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ansible/library/cloud/quantum_subnet
bennojoy b16e2a1d48 OpenStack Modules
2013-05-23 07:55:05 +05:30

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Python
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#!/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='quantum and keystone client are required'")
DOCUMENTATION = '''
---
module: quantum_floating_ip
short_description: Add/Remove floating ip from an instance
description:
- Add or Remove a floating ip to an instance
options:
login_username:
description:
- login username to authenticate to keystone
required: true
default: admin
login_password:
description:
- Password of login user
required: true
default: True
login_tenant_name:
description:
- The tenant name of the login user
required: true
default: True
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
network_name:
description:
- Name of the nework to which the subnet should be attached
required: true
default: None
cidr:
description:
- The cidr representation of the subnet that should be assigned to the subnet
required: true
default: None
tenant_name:
description:
- The name of the tenant for whom the subnet should be created
required: false
default: None
ip_version:
description:
- The IP version of the subnet 4 or 6
required: false
default: 4
enable_dhcp:
description:
- Wether DHCP should be enabled for this subnet.
required: false
default: true
gateway_ip:
description:
- The ip that would be assigned to the gateway for this subnet
required: false
default: None
allocation_pool_start:
description:
- From the subnet pool the starting address from which the ip should be allocated
required: false
default: None
allocation_pool_end:
description:
- From the subnet pool the last ip that should be assigned to the virtual machines
required: false
default: None
examples:
- code: "quantum_subnet: state=present login_username=admin login_password=admin login_tenant_name=admin tenant_name=tenant1
network_name=network1 name=net1subnet cidr=192.168.0.0/24"
description: "Create a subnet for a tenant with the specified subnet"
requirements: ["quantum", "keystoneclient"]
'''
_os_keystone = None
_os_tenant_id = None
_os_network_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['network_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 _get_subnet_id(module, quantum):
global _os_network_id
subnet_id = None
_os_network_id = _get_net_id(quantum, module)
if not _os_network_id:
module.fail_json(msg = "network id of network not found.")
else:
kwargs = {
'tenant_id': _os_tenant_id,
'name': module.params['name'],
}
try:
subnets = quantum.list_subnets(**kwargs)
except Exception as e:
module.fail_json( msg = " Error in getting the subnet list:%s " % e.message)
if not subnets['subnets']:
return None
return subnets['subnets'][0]['id']
def _create_subnet(module, quantum):
quantum.format = 'json'
subnet = {
'name': module.params['name'],
'ip_version': module.params['ip_version'],
'enable_dhcp': module.params['enable_dhcp'],
'tenant_id': _os_tenant_id,
'gateway_ip': module.params['gateway_ip'],
'network_id': _os_network_id,
'cidr': module.params['cidr'],
}
if module.params['allocation_pool_start'] and module.params['allocation_pool_end']:
allocation_pools = [
{'start': module.params['allocation_pool_start'],
'end': module.params['allocation_pool_end']}
]
subnet.update({'allocation_pools': allocation_pools})
if not module.params['gateway_ip']:
subnet.pop('gateway_ip')
try:
new_subnet = quantum.create_subnet({'subnet': subnet })
except Exception as e:
module.fail_json( msg = "Failure in creating subnet: %s" %e.message)
return new_subnet['subnet']['id']
def _delete_subnet(module, quantum, subnet_id):
try:
quantum.delete_subnet(subnet_id)
except Exception as e:
module.fail_json( msg = "Error in deleting subnet: %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),
network_name = dict(required=True),
cidr = dict(required=True),
tenant_name = dict(default=None),
state = dict(default='present', choices=['absent', 'present']),
ip_version = dict(default='4', choices=['4', '6']),
enable_dhcp = dict(default='true', choices=BOOLEANS),
gateway_ip = dict(default=None),
allocation_pool_start = dict(default=None),
allocation_pool_end = dict(default=None),
),
)
quantum = _get_quantum_client(module, module.params)
_set_tenant_id(module)
if module.params['state'] == 'present':
subnet_id = _get_subnet_id(module, quantum)
if not subnet_id:
subnet_id = _create_subnet(module, quantum)
module.exit_json(changed = True, result = "Created" , id = subnet_id)
else:
module.exit_json(changed = False, result = "success" , id = subnet_id)
else:
subnet_id = _get_subnet_id(module, quantum)
if not subnet_id:
module.exit_json(changed = False, result = "success" )
else:
_delete_subnet(module, quantum, subnet_id)
module.exit_json(changed = True, result = "deleted" )
# this is magic, see lib/ansible/module.params['common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()
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