feat: add support for Hetzner API (#743)

##### SUMMARY

Add support the Hetzner API. Users can override the Hetzner API
endpoint.

plugins/doc_fragments/hcloud.py

@@ -10,24 +10,30 @@ class ModuleDocFragment:
 options:
   api_token:
     description:
-      - The API Token for the Hetzner Cloud.
+      - The token for the Hetzner Cloud API.
       - You can also set this option by using the C(HCLOUD_TOKEN) environment variable.
     required: True
     type: str
   api_endpoint:
     description:
-      - The API Endpoint for the Hetzner Cloud.
+      - The endpoint for the Hetzner Cloud API.
       - You can also set this option by using the C(HCLOUD_ENDPOINT) environment variable.
     default: https://api.hetzner.cloud/v1
     type: str
     aliases: [endpoint]
+  api_endpoint_hetzner:
+    description:
+      - The endpoint for the Hetzner API.
+      - You can also set this option by using the C(HETZNER_ENDPOINT) environment variable.
+    default: https://api.hetzner.com/v1
+    type: str
 
 requirements:
   - python-dateutil >= 2.7.5
   - requests >=2.20
 
 seealso:
-  - name: Documentation for Hetzner Cloud API
-    description: Complete reference for the Hetzner Cloud API.
+  - name: Documentation for Hetzner APIs
+    description: Complete reference for the Hetzner APIs.
     link: https://docs.hetzner.cloud
 """

plugins/module_utils/hcloud.py

@@ -103,6 +103,7 @@ class AnsibleHCloud:
         self.client = Client(
             token=self.module.params["api_token"],
             api_endpoint=self.module.params["api_endpoint"],
+            api_endpoint_hetzner=self.module.params["api_endpoint_hetzner"],
             application_name="ansible-module",
             application_version=version,
             # Total waiting time before timeout is > 117.0
@@ -163,6 +164,11 @@ class AnsibleHCloud:
                 "default": "https://api.hetzner.cloud/v1",
                 "aliases": ["endpoint"],
             },
+            "api_endpoint_hetzner": {
+                "type": "str",
+                "fallback": (env_fallback, ["HETZNER_ENDPOINT"]),
+                "default": "https://api.hetzner.com/v1",
+            },
         }
 
     def _prepare_result(self) -> dict[str, Any]: