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Adds bigip profile for http2 (#47782)

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This allows one to manage HTTP2 profiles on a BIG-IP
pull/47783/head
Tim Rupp 6 years ago committed by GitHub
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680
lib/ansible/modules/network/f5/bigip_profile_http2.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright: (c) 2018, 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': 'certified'}
DOCUMENTATION = r'''
---
module: bigip_profile_http2
short_description: Manage HTTP2 profiles on a BIG-IP
description:
- Manage HTTP2 profiles on a BIG-IP.
version_added: 2.8
options:
name:
description:
- Specifies the name of the profile.
required: True
parent:
description:
- Specifies the profile from which this profile inherits settings.
- When creating a new profile, if this parameter is not specified, the default
is the system-supplied C(http2) profile.
default: /Common/http2
description:
description:
- Description of the profile.
streams:
description:
- Specifies the number of outstanding concurrent requests that are allowed on a single HTTP/2 connection.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
- The valid value range is C(1 - 256).
type: int
idle_timeout:
description:
- Specifies the number of seconds that an HTTP/2 connection is idly left open before being shut down.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
type: int
insert_header:
description:
- Specifies whether an HTTP header indicating the use of HTTP/2 should be inserted into the request
that goes to the server.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
type: bool
insert_header_name:
description:
- Specifies the name of the HTTP header controlled by C(insert_header) parameter.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
enforce_tls_requirements:
description:
- Specifies whether the system requires TLS for communications between specified senders and recipients.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
type: bool
activation_modes:
description:
- Specifies what will cause an incoming connection to be handled as a HTTP/2 connection.
- The C(alpn) and C(always) are mutually exclusive.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
choices:
- alpn
- always
type: list
frame_size:
description:
- Specifies the size of data frames, in bytes, that HTTP/2 sends to the client.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
- The valid value range in bytes is C(1024 - 16384).
type: int
write_size:
description:
- Specifies the total size of combined data frames, in bytes, that HTTP/2 sends in a single write.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
- The valid value range in bytes is C(2048 - 32768).
type: int
receive_window:
description:
- Specifies the way that the HTTP/2 profile performs flow control.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
- The valid value range in kilobytes is C(16 - 128).
type: int
header_table_size:
description:
- Specifies the size of the header table, in bytes.
- When creating a new profile, if this parameter is not specified, the default is provided by the parent profile.
- The valid value range in bytes is C(0 - 65535).
type: int
partition:
description:
- Device partition to manage resources on.
default: Common
state:
description:
- When C(present), ensures that the profile exists.
- When C(absent), ensures the profile is removed.
default: present
choices:
- present
- absent
extends_documentation_fragment: f5
author:
- Wojciech Wypior(@wojtek0806)
'''
EXAMPLES = r'''
- name: Create HTTP2 profile
bigip_profile_http2:
name: my_profile
password: secret
server: lb.mydomain.com
insert_header: yes
insert_header_name: FOO
state: present
user: admin
delegate_to: localhost
- name: Remove HTTP profile
bigip_profile_http2:
name: my_profile
state: absent
server: lb.mydomain.com
user: admin
password: secret
delegate_to: localhost
- name: Add HTTP profile set activation modes
bigip_profile_http:
name: my_profile
server: lb.mydomain.com
user: admin
activation_modes:
- always
password: secret
delegate_to: localhost
'''
RETURN = r'''
description:
description: Description of the profile.
returned: changed
type: string
sample: My profile
insert_header_name:
description: Specifies the name of the HTTP2 header
returned: changed
type: string
sample: X-HTTP2
streams:
description: The number of outstanding concurrent requests allowed on a single HTTP/2 connection
returned: changed
type: int
sample: 30
enforce_tls_requirements:
description: pecifies whether the system requires TLS for communications.
