345 lines
12 KiB
Python
345 lines
12 KiB
Python
#!/usr/bin/python
|
|
#coding: utf-8 -*-
|
|
|
|
# (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_subnet
|
|
short_description: Add/Remove subnet to an OpenStack network
|
|
extends_documentation_fragment: openstack
|
|
version_added: "2.0"
|
|
author: "Monty Taylor (@emonty)"
|
|
description:
|
|
- Add or Remove a subnet to an OpenStack network
|
|
options:
|
|
state:
|
|
description:
|
|
- Indicate desired state of the resource
|
|
choices: ['present', 'absent']
|
|
required: false
|
|
default: present
|
|
network_name:
|
|
description:
|
|
- Name of the network to which the subnet should be attached
|
|
- requried when I(state) is 'present'
|
|
required: false
|
|
name:
|
|
description:
|
|
- The name of the subnet that should be created. Although Neutron
|
|
allows for non-unique subnet names, this module enforces subnet
|
|
name uniqueness.
|
|
required: true
|
|
cidr:
|
|
description:
|
|
- The CIDR representation of the subnet that should be assigned to
|
|
the subnet. Required when I(state) is 'present'
|
|
required: false
|
|
default: None
|
|
ip_version:
|
|
description:
|
|
- The IP version of the subnet 4 or 6
|
|
required: false
|
|
default: 4
|
|
enable_dhcp:
|
|
description:
|
|
- Whether 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
|
|
dns_nameservers:
|
|
description:
|
|
- List of DNS nameservers 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
|
|
host_routes:
|
|
description:
|
|
- A list of host route dictionaries for the subnet.
|
|
required: false
|
|
default: None
|
|
ipv6_ra_mode:
|
|
description:
|
|
- IPv6 router advertisement mode
|
|
choices: ['dhcpv6-stateful', 'dhcpv6-stateless', 'slaac']
|
|
required: false
|
|
default: None
|
|
ipv6_address_mode:
|
|
description:
|
|
- IPv6 address mode
|
|
choices: ['dhcpv6-stateful', 'dhcpv6-stateless', 'slaac']
|
|
required: false
|
|
default: None
|
|
project:
|
|
description:
|
|
- Project name or ID containing the subnet (name admin-only)
|
|
required: false
|
|
default: None
|
|
version_added: "2.1"
|
|
requirements:
|
|
- "python >= 2.6"
|
|
- "shade"
|
|
'''
|
|
|
|
EXAMPLES = '''
|
|
# Create a new (or update an existing) subnet on the specified network
|
|
- os_subnet:
|
|
state: present
|
|
network_name: network1
|
|
name: net1subnet
|
|
cidr: 192.168.0.0/24
|
|
dns_nameservers:
|
|
- 8.8.8.7
|
|
- 8.8.8.8
|
|
host_routes:
|
|
- destination: 0.0.0.0/0
|
|
nexthop: 12.34.56.78
|
|
- destination: 192.168.0.0/24
|
|
nexthop: 192.168.0.1
|
|
|
|
# Delete a subnet
|
|
- os_subnet:
|
|
state: absent
|
|
name: net1subnet
|
|
|
|
# Create an ipv6 stateless subnet
|
|
- os_subnet:
|
|
state: present
|
|
name: intv6
|
|
network_name: internal
|
|
ip_version: 6
|
|
cidr: 2db8:1::/64
|
|
dns_nameservers:
|
|
- 2001:4860:4860::8888
|
|
- 2001:4860:4860::8844
|
|
ipv6_ra_mode: dhcpv6-stateless
|
|
ipv6_address_mode: dhcpv6-stateless
|
|
'''
|
|
|
|
def _can_update(subnet, module, cloud):
|
|
"""Check for differences in non-updatable values"""
|
|
network_name = module.params['network_name']
|
|
cidr = module.params['cidr']
|
|
ip_version = int(module.params['ip_version'])
|
|
ipv6_ra_mode = module.params['ipv6_ra_mode']
|
|
ipv6_a_mode = module.params['ipv6_address_mode']
|
|
|
|
if network_name:
|
|
network = cloud.get_network(network_name)
|
|
if network:
|
|
netid = network['id']
|
|
else:
|
|
module.fail_json(msg='No network found for %s' % network_name)
|
|
if netid != subnet['network_id']:
|
|
module.fail_json(msg='Cannot update network_name in existing \
|
|
subnet')
|
|
if ip_version and subnet['ip_version'] != ip_version:
|
|
module.fail_json(msg='Cannot update ip_version in existing subnet')
|
|
if ipv6_ra_mode and subnet.get('ipv6_ra_mode', None) != ip_version:
|
|
module.fail_json(msg='Cannot update ipv6_ra_mode in existing subnet')
|
|
if ipv6_a_mode and subnet.get('ipv6_address_mode', None) != ipv6_a_mode:
|
|
module.fail_json(msg='Cannot update ipv6_address_mode in existing \
|
|
subnet')
|
|
|
|
def _needs_update(subnet, module, cloud):
|
|
"""Check for differences in the updatable values."""
