replug.py

#!/usr/bin/python
import subprocess
import sys
import json
import pprint
def _exec(cmd):
        print 'exec:', cmd
        return subprocess.check_output(['bash', '-c', cmd])

serv = sys.argv[1]

port_list = _exec("neutron port-list --device-id=%s -q|awk '{print $2}'|grep -v -e '^$'|grep -v id" % serv).split('\n')
print  port_list
for port in port_list:
        if port:
                print "processing port", port
                raw = _exec("(neutron --debug port-show {port} 1>/dev/null) 2>&1| grep RESP|grep {server}".format(port=port, server=serv)).replace("RESP BODY: ", "")
                port_info = json.loads(raw)['port']
                print "old port info"
                pprint.pprint(port_info)
                print _exec('nova interface-detach %s %s' % (serv, port))
                try:
                        _exec('neutron port-delete %s' % port)
                except subprocess.CalledProcessError:
                        pass
                fixeds = port_info['fixed_ips'][0]
                keys = {
                        'subnet': fixeds['subnet_id'],
                        'fixed_ip': fixeds['ip_address'],
                        'tenant': port_info['tenant_id'],
                        'mac': port_info['mac_address'],
                        'net': port_info['network_id']
                }
                try:
                        new_port = _exec("neutron port-create --fixed-ip  subnet_id={subnet},ip_address={fixed_ip}  --tenant_id={tenant} --mac-address  {mac}  {net} --vnic-type normal|grep '| id '".format(**keys) + "|awk '{print $4}'")
                except Exception:
                        new_port = _exec("neutron port-create --fixed-ip  subnet_id={subnet},ip_address={fixed_ip}  --tenant_id={tenant} --mac-address  {mac}  {net} |grep '| id '".format(**keys) + "|awk '{print $4}'")
                print "new port id", new_port
                print _exec('nova interface-attach %s --port-id %s' % (serv, new_port))