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#!/usr/bin/python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
# Copyright (c) 2013, Benno Joy <benno@ansible.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:
import shade
HAS_SHADE = True
except ImportError:
HAS_SHADE = False
DOCUMENTATION = '''
---
module: os_router_gateway
short_description: set/unset a gateway interface for the router with the specified external network
version_added: "1.10"
extends_documentation_fragment: openstack
description:
- Creates/Removes a gateway interface from the router, used to associate a external network with a router to route external traffic.
options:
state:
description:
- Indicate desired state of the resource
choices: ['present', 'absent']
default: present
router_name:
description:
- Name of the router to which the gateway should be attached.
required: true
default: None
network_name:
description:
- Name of the external network which should be attached to the router.
required: true
default: None
requirements: ["shade"]
'''
EXAMPLES = '''
# Attach an external network with a router to allow flow of external traffic
- os_router_gateway: state=present username=admin password=admin
project_name=admin router_name=external_router
network_name=external_network
'''
def _get_router_id(module, neutron):
kwargs = {
'name': module.params['router_name'],
}
try:
routers = neutron.list_routers(**kwargs)
except Exception, e:
module.fail_json(msg = "Error in getting the router list: %s " % e.message)
if not routers['routers']:
return None
return routers['routers'][0]['id']
def _get_net_id(neutron, module):
kwargs = {
'name': module.params['network_name'],
'router:external': True
}
try:
networks = neutron.list_networks(**kwargs)
except Exception, e:
module.fail_json("Error in listing neutron networks: %s" % e.message)
if not networks['networks']:
return None
return networks['networks'][0]['id']
def _get_port_id(neutron, module, router_id, network_id):
kwargs = {
'device_id': router_id,
'network_id': network_id,
}
try:
ports = neutron.list_ports(**kwargs)
except Exception, e:
module.fail_json( msg = "Error in listing ports: %s" % e.message)
if not ports['ports']:
return None
return ports['ports'][0]['id']
def _add_gateway_router(neutron, module, router_id, network_id):
kwargs = {
'network_id': network_id
}
try:
neutron.add_gateway_router(router_id, kwargs)
except Exception, e:
module.fail_json(msg = "Error in adding gateway to router: %s" % e.message)
return True
def _remove_gateway_router(neutron, module, router_id):
try:
neutron.remove_gateway_router(router_id)
except Exception, e:
module.fail_json(msg = "Error in removing gateway to router: %s" % e.message)
return True
def main():
argument_spec = openstack_argument_spec(
router_name = dict(required=True),
network_name = dict(required=True),
)
module_kwargs = openstack_module_kwargs()
module = AnsibleModule(argument_spec, **module_kwargs)
if not HAS_SHADE:
module.fail_json(msg='shade is required for this module')
try:
cloud = shade.openstack_cloud(**module.params)
neutron = cloud.neutron_client
router_id = _get_router_id(module, neutron)
if not router_id:
module.fail_json(msg="failed to get the router id, please check the router name")
network_id = _get_net_id(neutron, module)
if not network_id:
module.fail_json(msg="failed to get the network id, please check the network name and make sure it is external")
if module.params['state'] == 'present':
port_id = _get_port_id(neutron, module, router_id, network_id)
if not port_id:
_add_gateway_router(neutron, module, router_id, network_id)
module.exit_json(changed=True, result="created")
module.exit_json(changed=False, result="success")
if module.params['state'] == 'absent':
port_id = _get_port_id(neutron, module, router_id, network_id)
if not port_id:
module.exit_json(changed=False, result="Success")
_remove_gateway_router(neutron, module, router_id)
module.exit_json(changed=True, result="Deleted")
except shade.OpenStackCloudException as e:
module.fail_json(msg=e.message)
# this is magic, see lib/ansible/module_common.py
from ansible.module_utils.basic import *
from ansible.module_utils.openstack import *
main()
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