systemvm/debian/opt/cloud/bin/checkrouter.sh

#!/usr/bin/env bash
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STATUS=UNKNOWN

get_guest_nics() {
  python3 -c "
import json
data = json.load(open('/etc/cloudstack/ips.json'))
for nic, objs in data.items():
  if isinstance(objs, list):
      for obj in objs:
          if obj.get('nw_type') == 'guest' and obj.get('add'):
              print(nic)
                    "
}

ROUTER_TYPE=$(cat /etc/cloudstack/cmdline.json | grep type | awk '{print $2;}' | sed -e 's/[,\"]//g')
if [ "$ROUTER_TYPE" = "vpcrouter" ];then
    GUEST_NICS=$(get_guest_nics)
    if [ "$GUEST_NICS" = "" ];then
        echo "Status: ${STATUS}"
        exit
    fi
fi

if [ "$(systemctl is-active keepalived)" != "active" ]
then
    echo "Status: FAULT"
    exit
fi

if [ "$ROUTER_TYPE" = "router" ]
then
	ROUTER_STATE=$(ip -4 addr show dev eth0 | grep inet | wc -l | xargs bash -c  'if [ $0 == 2 ]; then echo "PRIMARY"; else echo "BACKUP"; fi')
	STATUS=$ROUTER_STATE
else
	ROUTER_STATE=$(ip -4 addr show dev eth1 | grep state | awk '{print $9;}')
	if [ "$ROUTER_STATE" = "UP" ]
	then
	    STATUS=PRIMARY
	elif [ "$ROUTER_STATE" = "DOWN" ]
	then
	    STATUS=BACKUP
	fi
fi

echo "Status: ${STATUS}"