#!/bin/bash
# 미래를 위한 투자.. chef-client 에서 안되는 부분
cp /opt/openstack/src/neutron/etc/neutron/rootwrap.d/linuxbridge-plugin.filters /etc/neutron/rootwrap.d/linuxbridge-plugin.filters

source /root/openrc
source /opt/openstack/venv/bin/activate

GATHER_INFORMATION_PREFIX=/tmp/ovstobridge
GATHER_INFORMATION=$GATHER_INFORMATION_PREFIX-if
DHCP_GATHER_INFORMATION=$GATHER_INFORMATION_PREFIX-dhcp

echo '' > $GATHER_INFORMATION
echo '' > $DHCP_GATHER_INFORMATION

# local 자원 수집
while read -r _ ID _ IP _ ; do
        IP=$(echo $IP | cut -d'=' -f2)
        NET_ID=$(neutron port-list --fixed-ips ip_address=$IP -c network_id | sed '2d' | grep '|' | cut -d' ' -f2)
        PORT_ID=$(neutron port-list --fixed-ips ip_address=$IP -c id | sed '2d' | grep '|' | cut -d' ' -f2)
        NET_ID_PREFIX=${NET_ID:0:11}
        PORT_ID_PREFIX=${PORT_ID:0:11}
        VLAN=$(neutron net-show $NET_ID -c provider:segmentation_id | sed '2d' | grep '|' | cut -d' ' -f4)
        echo $VLAN $NET_ID_PREFIX $PORT_ID_PREFIX >> $GATHER_INFORMATION
done< <(nova list --all-tenants --fields Networks --host $HOSTNAME | sed '2d' | grep '|')

# dhcp 자원 수집
while read -r DHCP_PORT_ID ; do
        DHCP_NET_ID=$(neutron port-show $DHCP_PORT_ID -F network_id | sed '2d' | grep '|' | cut -d' ' -f4)
        DHCP_NET_ID_PREFIX=${DHCP_NET_ID:0:11}
        DHCP_PORT_ID_PREFIX=${DHCP_PORT_ID:0:11}
        DHCP_VLAN=$(neutron net-show $DHCP_NET_ID -c provider:segmentation_id | sed '2d' | grep '|' | cut -d' ' -f4)
        echo $DHCP_VLAN $DHCP_NET_ID_PREFIX $DHCP_PORT_ID_PREFIX >> $DHCP_GATHER_INFORMATION
done< <(neutron port-list --device-owner=network:dhcp --binding:host_id $HOSTNAME | sed '2d' | grep '|' | cut -d' ' -f2)

# bridge 와 vlan 인터페이스 생성
while read -r VLAN NET_ID_PREFIX; do
        if [ "x$VLAN" == "x" ] ; then continue; fi
        brctl addbr brq${NET_ID_PREFIX}
        brctl setfd brq${NET_ID_PREFIX} '0'
        brctl stp brq${NET_ID_PREFIX} off
        ip link set brq${NET_ID_PREFIX} up

        ip link add link eth1 name eth1.$VLAN type vlan id $VLAN
        ip link set eth1.$VLAN up
        brctl addif brq${NET_ID_PREFIX} eth1.$VLAN
done< <(cat $GATHER_INFORMATION_PREFIX-* | cut -d' ' -f-2 | sort | uniq)

# vm vif 옮기기
while read -r VLAN NET_ID_PREFIX PORT_ID_PREFIX; do
        if [ "x$VLAN" == "x" ] ; then continue; fi
        brctl delif qbr${PORT_ID_PREFIX} tap${PORT_ID_PREFIX}
        brctl addif brq${NET_ID_PREFIX} tap${PORT_ID_PREFIX}
done< <(cat $GATHER_INFORMATION)

# dhcp 옮기기
while read -r DHCP_VLAN DHCP_NET_ID_PREFIX DHCP_PORT_ID_PREFIX; do
        if [ "x$DHCP_VLAN" == "x" ] ; then continue; fi
        ovs-vsctl del-port br-int tap$DHCP_PORT_ID_PREFIX
        brctl addif brq${DHCP_NET_ID_PREFIX} tap${DHCP_PORT_ID_PREFIX}
done< <(cat $DHCP_GATHER_INFORMATION)