Adds bigip_static_route module (#34859)

This module can be used to manage static routes on a BIG-IP
pull/34921/head
Tim Rupp 7 years ago committed by GitHub
parent 5540e2f8a9
commit 9aba711519
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@ -0,0 +1,612 @@
#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2017 F5 Networks Inc.
# GNU General Public License v3.0 (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = r'''
module: bigip_static_route
short_description: Manipulate static routes on a BIG-IP
description:
- Manipulate static routes on a BIG-IP.
version_added: 2.5
options:
name:
description:
- Name of the static route.
required: True
description:
description:
- Descriptive text that identifies the route.
destination:
description:
- Specifies an IP address for the static entry in the routing table.
When creating a new static route, this value is required.
- This value cannot be changed once it is set.
netmask:
description:
- The netmask for the static route. When creating a new static route, this value
is required.
- This value can be in either IP or CIDR format.
- This value cannot be changed once it is set.
gateway_address:
description:
- Specifies the router for the system to use when forwarding packets
to the destination host or network. Also known as the next-hop router
address. This can be either an IPv4 or IPv6 address. When it is an
IPv6 address that starts with C(FE80:), the address will be treated
as a link-local address. This requires that the C(vlan) parameter
also be supplied.
vlan:
description:
- Specifies the VLAN or Tunnel through which the system forwards packets
to the destination. When C(gateway_address) is a link-local IPv6
address, this value is required
pool:
description:
- Specifies the pool through which the system forwards packets to the
destination.
reject:
description:
- Specifies that the system drops packets sent to the destination.
mtu:
description:
- Specifies a specific maximum transmission unit (MTU).
route_domain:
description:
- The route domain id of the system. When creating a new static route, if
this value is not specified, a default value of C(0) will be used.
- This value cannot be changed once it is set.
state:
description:
- When C(present), ensures that the cloud connector exists. When
C(absent), ensures that the cloud connector does not exist.
required: False
default: present
choices:
- present
- absent
notes:
- Requires the netaddr Python package on the host. This is as easy as pip
install netaddr.
extends_documentation_fragment: f5
requirements:
- netaddr
author:
- Tim Rupp (@caphrim007)
'''
EXAMPLES = r'''
- name: Create static route with gateway address
bigip_static_route:
destination: 10.10.10.10
netmask: 255.255.255.255
gateway_address: 10.2.2.3
name: test-route
password: secret
server: lb.mydomain.come
user: admin
validate_certs: no
delegate_to: localhost
'''
RETURN = r'''
vlan:
description: Whether the banner is enabled or not.
returned: changed
type: string
sample: true
gateway_address:
description: Whether the banner is enabled or not.
returned: changed
type: string
sample: true
destination:
description: Whether the banner is enabled or not.
returned: changed
type: string
sample: true
route_domain:
description: Route domain of the static route.
returned: changed
type: int
sample: 1
netmask:
description: Netmask of the destination.
returned: changed
type: string
sample: 255.255.255.255
pool:
description: Whether the banner is enabled or not.
returned: changed
type: string
sample: true
description:
description: Whether the banner is enabled or not.
returned: changed
type: string
sample: true
reject:
description: Whether the banner is enabled or not.
