Connect to main app socket on health check

test/io-tests/test_io.py

@@ -773,3 +773,20 @@ def test_admin_not_found(defaultenv):
     with run(env=defaultenv, adminport=freeport()) as postgrest:
         response = postgrest.admin.get("/notfound")
         assert response.status_code == 404
+
+
+def test_admin_health_dependent_on_main_app(defaultenv):
+    "Should get a failure from the admin health endpoint if the main app also fails"
+
+    env = {
+        **defaultenv,
+        "PGRST_ADMIN_SERVER_PORT": "3001",
+    }
+
+    with run(env=env, port=None) as postgrest:
+        # delete the unix socket to make the main app fail
+        os.remove(env["PGRST_SERVER_UNIX_SOCKET"])
+        response = requests.get(
+            f"http://localhost:{env['PGRST_ADMIN_SERVER_PORT']}/health"
+        )
+        assert response.status_code == 503