From 3a15b6512c85d9bc1709b1c0c838ed7395cfe247 Mon Sep 17 00:00:00 2001 From: Tim Rupp Date: Sun, 19 Aug 2018 02:46:56 -0400 Subject: [PATCH] Adds bigip http compression profile module (#44362) This module can be used to manage http compression profiles on a BIG-IP. --- .../f5/bigip_profile_http_compression.py | 540 ++++++++++++++++++ .../f5/test_bigip_profile_http_compression.py | 129 +++++ 2 files changed, 669 insertions(+) create mode 100644 lib/ansible/modules/network/f5/bigip_profile_http_compression.py create mode 100644 test/units/modules/network/f5/test_bigip_profile_http_compression.py diff --git a/lib/ansible/modules/network/f5/bigip_profile_http_compression.py b/lib/ansible/modules/network/f5/bigip_profile_http_compression.py new file mode 100644 index 0000000000..1bb29ef22b --- /dev/null +++ b/lib/ansible/modules/network/f5/bigip_profile_http_compression.py @@ -0,0 +1,540 @@ +#!/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': 'community'} + +DOCUMENTATION = r''' +--- +module: bigip_profile_http_compression +short_description: Manage HTTP compression profiles on a BIG-IP +description: + - Manage HTTP compression profiles on a BIG-IP. +version_added: 2.7 +options: + name: + description: + - Specifies the name of the compression 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(httpcompression) profile. + description: + description: + - Description of the HTTP compression profile. + buffer_size: + description: + - Maximum number of compressed bytes that the system buffers before inserting + a Content-Length header (which specifies the compressed size) into the response. + - When creating a new profile, if this parameter is not specified, the default + is provided by the parent profile. + gzip_level: + description: + - Specifies the degree to which the system compresses the content. + - Higher compression levels cause the compression process to be slower. + - Valid values are between 1 (least compression and fastest) to 9 (most + compression and slowest). + choices: + - 1 + - 2 + - 3 + - 4 + - 5 + - 6 + - 7 + - 8 + - 9 + gzip_memory_level: + description: + - Number of kilobytes of memory that the system uses for internal compression + buffers when compressing a server response. + choices: + - 1 + - 2 + - 4 + - 8 + - 16 + - 32 + - 64 + - 128 + - 256 + gzip_window_size: + description: + - Number of kilobytes in the window size that the system uses when compressing + a server response. + choices: + - 1 + - 2 + - 4 + - 8 + - 16 + - 32 + - 64 + - 128 + 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: + - Tim Rupp (@caphrim007) +''' + +EXAMPLES = r''' +- name: Create an HTTP compression profile + bigip_profile_http_compression: + name: profile1 + description: Custom HTTP Compression Profile + buffer_size: 131072 + gzip_level: 6 + gzip_memory_level: 16k + gzip_window_size: 64k + provider: + password: secret + server: lb.mydomain.com + user: admin + delegate_to: localhost +''' + +RETURN = r''' +description: + description: The new description of the resource. + returned: changed + type: string + sample: My custom profile +buffer_size: + description: The new buffer size of the profile. + returned: changed + type: int + sample: 4096 +gzip_memory_level: + description: The new GZIP memory level, in KB, of the profile. + returned: changed + type: int + sample: 16 +gzip_level: + description: The new GZIP level of the profile. Smaller is less compression. + returned: changed + type: int + sample: 2 +gzip_window_size: + description: The new GZIP window size, in KB, of the profile. + returned: changed + type: int + sample: 64 +''' + +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 f5_argument_spec + from library.module_utils.network.f5.common import exit_json + from library.module_utils.network.f5.common import fail_json + from library.module_utils.network.f5.common import transform_name +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 f5_argument_spec + from ansible.module_utils.network.f5.common import exit_json + from ansible.module_utils.network.f5.common import fail_json + from ansible.module_utils.network.f5.common import transform_name + + +class Parameters(AnsibleF5Parameters): + api_map = { + 'bufferSize': 'buffer_size', + 'defaultsFrom': 'parent', + 'gzipMemoryLevel': 'gzip_memory_level', + 'gzipLevel': 'gzip_level', + 'gzipWindowSize': 'gzip_window_size', + } + + api_attributes = [ + 'description', + 'bufferSize', + 'defaultsFrom', + 'gzipMemoryLevel', + 'gzipLevel', + 'gzipWindowSize', + ] + + returnables = [ + 'description', + 'buffer_size', + 'gzip_memory_level', + 'gzip_level', + 'gzip_window_size', + ] + + updatables = [ + 'description', + 'buffer_size', + 'gzip_memory_level', + 'gzip_level', + 'gzip_window_size', + ] + + +class ApiParameters(Parameters): + @property + def description(self): + if self._values['description'] in [None, 'none']: + return None + return self._values['description'] + + @property + def gzip_memory_level(self): + if self._values['gzip_memory_level'] is None: + return None + return self._values['gzip_memory_level'] / 1024 + + @property + def