returned: changed
type: bool
sample: yes
frame_size:
description: The size of the data frames
returned: changed
type: int
sample: 30
activation_modes:
description: Specifies HTTP/2 connection handling modes
returned: changed
type: list
sample: ['always']
'''
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.basic import env_fallback
try:
from library.module_utils.network.f5.bigip import F5RestClient
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 fq_name
from library.module_utils.network.f5.common import transform_name
from library.module_utils.network.f5.common import flatten_boolean
from library.module_utils.network.f5.common import is_empty_list
from library.module_utils.network.f5.common import f5_argument_spec
from library.module_utils.network.f5.common import exit_json
from library.module_utils.network.f5.common import fail_json
except ImportError:
from ansible.module_utils.network.f5.bigip import F5RestClient
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 fq_name
from ansible.module_utils.network.f5.common import transform_name
from ansible.module_utils.network.f5.common import flatten_boolean
from ansible.module_utils.network.f5.common import is_empty_list
from ansible.module_utils.network.f5.common import f5_argument_spec
from ansible.module_utils.network.f5.common import exit_json
from ansible.module_utils.network.f5.common import fail_json
class Parameters(AnsibleF5Parameters):
api_map = {
'activationModes': 'activation_modes',
'concurrentStreamsPerConnection': 'streams',
'connectionIdleTimeout': 'idle_timeout',
'defaultsFrom': 'parent',
'enforceTlsRequirements': 'enforce_tls_requirements',
'frameSize': 'frame_size',
'headerTableSize': 'header_table_size',
'insertHeader': 'insert_header',
'insertHeaderName': 'insert_header_name',
'receiveWindow': 'receive_window',
'writeSize': 'write_size',
}
api_attributes = [
'activationModes',
'concurrentStreamsPerConnection',
'connectionIdleTimeout',
'description',
'defaultsFrom',
'enforceTlsRequirements',
'frameSize',
'headerTableSize',
'insertHeader',
'insertHeaderName',
'receiveWindow',
'writeSize',
]
returnables = [
'activation_modes',
'streams',
'description',
'idle_timeout',
'parent',
'enforce_tls_requirements',
'frame_size',
'header_table_size',
'insert_header',
'insert_header_name',
'receive_window',
'write_size',
]
updatables = [
'activation_modes',
'streams',
'description',
'idle_timeout',
'parent',
'enforce_tls_requirements',
'frame_size',
'header_table_size',
'insert_header',
'insert_header_name',
'receive_window',
'write_size',
]
class ApiParameters(Parameters):
pass
class ModuleParameters(Parameters):
@property
def parent(self):
if self._values['parent'] is None:
return None
result = fq_name(self.partition, self._values['parent'])
return result
@property
def streams(self):
streams = self._values['streams']
if streams is None:
return None
if streams < 1 or streams > 256:
raise F5ModuleError(
"Streams value must be between 1 and 256"
)
return self._values['streams']
@property
def receive_window(self):
window = self._values['receive_window']
if window is None:
return None
if window < 16 or window > 128:
raise F5ModuleError(
"Receive Window value must be between 16 and 128"
)
return self._values['receive_window']
@property
def header_table_size(self):
header = self._values['header_table_size']
if header is None:
return None
if header < 0 or header > 65535:
raise F5ModuleError(
"Header Table Size value must be between 0 and 65535"
)
return self._values['header_table_size']
@property
def write_size(self):
write = self._values['write_size']
if write is None:
return None
if write < 2048 or write > 32768:
raise F5ModuleError(
"Write Size value must be between 2048 and 32768"
)
return self._values['write_size']
@property
def frame_size(self):
frame = self._values['frame_size']
if frame is None:
return None
if frame < 1024 or frame > 16384:
raise F5ModuleError(
"Write Size value must be between 1024 and 16384"
)
return self._values['frame_size']
@property
def enforce_tls_requirements(self):
result = flatten_boolean(self._values['enforce_tls_requirements'])
if result is None:
return None
if result == 'yes':
return 'enabled'
return 'disabled'
@property
def insert_header(self):
result = flatten_boolean(self._values['insert_header'])
if result is None:
return None
if result == 'yes':
return 'enabled'
return 'disabled'
@property
def activation_modes(self):
value = self._values['activation_modes']
if value is None:
return None
if is_empty_list(value):
raise F5ModuleError(
"Activation Modes cannot be empty, please provide a value"
)
return value
class Changes(Parameters):