returned: changed
type: string
sample: true
'''
import re
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.parsing.convert_bool import BOOLEANS_TRUE
HAS_DEVEL_IMPORTS = False
try:
# Sideband repository used for dev
from library.module_utils.network.f5.bigip import HAS_F5SDK
from library.module_utils.network.f5.bigip import F5Client
from library.module_utils.network.f5.common import F5ModuleError
from library.module_utils.network.f5.common import AnsibleF5Parameters
from library.module_utils.network.f5.common import cleanup_tokens
from library.module_utils.network.f5.common import fqdn_name
from library.module_utils.network.f5.common import f5_argument_spec
try:
from library.module_utils.network.f5.common import iControlUnexpectedHTTPError
except ImportError:
HAS_F5SDK = False
HAS_DEVEL_IMPORTS = True
except ImportError:
# Upstream Ansible
from ansible.module_utils.network.f5.bigip import HAS_F5SDK
from ansible.module_utils.network.f5.bigip import F5Client
from ansible.module_utils.network.f5.common import F5ModuleError
from ansible.module_utils.network.f5.common import AnsibleF5Parameters
from ansible.module_utils.network.f5.common import cleanup_tokens
from ansible.module_utils.network.f5.common import fqdn_name
from ansible.module_utils.network.f5.common import f5_argument_spec
try:
from ansible.module_utils.network.f5.common import iControlUnexpectedHTTPError
except ImportError:
HAS_F5SDK = False
try:
import netaddr
HAS_NETADDR = True
except ImportError:
HAS_NETADDR = False
class Parameters(AnsibleF5Parameters):
api_map = {
'tmInterface': 'vlan',
'gw': 'gateway_address',
'network': 'destination',
'blackhole': 'reject'
}
updatables = [
'description', 'gateway_address', 'vlan',
'pool', 'mtu', 'reject', 'destination', 'route_domain',
'netmask'
]
returnables = [
'vlan', 'gateway_address', 'destination', 'pool', 'description',
'reject', 'mtu', 'netmask', 'route_domain'
]
api_attributes = [
'tmInterface', 'gw', 'network', 'blackhole', 'description', 'pool', 'mtu'
]
def to_return(self):
result = {}
for returnable in self.returnables:
result[returnable] = getattr(self, returnable)
result = self._filter_params(result)
return result
@property
def reject(self):
if self._values['reject'] in BOOLEANS_TRUE:
return True
class ModuleParameters(Parameters):
@property
def vlan(self):
if self._values['vlan'] is None:
return None
return fqdn_name(self.partition, self._values['vlan'])
@property
def gateway_address(self):
if self._values['gateway_address'] is None:
return None
try:
ip = netaddr.IPNetwork(self._values['gateway_address'])
return str(ip.ip)
except netaddr.core.AddrFormatError:
raise F5ModuleError(
"The provided gateway_address is not an IP address"
)
@property
def route_domain(self):
if self._values['route_domain'] is None:
return None
result = int(self._values['route_domain'])
return result
@property
def destination(self):
if self._values['destination'] is None:
return None
if self._values['destination'] == 'default':
self._values['destination'] = '0.0.0.0/0'
try:
ip = netaddr.IPNetwork(self.destination_ip)
if self.route_domain:
return '{0}%{2}/{1}'.format(ip.ip, ip.prefixlen, self.route_domain)
else:
return '{0}/{1}'.format(ip.ip, ip.prefixlen)
except netaddr.core.AddrFormatError:
raise F5ModuleError(
"The provided destination is not an IP address"
)
@property
def destination_ip(self):
if self._values['destination']:
ip = netaddr.IPNetwork('{0}/{1}'.format(self._values['destination'], self.netmask))
return '{0}/{1}'.format(ip.ip, ip.prefixlen)
@property
def netmask(self):
if self._values['netmask'] is None:
return None
# Check if numeric
if isinstance(self._values['netmask'], int):
result = int(self._values['netmask'])
if 0 < result < 256:
return result
raise F5ModuleError(
'The provided netmask {0} is neither in IP or CIDR format'.format(result)
)
else:
try:
# IPv4 netmask
address = '0.0.0.0/' + self._values['netmask']
