Adds firewall global rules module (#47789)

This module allows the user to change global rules in AFM firewalls

lib/ansible/modules/network/f5/bigip_firewall_global_rules.py

@@ -0,0 +1,388 @@
+#!/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_firewall_global_rules
+short_description: Manage AFM global rule settings on BIG-IP
+description:
+  - Configures the global network firewall rules. These firewall rules are
+    applied to all packets except those going through the management
+    interface. They are applied first, before any firewall rules for the
+    packet's virtual server, route domain, and/or self IP.
+version_added: 2.8
+options:
+  enforced_policy:
+    description:
+      - Specifies an enforced firewall policy.
+      - C(enforced_policy) rules are enforced globally.
+  service_policy:
+    description:
+      - Specifies a service policy that would apply to traffic globally.
+      - The service policy is applied to all flows, provided if there are
+        no other context specific service policy configuration that
+        overrides the global service policy. For example, when a service
+        policy is configured both at a global level, as well as on a
+        firewall rule, and a flow matches the rule, the more specific
+        service policy configuration in the rule will override the service
+        policy setting at the global level.
+      - The service policy associated here can be created using the
+        C(bigip_service_policy) module.
+  staged_policy:
+    description:
+      - Specifies a staged firewall policy.
+      - C(staged_policy) rules are not enforced while all the visibility
+        aspects namely statistics, reporting and logging function as if
+        the staged-policy rules were enforced globally.
+  description:
+    description:
+      - Description for the global list of firewall rules.
+extends_documentation_fragment: f5
+author:
+  - Tim Rupp (@caphrim007)
+'''
+
+EXAMPLES = r'''
+- name: Change enforced policy in AFM global rules
+  bigip_firewall_global_rules:
+    enforced_policy: enforcing1
+    provider:
+      password: secret
+      server: lb.mydomain.com
+      user: admin
+  delegate_to: localhost
+'''
+
+RETURN = r'''
+enforced_policy:
+  description: The new global Enforced Policy.
+  returned: changed
+  type: string
+  sample: /Common/enforced1
+service_policy:
+  description: The new global Service Policy.
+  returned: changed
+  type: string
+  sample: /Common/service1
+staged_policy:
+  description: The new global Staged Policy.
+  returned: changed
+  type: string
+  sample: /Common/staged1
+description:
+  description: The new description.
+  returned: changed
+  type: string
+  sample: My description
+'''
+
+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.compare import cmp_str_with_none
+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.compare import cmp_str_with_none
+
+
+class Parameters(AnsibleF5Parameters):
+    api_map = {
+        'enforcedPolicy': 'enforced_policy',
+        'servicePolicy': 'service_policy',
+        'stagedPolicy': 'staged_policy',
+    }
+
+    api_attributes = [
+        'enforcedPolicy',
+        'servicePolicy',
+        'stagedPolicy',
+        'description',
+    ]
+
+    returnables = [
+        'enforced_policy',
+        'service_policy',
+        'staged_policy',
+        'description',
+    ]
+
+    updatables = [
+        'enforced_policy',
+        'service_policy',
+        'staged_policy',
+        'description',
+    ]
+
+
+class ApiParameters(Parameters):
+    @property
+    def description(self):
+        if self._values['description'] in [None, 'none']:
+            return None
+        return self._values['description']
+
+
+class ModuleParameters(Parameters):
+    @property
+    def enforced_policy(self):
+        if self._values['enforced_policy'] is None:
+            return None
+        if self._values['enforced_policy'] in ['', 'none']:
+            return ''
+        return fq_name(self.partition, self._values['enforced_policy'])
+
+    @property
+    def service_policy(self):
+        if self._values['service_policy'] is None:
+            return None
+        if self._values['service_policy'] in ['', 'none']:
+            return ''
+        return fq_name(self.partition, self._values['service_policy'])
+
+    @property
+    def staged_policy(self):
+        if self._values['staged_policy'] is None:
+            return None
+        if self._values['staged_policy'] in ['', 'none']:
+            return ''
+        return fq_name(self.partition, self._values['staged_policy'])
+
+    @property
+    def description(self):
+        if self._values['description'] is None:
+            return None
+        elif self._values['description'] in ['none', '']:
+            return ''
+        return self._values['description']
+
+
+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):
+    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 description(self):
+        return cmp_str_with_none(self.want.description, self.have.description)
+
+    @property
+    def enforced_policy(self):
+        return cmp_str_with_none(self.want.enforced_policy, self.have.enforced_policy)
+
+    @property
+    def staged_policy(self):
+        return cmp_str_with_none(self.want.staged_policy, self.have.staged_policy)
+
+    @property
+    def service_policy(self):
+        return cmp_str_with_none(self.want.service_policy, self.have.service_policy)
+
+
+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):
+        result = dict()
+
+        changed = self.present()
+
+        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):
+        return self.update()
+
+    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.changes.api_params()
+        uri = "https://{0}:{1}/mgmt/tm/security/firewall/global-rules".format(
+            self.client.provider['server'],
+            self.client.provider['server_port']
+        )
+        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 read_current_from_device(self):
+        uri = "https://{0}:{1}/mgmt/tm/security/firewall/global-rules".format(
+            self.client.provider['server'],
+            self.client.provider['server_port']
+        )
+        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(
+            enforced_policy=dict(),
+            service_policy=dict(),
+            staged_policy=dict(),
+            description=dict(),
+        )
+        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()