def to_return(self):
result = {}
try:
for returnable in self.returnables:
result[returnable] = getattr(self, returnable)
result = self._filter_params(result)
except Exception:
pass
return result
class UsableChanges(Changes):
pass
class ReportableChanges(Changes):
@property
def insert_header(self):
if self._values['insert_header'] is None:
return None
elif self._values['insert_header'] == 'enabled':
return 'yes'
return 'no'
@property
def enforce_tls_requirements(self):
if self._values['enforce_tls_requirements'] is None:
return None
elif self._values['enforce_tls_requirements'] == 'enabled':
return 'yes'
return 'no'
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 parent(self):
if self.want.parent != self.have.parent:
raise F5ModuleError(
"The parent profile cannot be changed"
)
@property
def description(self):
if self.want.description is None:
return None
if self.want.description == '':
if self.have.description is None or self.have.description == "none":
return None
if self.want.description != self.have.description:
return self.want.description
class ModuleManager(object):
def __init__(self, *args, **kwargs):
self.module = kwargs.get('module', None)
self.client = kwargs.get('client', None)
self.want = ModuleParameters(params=self.module.params)
self.have = ApiParameters()
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 isinstance(change, dict):
changed.update(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
if state == "present":
changed = self.present()
elif state == "absent":
changed = self.absent()
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.client.module.deprecate(
msg=warning['msg'],
version=warning['version']
)
def present(self):
if self.exists():
return self.update()
else:
return self.create()
def absent(self):
if self.exists():
return self.remove()
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 should_update(self):
result = self._update_changed_options()
if result:
return True
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 resource.")
return True
def create(self):
self._set_changed_options()
if self.module.check_mode:
return True
self.create_on_device()
return True
def exists(self):
uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http2/{2}".format(
self.client.provider['server'],
self.client.provider['server_port'],
transform_name(self.want.partition, self.want.name)
)
resp = self.client.api.get(uri)
try:
response = resp.json()
except ValueError:
return False
if resp.status == 404 or 'code' in response and response['code'] == 404:
return False
return True
def create_on_device(self):
params = self.changes.api_params()
params['name'] = self.want.name
params['partition'] = self.want.partition
uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http2/".format(
self.client.provider['server'],
self.client.provider['server_port']
)
resp = self.client.api.post(uri, json=params)
try:
response = resp.json()
except ValueError as ex:
raise F5ModuleError(str(ex))
if 'code' in response and response['code'] in [400, 403]:
if 'message' in response:
raise F5ModuleError(response['message'])
else:
raise F5ModuleError(resp.content)
return response['selfLink']
def update_on_device(self):
params = self.changes.api_params()
uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http2/{2}".format(
self.client.provider['server'],
self.client.provider['server_port'],
transform_name(self.want.partition, self.want.name)
)
resp = self.client.api.patch(uri, json=params)
try:
response = resp.json()
except ValueError as ex:
raise F5ModuleError(str(ex))
if 'code' in response and response['code'] == 400:
if 'message' in response:
raise F5ModuleError(response['message'])
else:
raise F5ModuleError(resp.content)
def remove_from_device(self):
uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http2/{2}".format(
self.client.provider['server'],
self.client.provider['server_port'],
transform_name(self.want.partition, self.want.name)
)
response = self.client.api.delete(uri)
if response.status == 200:
return True
raise F5ModuleError(response.content)
def read_current_from_device(self):
uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http2/{2}".format(
self.client.provider['server'],
self.client.provider['server_port'],
transform_name(self.want.partition, self.want.name)
)
resp = self.client.api.get(uri)
try:
response = resp.json()
except ValueError as ex:
raise F5ModuleError(str(ex))
if 'code' in response and response['code'] == 400:
if 'message' in response:
raise F5ModuleError(response['message'])
else:
raise F5ModuleError(resp.content)
return ApiParameters(params=response)
class ArgumentSpec(object):
