delete-network

#!/bin/bash

# VARs
TENANT_NAME=""
ROUTER_ID=""
ROUTER_NAME="ext-to-int"
PORT_ID=""
NET_ID=""
NETWORK_NAME=""
NETWORK_NAME_CHECK=""
NETWORK_NAME_GUESS=""
NETWORK_NUMBERS=""
SUBNET_ID=""
SUBNET_NAME=""
#SUBNET_NAME_CHECK=""

# GET tenant name
if [ "$1" != "" ]
then
	TENANT_NAME="$1"
else
	# ask tenant name
	echo "enter tenant name"
	read -r TENANT_NAME
fi

# CONVERT tenant to lowercase	
TENANT_NAME_LOWERCASE=${TENANT_NAME,,}

# CHECK network name

	# get network name
        NETWORK_NAME_CHECK=$(neutron net-list | grep -i "${TENANT_NAME_LOWERCASE}" | awk '{print $4}')

	# guess network name
	NETWORK_NAME_GUESS="${TENANT_NAME_LOWERCASE}-net"

	# save network name
	if [ "${NETWORK_NAME_CHECK}" == "${NETWORK_NAME_GUESS}" ]; then

		NETWORK_NAME="${NETWORK_NAME_CHECK}"
		echo "checking network name"
		echo "${NETWORK_NAME}"
	else
		NETWORK_NAME="${NETWORK_NAME_GUESS}"
	fi

# CHECK subnet name

	echo "check subnet name"
	SUBNET_NAME="${TENANT_NAME_LOWERCASE}-pool"
	echo "${SUBNET_NAME}"

# GET router id
	
	ROUTER_ID=$(neutron router-list | grep ext-to-int | awk '{print $2}')
	echo "router_id = ${ROUTER_ID}"

# GET NETWORK_NUMBERS
NETWORK_NUMBERS=$(neutron net-list | grep -i "${TENANT_NAME_LOWERCASE}" | awk '{print $7}')

# GET port id
	
	PORT_ID=$(neutron router-port-list "${ROUTER_ID}" | grep "${NETWORK_NUMBERS}" | awk '{print $2}')
	echo "port_id = $PORT_ID"

# GET net id
	
	NET_ID=$(neutron net-list | grep "${NETWORK_NAME}" | awk '{print $2}')
	echo "${NET_ID}"

# GET subnet id

	SUBNET_ID=$(neutron subnet-list | grep "${SUBNET_NAME}" | awk '{print $2}')

# CONFIRM delete

	echo "TENANT: $TENANT_NAME"
	echo "Network: $NETWORK_NAME $NETWORK_NUMBERS $NET_ID"
	echo "Subnet: $SUBNET_NAME $SUBNET_ID"
	echo "Router: $ROUTER_NAME $ROUTER_ID"

	echo "delete net, subnet and router interface $NETWORK_NAME (yes/no)"
	read -r ANSWER

# DELETE it

	if [ "$ANSWER" == "yes" ]; then

		# DELETE interface
		echo "neutron router-interface-delete $ROUTER_ID $SUBNET_ID"
		neutron router-interface-delete "${ROUTER_ID}" "${SUBNET_ID}"

		# DELETE PORTS
                SUBNET_PORTS=$(neutron port-list | grep "${SUBNET_ID}" | awk '{print $2}')
		for i in ${SUBNET_PORTS}
                do 
                    neutron port-delete "$i"
                done

		# DELETE subnet
		echo "neutron subnet-delete ${SUBNET_ID}"
		neutron subnet-delete "${SUBNET_ID}"

		# DELETE net
		echo "neutron net-delete ${NET_ID}"
		neutron net-delete "${NET_ID}"
	fi