ansible/library/cloud/quantum_network
2013-06-01 11:57:53 -04:00

266 lines
9.7 KiB
Python

#!/usr/bin/python
#coding: utf-8 -*-
# (c) 2013, Benno Joy <benno@ansibleworks.com>
#
# This module is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this software. If not, see <http://www.gnu.org/licenses/>.
try:
from quantumclient.quantum import client
from keystoneclient.v2_0 import client as ksclient
except ImportError:
print("failed=True msg='quantunclient and keystone client are required'")
DOCUMENTATION = '''
---
module: quantum_network
short_description: Creates/Removes networks from OpenStack
description:
- Add or Remove network from OpenStack.
options:
login_username:
description:
- login username to authenticate to keystone
required: true
default: admin
login_password:
description:
- Password of login user
required: true
default: 'yes'
login_tenant_name:
description:
- The tenant name of the login user
required: true
default: 'yes'
auth_url:
description:
- The keystone url for authentication
required: false
default: 'http://127.0.0.1:35357/v2.0/'
region_name:
description:
- Name of the region
required: false
default: None
state:
description:
- Indicate desired state of the resource
choices: ['present', 'absent']
default: present
name:
description:
- Name to be assigned to the nework
required: true
default: None
network_type:
description:
- The type of the network to be created, gre, vlan, local.
required: false
default: local
provider_physical_network:
description:
- The physical network which would realize the virtual network for flat and vlan networks.
required: false
default: None
provider_segmentation_id:
description:
- The id that has to be assigned to the network, in case of vlan networks that would be vlan id and for gre the tunnel id
required: false
default: None
router_external:
description:
- If 'yes', specifies that the virtual network is a external network (public).
required: false
default: false
shared:
description:
- Wether this network is shared or not
required: false
default: false
admin_state_up:
description:
- Wether the state should be marked as up or down
required: false
default: true
examples:
- code: "quantum_network: state=present login_username=admin login_password=admin
provider_network_type=gre login_tenant_name=admin
provider_segmentation_id=1 tenant_name=tenant1 name=t1network"
description: "Createss a GRE nework with tunnel id of 1 for tenant 1"
- code: "quantum_network: state=present login_username=admin login_password=admin
provider_network_type=local login_tenant_name=admin
provider_segmentation_id=1 router_external=yes name=external_network"
description: "Creates an external,public network"
requirements: ["quantumclient", "keystoneclient"]
'''
_os_keystone = None
_os_tenant_id = None
def _get_ksclient(module, kwargs):
try:
kclient = ksclient.Client(username=kwargs.get('login_username'),
password=kwargs.get('login_password'),
tenant_name=kwargs.get('login_tenant_name'),
auth_url=kwargs.get('auth_url'))
except Exception as e:
module.fail_json(msg = "Error authenticating to the keystone: %s" %e.message)
global _os_keystone
_os_keystone = kclient
return kclient
def _get_endpoint(module, ksclient):
try:
endpoint = ksclient.service_catalog.url_for(service_type='network', endpoint_type='publicURL')
except Exception as e:
module.fail_json(msg = "Error getting endpoint for glance: %s " %e.message)
return endpoint
def _get_quantum_client(module, kwargs):
_ksclient = _get_ksclient(module, kwargs)
token = _ksclient.auth_token
endpoint = _get_endpoint(module, _ksclient)
kwargs = {
'token': token,
'endpoint_url': endpoint
}
try:
quantum = client.Client('2.0', **kwargs)
except Exception as e:
module.fail_json(msg = " Error in connecting to quantum: %s " %e.message)
return quantum
def _set_tenant_id(module):
global _os_tenant_id
if not module.params['tenant_name']:
tenant_name = module.params['login_tenant_name']
else:
tenant_name = module.params['tenant_name']
for tenant in _os_keystone.tenants.list():
if tenant.name == tenant_name:
_os_tenant_id = tenant.id
break
if not _os_tenant_id:
module.fail_json(msg = "The tenant id cannot be found, please check the paramters")
def _get_net_id(quantum, module):
kwargs = {
'tenant_id': _os_tenant_id,
'name': module.params['name'],
}
try:
networks = quantum.list_networks(**kwargs)
except Exception as e:
module.fail_json("Error in listing quantum networks: %s" % e.message)
if not networks['networks']:
return None
return networks['networks'][0]['id']
def _create_network(module, quantum):
quantum.format = 'json'
network = {
'name': module.params.get('name'),
'tenant_id': _os_tenant_id,
'provider:network_type': module.params.get('provider_network_type'),
'provider:physical_network': module.params.get('provider_physical_network'),
'provider:segmentation_id': module.params.get('provider_segmentation_id'),
'router:external': module.params.get('router_external'),
'shared': module.params.get('shared'),
'admin_state_up': module.params.get('admin_state_up'),
}
if module.params['provider_network_type'] == 'local':
network.pop('provider:physical_network', None)
network.pop('provider:segmentation_id', None)
if module.params['provider_network_type'] == 'flat':
network.pop('provider:segmentation_id', None)
if module.params['provider_network_type'] == 'gre':
network.pop('provider:physical_network', None)
try:
net = quantum.create_network({'network':network})
except Exception as e:
module.fail_json(msg = "Error in creating network: %s" % e.message)
return net['network']['id']
def _delete_network(module, net_id, quantum):
try:
id = quantum.delete_network(net_id)
except Exception as e:
module.fail_json(msg = "Error in deleting the network: %s" % e.message)
return True
def main():
module = AnsibleModule(
argument_spec = dict(
login_username = dict(default='admin'),
login_password = dict(required=True),
login_tenant_name = dict(required='True'),
auth_url = dict(default='http://127.0.0.1:35357/v2.0/'),
region_name = dict(default=None),
name = dict(required=True),
tenant_name = dict(default=None),
provider_network_type = dict(default='local', choices=['local', 'vlan', 'flat', 'gre']),
provider_physical_network = dict(default=None),
provider_segmentation_id = dict(default=None),
router_external = dict(default=False, type='bool'),
shared = dict(default=False, type='bool'),
admin_state_up = dict(default=True, type='bool'),
state = dict(default='present', choices=['absent', 'present'])
),
)
if module.params['provider_network_type'] in ['vlan' , 'flat']:
if not module.params['provider_physical_network']:
module.fail_json(msg = " for vlan and flat networks, variable provider_physical_network should be set.")
if module.params['provider_network_type'] in ['vlan', 'gre']:
if not module.params['provider_segmentation_id']:
module.fail_json(msg = " for vlan & gre networks, variable provider_segmentation_id should be set.")
quantum = _get_quantum_client(module, module.params)
_set_tenant_id(module)
if module.params['state'] == 'present':
network_id = _get_net_id(quantum, module)
if not network_id:
network_id = _create_network(module, quantum)
module.exit_json(changed = True, result = "Created", id = network_id)
else:
module.exit_json(changed = False, result = "Success", id = network_id)
if module.params['state'] == 'absent':
network_id = _get_net_id(quantum, module)
if not network_id:
module.exit_json(changed = False, result = "Success")
else:
_delete_network(module, network_id, quantum)
module.exit_json(changed = True, result = "Deleted")
# this is magic, see lib/ansible/module.params['common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()