def __init__(self):
self.supports_check_mode = True
argument_spec = dict(
name=dict(required=True),
parent=dict(default='/Common/http2'),
activation_modes=dict(
type='list',
choices=[
'alpn', 'always'
],
mutually_exclusive=['always', 'alpn'],
),
description=dict(),
enforce_tls_requirements=dict(type='bool'),
streams=dict(type='int'),
idle_timeout=dict(type='int'),
frame_size=dict(type='int'),
header_table_size=dict(type='int'),
insert_header=dict(type='bool'),
insert_header_name=dict(),
receive_window=dict(type='int'),
write_size=dict(type='int'),
state=dict(
default='present',
choices=['present', 'absent']
),
partition=dict(
default='Common',
fallback=(env_fallback, ['F5_PARTITION'])
)
)
self.argument_spec = {}
self.argument_spec.update(f5_argument_spec)
self.argument_spec.update(argument_spec)
def main():
spec = ArgumentSpec()
module = AnsibleModule(
argument_spec=spec.argument_spec,
supports_check_mode=spec.supports_check_mode,
)
client = F5RestClient(**module.params)
try:
mm = ModuleManager(module=module, client=client)
results = mm.exec_module()
cleanup_tokens(client)
exit_json(module, results, client)
except F5ModuleError as ex:
cleanup_tokens(client)
fail_json(module, ex, client)
if __name__ == '__main__':
main()

27
test/units/modules/network/f5/fixtures/load_ltm_http2_profile.json
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{
"kind": "tm:ltm:profile:http2:http2state",
"name": "test",
"partition": "Common",
"fullPath": "/Common/test",
"generation": 5852,
"selfLink": "https://localhost/mgmt/tm/ltm/profile/http2/~Common~test?ver=13.1.0.8",
"activationModes": [
"always"
],
"appService": "none",
"concurrentStreamsPerConnection": 10,
"connectionIdleTimeout": 300,
"defaultsFrom": "/Common/http2",
"defaultsFromReference": {
"link": "https://localhost/mgmt/tm/ltm/profile/http2/~Common~http2?ver=13.1.0.8"
},
"description": "this is awful documentation",
"enforceTlsRequirements": "enabled",
"frameSize": 2048,
"headerTableSize": 4096,
"includeContentLength": "disabled",
"insertHeader": "disabled",
"insertHeaderName": "X-HTTP2",
"receiveWindow": 32,
"writeSize": 16384
}

132
test/units/modules/network/f5/test_bigip_profile_http2.py
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# -*- coding: utf-8 -*-
#
# Copyright: (c) 2018, 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.module_utils.basic import AnsibleModule
try:
from library.modules.bigip_profile_http2 import ApiParameters
from library.modules.bigip_profile_http2 import ModuleParameters
from library.modules.bigip_profile_http2 import ModuleManager
from library.modules.bigip_profile_http2 import ArgumentSpec
# In Ansible 2.8, Ansible changed import paths.
from test.units.compat import unittest
from test.units.compat.mock import Mock
from test.units.compat.mock import patch
from test.units.modules.utils import set_module_args
except ImportError:
try:
from ansible.modules.network.f5.bigip_profile_http2 import ApiParameters
from ansible.modules.network.f5.bigip_profile_http2 import ModuleParameters
from ansible.modules.network.f5.bigip_profile_http2 import ModuleManager
from ansible.modules.network.f5.bigip_profile_http2 import ArgumentSpec
# Ansible 2.8 imports
from units.compat import unittest
from units.compat.mock import Mock
from units.compat.mock import patch
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(
name='foo',
parent='bar',
description='This is a Test',
streams=20,
enforce_tls_requirements=True,
frame_size=1024,
activation_modes=['always'],
insert_header=True,
insert_header_name='FOO'
)
p = ModuleParameters(params=args)
assert p.name == 'foo'
assert p.parent == '/Common/bar'
assert p.description == 'This is a Test'
assert p.streams == 20
assert p.enforce_tls_requirements == 'enabled'
assert p.frame_size == 1024
assert p.activation_modes == ['always']
assert p.insert_header == 'enabled'
assert p.insert_header_name == 'FOO'
def test_api_parameters(self):
args = load_fixture('load_ltm_http2_profile.json')
p = ApiParameters(params=args)
assert p.name == 'test'
assert p.streams == 10
assert p.enforce_tls_requirements == 'enabled'
class TestManager(unittest.TestCase):
def setUp(self):
self.spec = ArgumentSpec()
def test_create(self, *args):
# Configure the arguments that would be sent to the Ansible module
set_module_args(dict(
name='foo',
enforce_tls_requirements='yes',
parent='bar',
password='password',
server='localhost',
user='admin'
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
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['enforce_tls_requirements'] == 'yes'
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