Add Hetzner RSS status check (#673)

Author: codingjoe

docs/checks.md

@@ -74,6 +74,8 @@ pip install django-health-check[rss,atlassian]
 
 ::: health_check.contrib.rss.Heroku
 
+::: health_check.contrib.rss.Hetzner
+
 ::: health_check.contrib.atlassian.PlatformSh
 
 ::: health_check.contrib.atlassian.Render

health_check/contrib/rss.py

@@ -182,6 +182,28 @@ class Heroku(Feed):
     )
 
 
+@dataclasses.dataclass
+class Hetzner(Feed):
+    """
+    Check Hetzner platform status via their public ATOM status feed.
+
+    Args:
+        timeout: Request timeout duration.
+        max_age: Maximum age for an incident to be considered active.
+
+    """
+
+    timeout: datetime.timedelta = dataclasses.field(
+        default=datetime.timedelta(seconds=10), repr=False
+    )
+    max_age: datetime.timedelta = dataclasses.field(
+        default=datetime.timedelta(hours=8), repr=False
+    )
+    feed_url: str = dataclasses.field(
+        default="https://status.hetzner.com/en.atom", init=False, repr=False
+    )
+
+
 @dataclasses.dataclass
 class Azure(Feed):
     """

tests/contrib/test_rss.py

@@ -6,15 +6,15 @@
 
 import pytest
 
-pytest.importorskip("httpx")
+httpx = pytest.importorskip("httpx")
 
-from health_check.contrib.rss import (
+from health_check.contrib.rss import (  # noqa: E402
     AWS,
     Azure,
     GoogleCloud,
     Heroku,
 )
-from health_check.exceptions import ServiceUnavailable, ServiceWarning
+from health_check.exceptions import ServiceUnavailable, ServiceWarning  # noqa: E402
 
 
 class TestAWS:
@@ -437,6 +437,22 @@ def test_feed_url_format(self):
         assert check.feed_url == "https://status.heroku.com/feed"
 
 
+class TestHetzner:
+    """Test Hetzner platform status health check."""
+
+    @pytest.mark.asyncio
+    async def test_feed_url(self):
+        """Verify correct feed URL for Hetzner."""
+        from health_check.contrib.rss import Hetzner
+
+        check = Hetzner()
+        async with httpx.AsyncClient() as client:
+            response = await client.get(
+                check.feed_url, headers={"User-Agent": "django-health-check"}
+            )
+        assert response.status_code != 404, "Hetzner feed URL is not valid"
+
+
 class TestAzure:
     """Test Azure platform status health check."""