gzip_window_size(self): + if self._values['gzip_window_size'] is None: + return None + return self._values['gzip_window_size'] / 1024 + + +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 + + +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): + @property + def gzip_memory_level(self): + if self._values['gzip_memory_level'] is None: + return None + return self._values['gzip_memory_level'] * 1024 + + @property + def gzip_window_size(self): + if self._values['gzip_window_size'] is None: + return None + return self._values['gzip_window_size'] * 1024 + + +class ReportableChanges(Changes): + @property + def gzip_memory_level(self): + if self._values['gzip_memory_level'] is None: + return None + return self._values['gzip_memory_level'] / 1024 + + @property + def gzip_window_size(self): + if self._values['gzip_window_size'] is None: + return None + return self._values['gzip_window_size'] / 1024 + + +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" + ) + + +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 should_update(self): + result = self._update_changed_options() + if result: + 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 exists(self): + uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http-compression/{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 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 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 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/http-compression/".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) + + def update_on_device(self): + params = self.changes.api_params() + uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http-compression/{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 absent(self): + if self.exists(): + return self.remove() + return False + + def remove_from_device(self): + uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http-compression/{2}".format( + self.client.provider['server'], + self.client.provider['server_port'], + transform_name(self.want.partition, self.want.name) + ) + resp = self.client.api.delete(uri) + if resp.status == 200: + return True + raise F5ModuleError(resp.content) + + def read_current_from_device(self): + uri = "https://{0}:{1}/mgmt/tm/ltm/profile/http-compression/{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(), + buffer_size=dict(type='int'), + description=dict(), + gzip_level=dict( + type='int', + choices=[1, 2, 3, 4, 5, 6, 7, 8, 9] + ), + gzip_memory_level=dict( + type='int', + choices=[1, 2, 4, 8, 16, 32, 64, 128, 256] + ), + gzip_window_size=dict( + type='int', + choices=[1, 2, 4, 8, 16, 32, 64, 128] + ), + 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, + ) + + try: + client = F5RestClient(**module.params) + mm = ModuleManager(module=module, client=client) + results = mm.exec_module() + exit_json(module, results, client) + except F5ModuleError as ex: + fail_json(module, ex, client) + + +if __name__ == '__main__': + main() diff --git a/test/units/modules/network/f5/test_bigip_profile_http_compression.py b/test/units/modules/network/f5/test_bigip_profile_http_compression.py new file mode 100644 index 0000000000..000c4ded9a --- /dev/null +++ b/test/units/modules/network/f5/test_bigip_profile_http_compression.py @@ -0,0 +1,129 @@ +# -*- 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 pytest +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.modules.bigip_profile_http_compression import ApiParameters + from library.modules.bigip_profile_http_compression import ModuleParameters + from library.modules.bigip_profile_http_compression import ModuleManager + from library.modules.bigip_profile_http_compression 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_profile_http_compression import ApiParameters + from ansible.modules.network.f5.bigip_profile_http_compression import ModuleParameters + from ansible.modules.network.f5.bigip_profile_http_compression import ModuleManager + from ansible.modules.network.f5.bigip_profile_http_compression 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( + name='foo', + parent='bar', + description='description1', + buffer_size=1024, + gzip_memory_level=64, + gzip_level=2, + gzip_window_size=128 + ) + + p = ModuleParameters(params=args) + assert p.name == 'foo' + assert p.parent == '/Common/bar' + assert p.description == 'description1' + assert p.buffer_size == 1024 + assert p.gzip_memory_level == 64 + assert p.gzip_level == 2 + assert p.gzip_window_size == 128 + + def test_api_parameters(self): + p = ApiParameters(params=load_fixture('load_ltm_profile_http_compression_1.json')) + assert p.description == 'my profile' + assert p.buffer_size == 4096 + assert p.gzip_memory_level == 8 + assert p.gzip_level == 1 + assert p.gzip_window_size == 16 + + +@patch('ansible.module_utils.f5_utils.AnsibleF5Client._get_mgmt_root', + return_value=True) +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', + parent='bar', + description='description1', + buffer_size=1024, + gzip_memory_level=64, + gzip_level=2, + gzip_window_size=128, + 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