|
|
|
|
# First check if we are trying to update something we're not allowed to
|
|
_can_update(subnet, module, cloud)
|
|
|
|
# now check for the things we are allowed to update
|
|
enable_dhcp = module.params['enable_dhcp']
|
|
subnet_name = module.params['name']
|
|
pool_start = module.params['allocation_pool_start']
|
|
pool_end = module.params['allocation_pool_end']
|
|
gateway_ip = module.params['gateway_ip']
|
|
dns = module.params['dns_nameservers']
|
|
host_routes = module.params['host_routes']
|
|
curr_pool = subnet['allocation_pools'][0]
|
|
|
|
if subnet['enable_dhcp'] != enable_dhcp:
|
|
return True
|
|
if subnet_name and subnet['name'] != subnet_name:
|
|
return True
|
|
if pool_start and curr_pool['start'] != pool_start:
|
|
return True
|
|
if pool_end and curr_pool['end'] != pool_end:
|
|
return True
|
|
if gateway_ip and subnet['gateway_ip'] != gateway_ip:
|
|
return True
|
|
if dns and sorted(subnet['dns_nameservers']) != sorted(dns):
|
|
return True
|
|
if host_routes:
|
|
curr_hr = sorted(subnet['host_routes'], key=lambda t: t.keys())
|
|
new_hr = sorted(host_routes, key=lambda t: t.keys())
|
|
if sorted(curr_hr) != sorted(new_hr):
|
|
return True
|
|
return False
|
|
|
|
|
|
def _system_state_change(module, subnet, cloud):
|
|
state = module.params['state']
|
|
if state == 'present':
|
|
if not subnet:
|
|
return True
|
|
return _needs_update(subnet, module, cloud)
|
|
if state == 'absent' and subnet:
|
|
return True
|
|
return False
|
|
|
|
|
|
def main():
|
|
ipv6_mode_choices = ['dhcpv6-stateful', 'dhcpv6-stateless', 'slaac']
|
|
argument_spec = openstack_full_argument_spec(
|
|
name=dict(required=True),
|
|
network_name=dict(default=None),
|
|
cidr=dict(default=None),
|
|
ip_version=dict(default='4', choices=['4', '6']),
|
|
enable_dhcp=dict(default='true', type='bool'),
|
|
gateway_ip=dict(default=None),
|
|
dns_nameservers=dict(default=None, type='list'),
|
|
allocation_pool_start=dict(default=None),
|
|
allocation_pool_end=dict(default=None),
|
|
host_routes=dict(default=None, type='list'),
|
|
ipv6_ra_mode=dict(default=None, choice=ipv6_mode_choices),
|
|
ipv6_address_mode=dict(default=None, choice=ipv6_mode_choices),
|
|
state=dict(default='present', choices=['absent', 'present']),
|
|
project=dict(default=None)
|
|
)
|
|
|
|
module_kwargs = openstack_module_kwargs()
|
|
module = AnsibleModule(argument_spec,
|
|
supports_check_mode=True,
|
|
**module_kwargs)
|
|
|
|
if not HAS_SHADE:
|
|
module.fail_json(msg='shade is required for this module')
|
|
|
|
state = module.params['state']
|
|
network_name = module.params['network_name']
|
|
cidr = module.params['cidr']
|
|
ip_version = module.params['ip_version']
