150 lines
5.4 KiB
Python
Executable File
150 lines
5.4 KiB
Python
Executable File
#!/usr/bin/python
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try:
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from quantumclient.v2_0 import client
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except ImportError:
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from neutronclient.v2_0 import client
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from keystoneclient.v2_0 import client as ks_client
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import optparse
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import os
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import sys
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import logging
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usage = """Usage: %prog [options] name cidr
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For example:
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%prog -t admin -r provider-router admin_net 10.5.5.0/24
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will create a new network for the admin tenant called 'admin_net' with a
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default gateway of 10.5.5.1 and a dhcp allocation range of
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10.5.5.2->10.5.5.254
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"""
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if __name__ == '__main__':
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parser = optparse.OptionParser(usage)
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parser.add_option('-t', '--tenant',
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help='Tenant name to create network for',
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dest='tenant', action='store',
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default=None)
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parser.add_option('-s', '--shared',
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help='Create a shared rather than private network',
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dest='shared', action='store_true', default=False)
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parser.add_option('-r', '--router',
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help='Router to plug new network into',
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dest='router', action='store', default=None)
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parser.add_option("-d", "--debug",
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help="Enable debug logging",
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dest="debug", action="store_true", default=False)
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parser.add_option("-D", "--disable-dhcp",
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help="Disable dhcp on network",
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dest="dhcp", action="store_false", default=True)
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parser.add_option("-N", "--dns-nameservers",
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help="Comma separated list of dns servers to use.",
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dest="dns_servers", action="store", default=None)
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(opts, args) = parser.parse_args()
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if len(args) != 2:
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parser.print_help()
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sys.exit(1)
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if opts.debug:
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logging.basicConfig(level=logging.DEBUG)
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else:
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logging.basicConfig(level=logging.INFO)
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net_name = args[0]
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subnet_name = "{}_subnet".format(net_name)
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cidr = args[1]
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keystone = ks_client.Client(username=os.environ['OS_USERNAME'],
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password=os.environ['OS_PASSWORD'],
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tenant_name=os.environ['OS_TENANT_NAME'],
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auth_url=os.environ['OS_AUTH_URL'],
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region_name=os.environ['OS_REGION_NAME'])
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quantum = client.Client(username=os.environ['OS_USERNAME'],
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password=os.environ['OS_PASSWORD'],
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tenant_name=os.environ['OS_TENANT_NAME'],
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auth_url=os.environ['OS_AUTH_URL'],
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region_name=os.environ['OS_REGION_NAME'])
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# Resolve tenant id
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tenant_id = None
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for tenant in [t._info for t in keystone.tenants.list()]:
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if (tenant['name'] ==
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(opts.tenant or os.environ['OS_TENANT_NAME'])):
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tenant_id = tenant['id']
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break # Tenant ID found - stop looking
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if not tenant_id:
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logging.error("Unable to locate tenant id for %s.", opts.tenant)
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sys.exit(1)
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# Create network
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networks = quantum.list_networks(name=net_name)
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if len(networks['networks']) == 0:
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logging.info('Creating network: %s',
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net_name)
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network_msg = {
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'network': {
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'name': net_name,
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'shared': opts.shared,
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'tenant_id': tenant_id
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}
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}
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network = quantum.create_network(network_msg)['network']
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else:
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logging.warning('Network %s already exists.', net_name)
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network = networks['networks'][0]
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# Create subnet
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subnets = quantum.list_subnets(name=subnet_name)
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if len(subnets['subnets']) == 0:
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logging.info('Creating subnet for %s',
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net_name)
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subnet_msg = {
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'subnet': {
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'name': subnet_name,
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'network_id': network['id'],
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'enable_dhcp': opts.dhcp,
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'cidr': cidr,
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'ip_version': 4,
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'tenant_id': tenant_id
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}
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}
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subnet = quantum.create_subnet(subnet_msg)['subnet']
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else:
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logging.warning('Subnet %s already exists.', subnet_name)
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subnet = subnets['subnets'][0]
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# Update dns_nameservers
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if opts.dns_servers:
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msg = {
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'subnet': {
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'dns_nameservers': opts.dns_servers.split(',')
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}
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}
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logging.info('Updating dns_nameservers (%s) for subnet %s',
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opts.dns_servers,
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subnet_name)
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quantum.update_subnet(subnet['id'], msg)
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# Plug subnet into router if provided
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if opts.router:
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routers = quantum.list_routers(name=opts.router)
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if len(routers['routers']) == 0:
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logging.error('Unable to locate provider router %s', opts.router)
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sys.exit(1)
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else:
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# Check to see if subnet already plugged into router
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ports = quantum.list_ports(device_owner='network:router_interface',
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network_id=network['id'])
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if len(ports['ports']) == 0:
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logging.info('Adding interface from %s to %s',
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opts.router, subnet_name)
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router = routers['routers'][0]
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quantum.add_interface_router(router['id'],
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{'subnet_id': subnet['id']})
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else:
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logging.warning('Router already connected to subnet')
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