ip = netaddr.IPNetwork(address)
except netaddr.AddrFormatError as ex:
try:
# IPv6 netmask
address = '::/' + self._values['netmask']
ip = netaddr.IPNetwork(address)
except netaddr.AddrFormatError as ex:
raise F5ModuleError(
'The provided netmask {0} is neither in IP or CIDR format'.format(self._values['netmask'])
)
result = int(ip.prefixlen)
return result
class ApiParameters(Parameters):
@property
def route_domain(self):
if self._values['destination'] is None:
return None
pattern = r'([0-9:]%(?P<rd>[0-9]+))'
matches = re.search(pattern, self._values['destination'])
if matches:
return int(matches.group('rd'))
return 0
@property
def destination_ip(self):
if self._values['destination'] is None:
return None
if self._values['destination'] == 'default':
self._values['destination'] = '0.0.0.0/0'
try:
pattern = r'(?P<rd>%[0-9]+)'
addr = re.sub(pattern, '', self._values['destination'])
ip = netaddr.IPNetwork(addr)
return '{0}/{1}'.format(ip.ip, ip.prefixlen)
except netaddr.core.AddrFormatError:
raise F5ModuleError(
"The provided destination is not an IP address"
)
@property
def netmask(self):
ip = netaddr.IPNetwork(self.destination_ip)
return int(ip.prefixlen)
class Changes(Parameters):
pass
class UsableChanges(Parameters):
pass
class ReportableChanges(Parameters):
pass
class Difference(object):
def __init__(self, want, have=None):
self.want = want
self.have = have
def compare(self, param):
try:
result = getattr(self, param)
return result
except AttributeError:
return self.__default(param)
def __default(self, param):
attr1 = getattr(self.want, param)
try:
attr2 = getattr(self.have, param)
if attr1 != attr2:
return attr1
except AttributeError:
return attr1
@property
def destination(self):
if self.want.destination_ip is None:
return None
if self.want.destination_ip != self.have.destination_ip:
raise F5ModuleError(
"The destination cannot be changed. Delete and recreate "
"the static route if you need to do this."
)
@property
def route_domain(self):
if self.want.route_domain is None:
return None
if self.want.route_domain is None and self.have.route_domain == 0:
return None
if self.want.route_domain != self.have.route_domain:
raise F5ModuleError("You cannot change the route domain.")
@property
def netmask(self):
if self.want.netmask is None:
return None
# It's easiest to just check the netmask by comparing dest IPs.
if self.want.destination_ip != self.have.destination_ip:
raise F5ModuleError(
"The netmask cannot be changed. Delete and recreate "
"the static route if you need to do this."
)
class ModuleManager(object):
def __init__(self, *args, **kwargs):
self.module = kwargs.get('module', None)
self.client = kwargs.get('client', None)
self.have = None
self.want = ModuleParameters(params=self.module.params)
self.changes = UsableChanges()
def _set_changed_options(self):
changed = {}
for key in Parameters.returnables:
if getattr(self.want, key) is not None:
changed[key] = getattr(self.want, key)
if changed:
self.changes = UsableChanges(params=changed)
def _update_changed_options(self):
diff = Difference(self.want, self.have)
updatables = Parameters.updatables
changed = dict()
for k in updatables:
change = diff.compare(k)
if change is None:
continue
else:
if k in ['netmask', 'route_domain']:
changed['address'] = change
else:
changed[k] = change
if changed:
self.changes = UsableChanges(params=changed)
return True
return False
def exec_module(self):
changed = False
result = dict()
state = self.want.state
try:
if state == "present":
changed = self.present()
elif state == "absent":
changed = self.absent()
except iControlUnexpectedHTTPError as e:
raise F5ModuleError(str(e))
reportable = ReportableChanges(params=self.changes.to_return())
changes = reportable.to_return()
result.update(**changes)
result.update(dict(changed=changed))
self._announce_deprecations(result)
return result
def _announce_deprecations(self, result):
warnings = result.pop('__warnings', [])