|
|
enable_dhcp = module.params['enable_dhcp']
|
|
subnet_name = module.params['name']
|
|
gateway_ip = module.params['gateway_ip']
|
|
dns = module.params['dns_nameservers']
|
|
pool_start = module.params['allocation_pool_start']
|
|
pool_end = module.params['allocation_pool_end']
|
|
host_routes = module.params['host_routes']
|
|
ipv6_ra_mode = module.params['ipv6_ra_mode']
|
|
ipv6_a_mode = module.params['ipv6_address_mode']
|
|
project = module.params.pop('project')
|
|
|
|
# Check for required parameters when state == 'present'
|
|
if state == 'present':
|
|
for p in ['network_name', 'cidr']:
|
|
if not module.params[p]:
|
|
module.fail_json(msg='%s required with present state' % p)
|
|
|
|
if pool_start and pool_end:
|
|
pool = [dict(start=pool_start, end=pool_end)]
|
|
elif pool_start or pool_end:
|
|
module.fail_json(msg='allocation pool requires start and end values')
|
|
else:
|
|
pool = None
|
|
|
|
try:
|
|
cloud = shade.openstack_cloud(**module.params)
|
|
if project is not None:
|
|
proj = cloud.get_project(project)
|
|
if proj is None:
|
|
module.fail_json(msg='Project %s could not be found' % project)
|
|
project_id = proj['id']
|
|
filters = {'tenant_id': project_id}
|
|
else:
|
|
project_id = None
|
|
filters = None
|
|
|
|
subnet = cloud.get_subnet(subnet_name, filters=filters)
|
|
|
|
if module.check_mode:
|
|
module.exit_json(changed=_system_state_change(module, subnet,
|
|
cloud))
|
|
|
|
if state == 'present':
|
|
if not subnet:
|
|
subnet = cloud.create_subnet(network_name, cidr,
|
|
ip_version=ip_version,
|
|
enable_dhcp=enable_dhcp,
|
|
subnet_name=subnet_name,
|
|
gateway_ip=gateway_ip,
|
|
dns_nameservers=dns,
|
|
allocation_pools=pool,
|
|
host_routes=host_routes,
|
|
ipv6_ra_mode=ipv6_ra_mode,
|
|
ipv6_address_mode=ipv6_a_mode,
|
|
tenant_id=project_id)
|
|
changed = True
|
|
else:
|
|
if _needs_update(subnet, module, cloud):
|
|
cloud.update_subnet(subnet['id'],
|
|
subnet_name=subnet_name,
|
|
enable_dhcp=enable_dhcp,
|
|
gateway_ip=gateway_ip,
|
|
dns_nameservers=dns,
|
|
allocation_pools=pool,
|
|
host_routes=host_routes)
|
|
changed = True
|
|
else:
|
|
changed = False
|
|
module.exit_json(changed=changed,
|
|
subnet=subnet,
|
|
id=subnet['id'])
|
|
|
|
elif state == 'absent':
|
|
if not subnet:
|
|
changed = False
|
|
else:
|
|
changed = True
|
|
cloud.delete_subnet(subnet_name)
|
|
module.exit_json(changed=changed)
|
|
|
|
except shade.OpenStackCloudException as e:
|
|
module.fail_json(msg=str(e))
|
|
|
|
|
|
# this is magic, see lib/ansible/module_common.py
|
|
from ansible.module_utils.basic import *
|
|
from ansible.module_utils.openstack import *
|
|
if __name__ == '__main__':
|
|
main()
|