fix: roll out rotated traefik certificate secrets

tests/unit/test_warm_reconcile.py

@@ -9,6 +9,7 @@ from __future__ import annotations
 
 import os
 import sys
+from types import SimpleNamespace
 
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", ".."))
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "..", "runner"))
@@ -115,6 +116,20 @@ def test_traefik_spec_is_stateless_with_setup():
     assert "setup" not in wr.SPECS["keycloak"]
 
 
+def test_traefik_certificate_rollout_detects_active_secret_version(monkeypatch):
+    stack = "traefik_ci_commoninternet_net"
+    monkeypatch.setattr(wr.lifecycle, "_stack_name", lambda _domain: stack)
+    monkeypatch.setattr(
+        wr,
+        "_run",
+        lambda *_args, **_kwargs: SimpleNamespace(
+            stdout=f"{stack}_ssl_cert_vnew {stack}_ssl_key_vnew"
+        ),
+    )
+    assert not wr._traefik_requires_certificate_rollout("traefik.ci.commoninternet.net", "vnew")
+    assert wr._traefik_requires_certificate_rollout("traefik.ci.commoninternet.net", "vold")
+
+
 def test_manual_migration_markers():
     assert wr.notes_flag_manual_migration("This release requires a MANUAL MIGRATION of the DB.")
     assert wr.notes_flag_manual_migration("Breaking change: action required before upgrade.")