ansible/cloud/openstack/quantum_floating_ip.py

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#!/usr/bin/python
#coding: utf-8 -*-
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# (c) 2013, Benno Joy <benno@ansible.com>
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#
# 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
try:
from neutronclient.neutron import client
except ImportError:
from quantumclient.quantum import client
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from keystoneclient.v2_0 import client as ksclient
import time
except ImportError:
print("failed=True msg='novaclient,keystoneclient and quantumclient (or neutronclient) are required'")
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DOCUMENTATION = '''
---
module: quantum_floating_ip
version_added: "1.2"
short_description: Add/Remove floating IP from an instance
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description:
- Add or Remove a floating IP to an instance
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options:
login_username:
description:
- login username to authenticate to keystone
required: true
default: admin
login_password:
description:
- Password of login user
required: true
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default: 'yes'
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login_tenant_name:
description:
- The tenant name of the login user
required: true
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default: 'yes'
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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 network from which IP has to be assigned to VM. Please make sure the network is an external network
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required: true
default: None
instance_name:
description:
- The name of the instance to which the IP address should be assigned
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required: true
default: None
internal_network_name:
description:
- The name of the network of the port to associate with the floating ip. Necessary when VM multiple networks.
required: false
default: None
version_added: "1.5"
requirements: ["novaclient", "quantumclient", "neutronclient", "keystoneclient"]
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'''
EXAMPLES = '''
# Assign a floating ip to the instance from an external network
- quantum_floating_ip: state=present login_username=admin login_password=admin
login_tenant_name=admin network_name=external_network
instance_name=vm1 internal_network_name=internal_network
'''
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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'),
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auth_url=kwargs.get('auth_url'),
region_name=kwargs.get('region_name'))
except Exception, e:
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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, e:
module.fail_json(msg = "Error getting network endpoint: %s" % e.message)
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return endpoint
def _get_neutron_client(module, kwargs):
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_ksclient = _get_ksclient(module, kwargs)
token = _ksclient.auth_token
endpoint = _get_endpoint(module, _ksclient)
kwargs = {
'token': token,
'endpoint_url': endpoint
}
try:
neutron = client.Client('2.0', **kwargs)
except Exception, e:
module.fail_json(msg = "Error in connecting to neutron: %s " % e.message)
return neutron
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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, e:
module.fail_json(msg = "Error in getting the server list: %s" % e.message)
return server_info, server
def _get_port_info(neutron, module, instance_id, internal_network_name=None):
subnet_id = None
if internal_network_name:
kwargs = {'name': internal_network_name}
networks = neutron.list_networks(**kwargs)
network_id = networks['networks'][0]['id']
kwargs = {
'network_id': network_id,
'ip_version': 4
}
subnets = neutron.list_subnets(**kwargs)
subnet_id = subnets['subnets'][0]['id']
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kwargs = {
'device_id': instance_id,
}
try:
ports = neutron.list_ports(**kwargs)
except Exception, e:
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module.fail_json( msg = "Error in listing ports: %s" % e.message)
if subnet_id:
port = next(port for port in ports['ports'] if port['fixed_ips'][0]['subnet_id'] == subnet_id)
port_id = port['id']
fixed_ip_address = port['fixed_ips'][0]['ip_address']
else:
port_id = ports['ports'][0]['id']
fixed_ip_address = ports['ports'][0]['fixed_ips'][0]['ip_address']
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if not ports['ports']:
return None, None
return fixed_ip_address, port_id
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def _get_floating_ip(module, neutron, fixed_ip_address, network_name):
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kwargs = {
'fixed_ip_address': fixed_ip_address
}
try:
ips = neutron.list_floatingips(**kwargs)
except Exception, e:
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module.fail_json(msg = "error in fetching the floatingips's %s" % e.message)
if not ips['floatingips']:
return None, None
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for address in ips['floatingips']:
if _check_ips_network(neutron, address['floating_network_id'], network_name):
return address['id'], address['floating_ip_address']
return None, None
def _check_ips_network(neutron, net_id, network_name):
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if neutron.show_network(net_id)['network']['name'] == network_name:
return True
else:
return False
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def _create_floating_ip(neutron, module, port_id, net_id, fixed_ip):
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kwargs = {
'port_id': port_id,
'floating_network_id': net_id,
'fixed_ip_address': fixed_ip
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}
try:
result = neutron.create_floatingip({'floatingip': kwargs})
except Exception, e:
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module.fail_json(msg="There was an error in updating the floating ip address: %s" % e.message)
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module.exit_json(changed=True, result=result, public_ip=result['floatingip']['floating_ip_address'])
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def _get_net_id(neutron, module):
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kwargs = {
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'name': module.params['network_name'],
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}
try:
networks = neutron.list_networks(**kwargs)
except Exception, e:
module.fail_json("Error in listing neutron networks: %s" % e.message)
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if not networks['networks']:
return None
return networks['networks'][0]['id']
def _update_floating_ip(neutron, module, port_id, floating_ip_id):
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kwargs = {
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'port_id': port_id
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}
try:
result = neutron.update_floatingip(floating_ip_id, {'floatingip': kwargs})
except Exception, e:
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module.fail_json(msg="There was an error in updating the floating ip address: %s" % e.message)
module.exit_json(changed=True, result=result)
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def main():
argument_spec = openstack_argument_spec()
argument_spec.update(dict(
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network_name = dict(required=True),
instance_name = dict(required=True),
state = dict(default='present', choices=['absent', 'present']),
internal_network_name = dict(default=None),
))
module = AnsibleModule(argument_spec=argument_spec)
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try:
nova = nova_client.Client(module.params['login_username'], module.params['login_password'],
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module.params['login_tenant_name'], module.params['auth_url'], region_name=module.params['region_name'], service_type='compute')
neutron = _get_neutron_client(module, module.params)
except Exception, e:
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module.fail_json(msg="Error in authenticating to nova: %s" % e.message)
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server_info, server_obj = _get_server_state(module, nova)
if not server_info:
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module.fail_json(msg="The instance name provided cannot be found")
fixed_ip, port_id = _get_port_info(neutron, module, server_info['id'], module.params['internal_network_name'])
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if not port_id:
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module.fail_json(msg="Cannot find a port for this instance, maybe fixed ip is not assigned")
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floating_id, floating_ip = _get_floating_ip(module, neutron, fixed_ip, module.params['network_name'])
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if module.params['state'] == 'present':
if floating_ip:
module.exit_json(changed = False, public_ip=floating_ip)
net_id = _get_net_id(neutron, module)
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if not net_id:
module.fail_json(msg = "cannot find the network specified, please check")
_create_floating_ip(neutron, module, port_id, net_id, fixed_ip)
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if module.params['state'] == 'absent':
if floating_ip:
_update_floating_ip(neutron, module, None, floating_id)
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module.exit_json(changed=False)
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# this is magic, see lib/ansible/module.params['common.py
from ansible.module_utils.basic import *
from ansible.module_utils.openstack import *
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main()