Azure load balancer support (#26099)

* (wip) add partial loadbalancer module

* (wip) add ability to use a public ip for a load balancer

* fix shebang

* add backend address pool to load balancer

* remove unncessary error variable

* add probe support to load balancer

* add ability to add load distribution rule to load balancer

* add nat pool functionality to azure load balancer

* fix pep8 errors from sanity check

* add documentation for load balancer

* refactor imports

* fix license header copyright

* add facts module for azure load balancer

* fix ansible-test failures

* add integration tests for load balancer

* fix metadata version

* add complex integration test to azure_rm_loadbalancer

lib/ansible/modules/cloud/azure/azure_rm_loadbalancer_facts.py

@@ -0,0 +1,180 @@
+#!/usr/bin/python
+#
+# Copyright (c) 2016 Thomas Stringer, <tomstr@microsoft.com>
+#
+# This file is part of Ansible
+#
+# Ansible 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.
+#
+# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+
+ANSIBLE_METADATA = {'metadata_version': '1.1',
+                    'status': ['preview'],
+                    'supported_by': 'community'}
+
+DOCUMENTATION = '''
+---
+module: azure_rm_loadbalancer_facts
+
+version_added: "2.4"
+
+short_description: Get load balancer facts.
+
+description:
+    - Get facts for a specific load balancer or all load balancers.
+
+options:
+    name:
+        description:
+            - Limit results to a specific resource group.
+        required: false
+        default: null
+    resource_group:
+        description:
+            - The resource group to search for the desired load balancer
+        required: false
+        default: null
+    tags:
+        description:
+            - Limit results by providing a list of tags. Format tags as 'key' or 'key:value'.
+        required: false
+        default: null
+
+extends_documentation_fragment:
+    - azure
+
+author:
+    - "Thomas Stringer (@tstringer)"
+'''
+
+EXAMPLES = '''
+    - name: Get facts for one load balancer
+      azure_rm_loadbalancer_facts:
+        name: Testing
+        resource_group: TestRG
+
+    - name: Get facts for all load balancers
+      azure_rm_loadbalancer_facts:
+
+    - name: Get facts by tags
+      azure_rm_loadbalancer_facts:
+        tags:
+          - testing
+'''
+
+RETURN = '''
+azure_loadbalancers:
+    description: List of load balancer dicts.
+    returned: always
+    type: list
+'''
+
+from ansible.module_utils.azure_rm_common import AzureRMModuleBase
+
+try:
+    from msrestazure.azure_exceptions import CloudError
+    from azure.common import AzureHttpError
+except:
+    # handled in azure_rm_common
+    pass
+
+AZURE_OBJECT_CLASS = 'LoadBalancer'
+
+
+class AzureRMLoadBalancerFacts(AzureRMModuleBase):
+    """Utility class to get load balancer facts"""
+
+    def __init__(self):
+
+        self.module_args = dict(
+            name=dict(type='str'),
+            resource_group=dict(type='str'),
+            tags=dict(type='list')
+        )
+
+        self.results = dict(
+            changed=False,
+            ansible_facts=dict(
+                azure_loadbalancers=[]
+            )
+        )
+
+        self.name = None
+        self.resource_group = None
+        self.tags = None
+
+        super(AzureRMLoadBalancerFacts, self).__init__(
+            derived_arg_spec=self.module_args,
+            supports_tags=False,
+            facts_module=True
+        )
+
+    def exec_module(self, **kwargs):
+
+        for key in self.module_args:
+            setattr(self, key, kwargs[key])
+
+        self.results['ansible_facts']['azure_loadbalancers'] = (
+            self.get_item() if self.name
+            else self.list_items()
+        )
+
+        return self.results
+
+    def get_item(self):
+        """Get a single load balancer"""
+
+        self.log('Get properties for {}'.format(self.name))
+
+        item = None
+        result = []
+
+        try:
+            item = self.network_client.load_balancers.get(self.resource_group, self.name)
+        except CloudError:
+            pass
+
+        if item and self.has_tags(item.tags, self.tags):
+            result = [self.serialize_obj(item, AZURE_OBJECT_CLASS)]
+
+        return result
+
+    def list_items(self):
+        """Get all load balancers"""
+
+        self.log('List all load balancers')
+
+        try:
+            response = self.network_client.load_balancers.list()
+        except AzureHttpError as exc:
+            self.fail('Failed to list all items - {}'.format(str(exc)))
+
+        results = []
+        for item in response:
+            if self.has_tags(item.tags, self.tags):
+                results.append(self.serialize_obj(item, AZURE_OBJECT_CLASS))
+
+        return results
+
+
+def main():
+    """Main module execution code path"""
+
+    AzureRMLoadBalancerFacts()
+
+if __name__ == '__main__':
+    main()