for warning in warnings:
self.module.deprecate(
msg=warning['msg'],
version=warning['version']
)
def exists(self):
collection = self.client.api.tm.net.routes.get_collection()
for resource in collection:
if resource.name == self.want.name:
if resource.partition == self.want.partition:
return True
return False
def present(self):
if self.exists():
return self.update()
else:
return self.create()
def create(self):
required_resources = ['pool', 'vlan', 'reject', 'gateway_address']
self._set_changed_options()
if self.want.destination is None:
raise F5ModuleError(
'destination must be specified when creating a static route'
)
if self.want.netmask is None:
raise F5ModuleError(
'netmask must be specified when creating a static route'
)
if all(getattr(self.want, v) is None for v in required_resources):
raise F5ModuleError(
"You must specify at least one of " + ', '.join(required_resources)
)
if self.module.check_mode:
return True
self.create_on_device()
return True
def should_update(self):
result = self._update_changed_options()
if result:
return True
return False
def update(self):
self.have = self.read_current_from_device()
if not self.should_update():
return False
if self.module.check_mode:
return True
self.update_on_device()
return True
def update_on_device(self):
params = self.want.api_params()
# The 'network' attribute is not updatable
params.pop('network', None)
result = self.client.api.tm.net.routes.route.load(
name=self.want.name,
partition=self.want.partition
)
result.modify(**params)
def read_current_from_device(self):
resource = self.client.api.tm.net.routes.route.load(
name=self.want.name,
partition=self.want.partition
)
result = resource.attrs
return ApiParameters(params=result)
def create_on_device(self):
params = self.want.api_params()
self.client.api.tm.net.routes.route.create(
name=self.want.name,
partition=self.want.partition,
**params
)
def absent(self):
if self.exists():
return self.remove()
return False
def remove(self):
if self.module.check_mode:
return True
self.remove_from_device()
if self.exists():
raise F5ModuleError("Failed to delete the static route")
return True
def remove_from_device(self):
result = self.client.api.tm.net.routes.route.load(
name=self.want.name,
partition=self.want.partition
)
if result:
result.delete()
class ArgumentSpec(object):
def __init__(self):
self.supports_check_mode = True
argument_spec = dict(
name=dict(required=True),
description=dict(),
destination=dict(),
netmask=dict(),
gateway_address=dict(),
vlan=dict(),
pool=dict(),
mtu=dict(),
reject=dict(
type='bool'
),
state=dict(
default='present',
choices=['absent', 'present']
),
route_domain=dict(type='int')
)
self.argument_spec = {}
self.argument_spec.update(f5_argument_spec)
self.argument_spec.update(argument_spec)
self.mutually_exclusive = [
['gateway_address', 'vlan', 'pool', 'reject']
]
def main():
spec = ArgumentSpec()
module = AnsibleModule(
argument_spec=spec.argument_spec,
supports_check_mode=spec.supports_check_mode,
mutually_exclusive=spec.mutually_exclusive,
)
if not HAS_F5SDK:
module.fail_json(msg="The python f5-sdk module is required")
if not HAS_NETADDR:
module.fail_json(msg="The python netaddr module is required")
try:
client = F5Client(**module.params)
mm = ModuleManager(module=module, client=client)
results = mm.exec_module()
cleanup_tokens(client)
module.exit_json(**results)
except F5ModuleError as ex:
cleanup_tokens(client)
module.fail_json(msg=str(ex))
if __name__ == '__main__':
main()

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{
"kind": "tm:net:route:routestate",
"name": "asdasd",
"partition": "Common",
"fullPath": "/Common/asdasd",
"generation": 113,
"selfLink": "https://localhost/mgmt/tm/net/route/~Common~asdasd?ver=12.1.0",
"description": "asdasd",
"mtu": 0,
"network": "2.2.2.2/32",
"pool": "/Common/adsasd",
"poolReference": {
"link": "https://localhost/mgmt/tm/ltm/pool/~Common~adsasd?ver=12.1.0"
}
}

