Vendor middleware_automation.keycloak collection

Needed for keycloak_authentication_v2, to manage Keycloak
authentication flows (e.g. the CCCHH browser flow) as YAML.
Chosen over community.general's own copy of the module (deprecated in
favor of this collection, and limited to 4 sub-flow levels there vs.
10 here).

ansible_collections/middleware_automation/keycloak/plugins/doc_fragments/keycloak.py

@@ -0,0 +1,81 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2017, Eike Frost <ei@kefro.st>
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from __future__ import (absolute_import, division, print_function)
+from __future__ import annotations
+__metaclass__ = type
+
+
+class ModuleDocFragment(object):
+
+    # Standard documentation fragment
+    DOCUMENTATION = r'''
+options:
+    auth_keycloak_url:
+        description:
+            - URL to the Keycloak instance.
+        type: str
+        required: true
+        aliases:
+          - url
+
+    auth_client_id:
+        description:
+            - OpenID Connect I(client_id) to authenticate to the API with.
+        type: str
+        default: admin-cli
+
+    auth_realm:
+        description:
+            - Keycloak realm name to authenticate to for API access.
+        type: str
+
+    auth_client_secret:
+        description:
+            - Client Secret to use in conjunction with I(auth_client_id) (if required).
+        type: str
+
+    auth_username:
+        description:
+            - Username to authenticate for API access with.
+        type: str
+        aliases:
+          - username
+
+    auth_password:
+        description:
+            - Password to authenticate for API access with.
+        type: str
+        aliases:
+          - password
+
+    token:
+        description:
+            - Authentication token for Keycloak API.
+        type: str
+
+    refresh_token:
+        description:
+            - Authentication refresh token for Keycloak API.
+        type: str
+
+    validate_certs:
+        description:
+            - Verify TLS certificates (do not disable this in production).
+        type: bool
+        default: true
+
+    connection_timeout:
+        description:
+            - Controls the HTTP connections timeout period (in seconds) to Keycloak API.
+        type: int
+        default: 10
+    http_agent:
+        description:
+            - Configures the HTTP User-Agent header.
+        type: str
+        default: Ansible
+'''