtp_server localhost
   smtp_connect_timeout 30
}

vrrp_script haproxy-check {
    script "/usr/bin/killall -0 haproxy"
    interval 2
    weight 20
}

vrrp_instance haproxy-vip {
    interface ${NODE_INTERFACE}  #interconnect
    state BACKUP
    priority 101
    virtual_router_id 51
    nopreempt
    advert_int 3

    authentication {
        auth_type PASS
        auth_pass ${HAPROXY_VRRP_AUTH}
    }

    virtual_ipaddress {
        ${MASTER_LB_IP}/${MASTER_LB_MASK} dev ${NODE_INTERFACE}
    }

    track_script {
        haproxy-check weight 20
    }
}
EOF

systemctl daemon-reload
systemctl enable keepalived.service
systemctl start keepalived.service