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# -*- coding: utf-8 -*-
#
# Copyright (c) 2017 F5 Networks Inc.
# GNU General Public License v3.0 (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import json
import sys
from nose.plugins.skip import SkipTest
if sys.version_info < (2, 7):
raise SkipTest("F5 Ansible modules require Python >= 2.7")
from ansible.compat.tests import unittest
from ansible.compat.tests.mock import Mock
from ansible.compat.tests.mock import patch
from ansible.module_utils.basic import AnsibleModule
try:
from library.bigip_static_route import ApiParameters
from library.bigip_static_route import ModuleParameters
from library.bigip_static_route import ModuleManager
from library.bigip_static_route import ArgumentSpec
from library.module_utils.network.f5.common import F5ModuleError
from library.module_utils.network.f5.common import iControlUnexpectedHTTPError
from test.unit.modules.utils import set_module_args
except ImportError:
try:
from ansible.modules.network.f5.bigip_static_route import ApiParameters
from ansible.modules.network.f5.bigip_static_route import ModuleParameters
from ansible.modules.network.f5.bigip_static_route import ModuleManager
from ansible.modules.network.f5.bigip_static_route import ArgumentSpec
from ansible.module_utils.network.f5.common import F5ModuleError
from ansible.module_utils.network.f5.common import iControlUnexpectedHTTPError
from units.modules.utils import set_module_args
except ImportError:
raise SkipTest("F5 Ansible modules require the f5-sdk Python library")
fixture_path = os.path.join(os.path.dirname(__file__), 'fixtures')
fixture_data = {}
def load_fixture(name):
path = os.path.join(fixture_path, name)
if path in fixture_data:
return fixture_data[path]
with open(path) as f:
data = f.read()
try:
data = json.loads(data)
except Exception:
pass
fixture_data[path] = data
return data
class TestParameters(unittest.TestCase):
def test_module_parameters(self):
args = dict(
vlan="foo",
gateway_address="10.10.10.10"
)
p = ModuleParameters(params=args)
assert p.vlan == '/Common/foo'
assert p.gateway_address == '10.10.10.10'
def test_api_parameters(self):
args = dict(
tmInterface="foo",
gw="10.10.10.10"
)
p = ApiParameters(params=args)
assert p.vlan == 'foo'
assert p.gateway_address == '10.10.10.10'
def test_reject_parameter_types(self):
# boolean true
args = dict(reject=True)
p = ModuleParameters(params=args)
assert p.reject is True
# boolean false
args = dict(reject=False)
p = ModuleParameters(params=args)
assert p.reject is None
# string
args = dict(reject="yes")
p = ModuleParameters(params=args)
assert p.reject is True
# integer
args = dict(reject=1)
p = ModuleParameters(params=args)
assert p.reject is True
# none
args = dict(reject=None)
p = ModuleParameters(params=args)
assert p.reject is None
def test_destination_parameter_types(self):
# cidr address
args = dict(
destination="10.10.10.10",
netmask='32'
)
p = ModuleParameters(params=args)
assert p.destination == '10.10.10.10/32'
# netmask
args = dict(
destination="10.10.10.10",
netmask="255.255.255.255"
)
p = ModuleParameters(params=args)
assert p.destination == '10.10.10.10/32'
def test_vlan_with_partition(self):
args = dict(
vlan="/Common/foo",
gateway_address="10.10.10.10"
)
p = ModuleParameters(params=args)
assert p.vlan == '/Common/foo'
assert p.gateway_address == '10.10.10.10'
def test_api_route_domain(self):
args = dict(
destination="1.1.1.1/32%2"
)
p = ApiParameters(params=args)
assert p.route_domain == 2
args = dict(
destination="2700:bc00:1f10:101::6/64%2"
)
p = ApiParameters(params=args)
assert p.route_domain == 2
class TestManager(unittest.TestCase):
def setUp(self):
self.spec = ArgumentSpec()
def test_create_blackhole(self, *args):
set_module_args(dict(
name='test-route',
password='admin',
server='localhost',
user='admin',
state='present',
destination='10.10.10.10',
netmask='255.255.255.255',
reject='yes'
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
mutually_exclusive=self.spec.mutually_exclusive,
supports_check_mode=self.spec.supports_check_mode
)
mm = ModuleManager(module=module)
# Override methods to force specific logic in the module to happen
mm.exists = Mock(return_value=False)
mm.create_on_device = Mock(return_value=True)
results = mm.exec_module()
assert results['changed'] is True
def test_create_route_to_pool(self, *args):
set_module_args(dict(
name='test-route',
password='admin',
server='localhost',
user='admin',
state='present',
destination='10.10.10.10',
netmask='255.255.255.255',
