#!/usr/bin/env python

import os
import sys
import time

from novaclient import client


if not sys.argv[4:]:
    print >> sys.stderr, 'Usage: %s <image_id> <flavor_id> <network_id> <floating_ip_pool>' % sys.argv[0]
    sys.exit(1)


nova = client.Client(
    '1.1',
    username=os.getenv('OS_USERNAME'),
    api_key=os.getenv('OS_PASSWORD'),
    project_id=os.getenv('OS_TENANT_NAME'),
    auth_url=os.getenv('OS_AUTH_URL')
)
print 'Created client...'

ip = nova.floating_ips.create(sys.argv[4])
print 'Created floating ip: %s' % ip.id

instance = nova.servers.create(
     name='demo',
     image=sys.argv[1],
     flavor=sys.argv[2],
     nics=[{"net-id": sys.argv[3]}]
)
print 'Created instance: %s - %s' % (instance.id, instance.name)

while instance.status.upper() not in ('ACTIVE', 'ERROR'):
    print 'waiting for instance to boot...'
    time.sleep(5)
    instance = nova.servers.get(instance.id)

instance.add_floating_ip(ip)
print 'Added floating ip...'

assert nova.floating_ips.findall(instance_id=instance.id), 'No floating IPs for instance %s found' % instance.id