Add new Redfish facts module to handle Dell-specific OEM extensions (#54360)

* Add new Redfish facts module to handle Dell-specific OEM extensions

- Extends the existing RedfishUtils class and leverages its methods

* Add timeout parameter

* Removed version_added for timeout paramater

lib/ansible/modules/remote_management/redfish/idrac_redfish_facts.py

@@ -0,0 +1,165 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2019 Dell EMC Inc.
+# GNU General Public License v3.0+ (see LICENSE or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+ANSIBLE_METADATA = {'status': ['preview'],
+                    'supported_by': 'community',
+                    'metadata_version': '1.1'}
+
+DOCUMENTATION = '''
+---
+module: idrac_redfish_facts
+version_added: "2.8"
+short_description: Manages servers through iDRAC using Dell Redfish APIs
+description:
+  - Builds Redfish URIs locally and sends them to remote iDRAC controllers to
+    get information back.
+  - For use with Dell iDRAC operations that require Redfish OEM extensions
+options:
+  category:
+    required: true
+    description:
+      - Category to execute on iDRAC controller
+  command:
+    required: true
+    description:
+      - List of commands to execute on iDRAC controller
+  baseuri:
+    required: true
+    description:
+      - Base URI of iDRAC controller
+  username:
+    required: true
+    description:
+      - User for authentication with iDRAC controller
+  password:
+    required: true
+    description:
+      - Password for authentication with iDRAC controller
+  timeout:
+    description:
+      - Timeout in seconds for URL requests to OOB controller
+    default: 10
+    type: int
+
+author: "Jose Delarosa (@jose-delarosa)"
+'''
+
+EXAMPLES = '''
+  - name: Get Manager attributes with a default of 20 seconds
+    idrac_redfish_command:
+      category: Manager
+      command: GetManagerAttributes
+      baseuri: "{{ baseuri }}"
+      username: "{{ username }}"
+      password: "{{ password }}"
+      timeout: 20
+'''
+
+RETURN = '''
+msg:
+    description: different results depending on task
+    returned: always
+    type: dict
+    sample: List of Manager attributes
+'''
+
+import re
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.redfish_utils import RedfishUtils, HEADERS
+from ansible.module_utils._text import to_native
+
+
+class IdracRedfishUtils(RedfishUtils):
+
+    def get_manager_attributes(self):
+        result = {}
+        manager_attributes = {}
+        key = "Attributes"
+
+        response = self.get_request(self.root_uri + self.manager_uri + "/" + key)
+        if response['ret'] is False:
+            return response
+        result['ret'] = True
+        data = response['data']
+
+        if key not in data:
+            return {'ret': False, 'msg': "Key %s not found" % key}
+
+        for attribute in data[key].items():
+            manager_attributes[attribute[0]] = attribute[1]
+        result["entries"] = manager_attributes
+        return result
+
+
+CATEGORY_COMMANDS_ALL = {
+    "Manager": ["GetManagerAttributes"]
+}
+
+
+def main():
+    result = {}
+    module = AnsibleModule(
+        argument_spec=dict(
+            category=dict(required=True),
+            command=dict(required=True, type='list'),
+            baseuri=dict(required=True),
+            username=dict(required=True),
+            password=dict(required=True, no_log=True),
+            timeout=dict(type='int', default=10)
+        ),
+        supports_check_mode=False
+    )
+
+    category = module.params['category']
+    command_list = module.params['command']
+
+    # admin credentials used for authentication
+    creds = {'user': module.params['username'],
+             'pswd': module.params['password']}
+
+    # timeout
+    timeout = module.params['timeout']
+
+    # Build root URI
+    root_uri = "https://" + module.params['baseuri']
+    rf_uri = "/redfish/v1/"
+    rf_utils = IdracRedfishUtils(creds, root_uri, timeout)
+
+    # Check that Category is valid
+    if category not in CATEGORY_COMMANDS_ALL:
+        module.fail_json(msg=to_native("Invalid Category '%s'. Valid Categories = %s" % (category, CATEGORY_COMMANDS_ALL.keys())))
+
+    # Check that all commands are valid
+    for cmd in command_list:
+        # Fail if even one command given is invalid
+        if cmd not in CATEGORY_COMMANDS_ALL[category]:
+            module.fail_json(msg=to_native("Invalid Command '%s'. Valid Commands = %s" % (cmd, CATEGORY_COMMANDS_ALL[category])))
+
+    # Organize by Categories / Commands
+
+    if category == "Manager":
+        # execute only if we find a Manager resource
+        result = rf_utils._find_managers_resource(rf_uri)
+        if result['ret'] is False:
+            module.fail_json(msg=to_native(result['msg']))
+
+        for command in command_list:
+            if command == "GetManagerAttributes":
+                result = rf_utils.get_manager_attributes()
+
+    # Return data back or fail with proper message
+    if result['ret'] is True:
+        del result['ret']
+        module.exit_json(ansible_facts=dict(redfish_facts=result))
+    else:
+        module.fail_json(msg=to_native(result['msg']))
+
+
+if __name__ == '__main__':
+    main()