pool="test-pool"
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
mutually_exclusive=self.spec.mutually_exclusive,
supports_check_mode=self.spec.supports_check_mode
)
mm = ModuleManager(module=module)
# Override methods to force specific logic in the module to happen
mm.exists = Mock(return_value=False)
mm.create_on_device = Mock(return_value=True)
results = mm.exec_module()
assert results['changed'] is True
assert results['pool'] == 'test-pool'
def test_create_route_to_vlan(self, *args):
set_module_args(dict(
name='test-route',
password='admin',
server='localhost',
user='admin',
state='present',
destination='10.10.10.10',
netmask='255.255.255.255',
vlan="test-vlan"
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
mutually_exclusive=self.spec.mutually_exclusive,
supports_check_mode=self.spec.supports_check_mode
)
mm = ModuleManager(module=module)
# Override methods to force specific logic in the module to happen
mm.exists = Mock(return_value=False)
mm.create_on_device = Mock(return_value=True)
results = mm.exec_module()
assert results['changed'] is True
assert results['vlan'] == '/Common/test-vlan'
def test_update_description(self, *args):
set_module_args(dict(
name='test-route',
password='admin',
server='localhost',
user='admin',
state='present',
description='foo description'
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
mutually_exclusive=self.spec.mutually_exclusive,
supports_check_mode=self.spec.supports_check_mode
)
mm = ModuleManager(module=module)
# Override methods to force specific logic in the module to happen
current = ApiParameters(params=load_fixture('load_net_route_description.json'))
mm.exists = Mock(return_value=True)
mm.update_on_device = Mock(return_value=True)
mm.read_current_from_device = Mock(return_value=current)
results = mm.exec_module()
assert results['changed'] is True
assert results['description'] == 'foo description'
def test_update_description_idempotent(self, *args):
set_module_args(dict(
name='test-route',
password='admin',
server='localhost',
user='admin',
state='present',
description='asdasd'
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
mutually_exclusive=self.spec.mutually_exclusive,
supports_check_mode=self.spec.supports_check_mode
)
mm = ModuleManager(module=module)
# Override methods to force specific logic in the module to happen
current = ApiParameters(params=load_fixture('load_net_route_description.json'))
mm.exists = Mock(return_value=True)
mm.update_on_device = Mock(return_value=True)
mm.read_current_from_device = Mock(return_value=current)
results = mm.exec_module()
# There is no assert for the description, because it should
# not have changed
assert results['changed'] is False
def test_delete(self, *args):
set_module_args(dict(
name='test-route',
password='admin',
server='localhost',
user='admin',
state='absent'
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
mutually_exclusive=self.spec.mutually_exclusive,
supports_check_mode=self.spec.supports_check_mode
)
mm = ModuleManager(module=module)
# Override methods to force specific logic in the module to happen
mm.exists = Mock(side_effect=[True, False])
mm.remove_from_device = Mock(return_value=True)
results = mm.exec_module()
assert results['changed'] is True
assert 'description' not in results
def test_invalid_unknown_params(self, *args):
set_module_args(dict(
name='test-route',
password='admin',
server='localhost',
user='admin',
state='present',
foo="bar"
))
with patch('ansible.module_utils.f5_utils.AnsibleModule.fail_json') as mo:
mo.return_value = True
AnsibleModule(
argument_spec=self.spec.argument_spec,
mutually_exclusive=self.spec.mutually_exclusive,
supports_check_mode=self.spec.supports_check_mode
)
assert mo.call_count == 1
def test_create_with_route_domain(self, *args):
set_module_args(dict(
name='test-route',
password='admin',
server='localhost',
user='admin',
state='present',
destination='10.10.10.10',
netmask='255.255.255.255',
route_domain=1,
reject='yes'
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
mutually_exclusive=self.spec.mutually_exclusive,
supports_check_mode=self.spec.supports_check_mode
)
mm = ModuleManager(module=module)
# Override methods to force specific logic in the module to happen
mm.exists = Mock(return_value=False)
mm.create_on_device = Mock(return_value=True)
results = mm.exec_module()
assert results['changed'] is True
assert results['route_domain'] == 1
assert results['destination'] == '10.10.10.10%1/32'
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