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community.general/library/cloud/quantum_floating_ip
bennojoy b16e2a1d48 OpenStack Modules
2013-05-23 07:55:05 +05:30

233 lines
8.3 KiB
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 novaclient.v1_1 import client as nova_client
from quantumclient.quantum import client
from keystoneclient.v2_0 import client as ksclient
import time
except ImportError:
print("failed=True msg='glanceclient,keystoneclient and quantumclient 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 from which ip has to be assigned to vm. Please make sure the network is an external network
required: true
default: None
instance_name:
description:
- The name of the instance to which the ip address should be assigned
required: true
default: None
examples:
- code: "quantum_floating_ip: state=present login_username=admin login_password=admin login_tenant_name=admin
network_name=external_network instance_name=vm1"
description: "Assigns a floating ip to the instance from an external network"
requirements: ["novaclient", "quantumclient", "keystoneclient"]
'''
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 _get_server_state(module, nova):
server_info = None
server = None
try:
for server in nova.servers.list():
if server:
info = server._info
if info['name'] == module.params['instance_name']:
if info['status'] != 'ACTIVE' and module.params['state'] == 'present':
module.fail_json( msg="The VM is available but not Active. state:" + info['status'])
server_info = info
break
except Exception as e:
module.fail_json(msg = "Error in getting the server list: %s" % e.message)
return server_info, server
def _get_port_info(quantum, module, instance_id):
kwargs = {
'device_id': instance_id,
}
try:
ports = quantum.list_ports(**kwargs)
except Exception as e:
module.fail_json( msg = "Error in listing ports: %s" % e.message)
if not ports['ports']:
return None, None
return ports['ports'][0]['fixed_ips'][0]['ip_address'], ports['ports'][0]['id']
def _get_floating_ip(module, quantum, fixed_ip_address):
kwargs = {
'fixed_ip_address': fixed_ip_address
}
try:
ips = quantum.list_floatingips(**kwargs)
except Exception as e:
module.fail_json(msg = "error in fetching the floatingips's %s" % e.message)
if not ips['floatingips']:
return None, None
return ips['floatingips'][0]['id'], ips['floatingips'][0]['floating_ip_address']
def _create_floating_ip(quantum, module, port_id, net_id):
kwargs = {
'port_id': port_id,
'floating_network_id': net_id
}
try:
result = quantum.create_floatingip({'floatingip': kwargs})
except Exception as e:
module.fail_json( msg = "There was an error in updating the floating ip address: %s" % e.message)
module.exit_json( changed = True, result = result, public_ip=result['floatingip']['floating_ip_address'] )
def _get_net_id(quantum, module):
kwargs = {
'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 _update_floating_ip(quantum, module, port_id, floating_ip_id):
kwargs = {
'port_id': port_id
}
try:
result = quantum.update_floatingip(floating_ip_id, {'floatingip': kwargs})
except Exception as e:
module.fail_json( msg = "There was an error in updating the floating ip address: %s" % e.message)
module.exit_json( changed = True, result = result)
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),
network_name = dict(required=True),
instance_name = dict(required=True),
state = dict(default='present', choices=['absent', 'present'])
),
)
try:
nova = nova_client.Client(module.params['login_username'], module.params['login_password'],
module.params['login_tenant_name'], module.params['auth_url'], service_type='compute')
quantum = _get_quantum_client(module, module.params)
except Exception as e:
module.fail_json( msg = " Error in authenticating to nova: %s" % e.message)
server_info, server_obj = _get_server_state(module, nova)
if not server_info:
module.fail_json( msg = " The instance name provided cannot be found")
fixed_ip, port_id = _get_port_info(quantum, module, server_info['id'])
if not port_id:
module.fail_json(msg = "Cannot find a port for this instance, maybe fixed ip is not assigned")
floating_id, floating_ip = _get_floating_ip(module, quantum, fixed_ip)
if module.params['state'] == 'present':
if floating_ip:
module.exit_json(changed = False, public_ip=floating_ip)
net_id = _get_net_id(quantum, module)
if not net_id:
module.fail_json(msg = "cannot find the network specified, please check")
_create_floating_ip(quantum, module, port_id, net_id)
if module.params['state'] == 'absent':
if floating_ip:
_update_floating_ip(quantum, module, None, floating_id)
module.exit_json(changed=False)
# this is magic, see lib/ansible/module.params['common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()
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