alarms: handle ConnectionError in http_check

app/terraform/alarms/proxy_http_status.py

@@ -50,15 +50,16 @@ class AlarmProxyHTTPStatusAutomation(BaseAutomation):
                         AlarmState.OK,
                         f"{r.status_code} {r.reason}"
                     )
-            except (requests.ConnectionError, requests.Timeout):
-                set_http_alarm(
-                    proxy.id,
-                    AlarmState.CRITICAL,
-                    f"Connection failure")
             except requests.HTTPError:
                 set_http_alarm(
                     proxy.id,
                     AlarmState.CRITICAL,
                     f"{r.status_code} {r.reason}"
                 )
-        return True, []
+            except (requests.ConnectionError, requests.Timeout, ConnectionError) as e:
+                set_http_alarm(
+                    proxy.id,
+                    AlarmState.CRITICAL,
+                    repr(e)
+                )
+        return True, ""