add connection error catch when connecting prometheus

(cherry picked from commit e45aa8ab578a32ed65966ce1cab4e1850a844ecc)

0002-add-error-catch-when-connect-pro.patch

@@ -0,0 +1,41 @@
+From dfd2f38fd34d300448ed9231377fcf4a0be7d367 Mon Sep 17 00:00:00 2001
+From: zhu-yuncheng <zhuyuncheng@huawei.com>
+Date: Sat, 23 Dec 2023 17:43:18 +0800
+Subject: [PATCH] add httpconnection error catch when connect prometheus
+
+---
+ vulcanus/database/proxy.py | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+diff --git a/vulcanus/database/proxy.py b/vulcanus/database/proxy.py
+index 94e9883..5753066 100644
+--- a/vulcanus/database/proxy.py
++++ b/vulcanus/database/proxy.py
+@@ -16,9 +16,9 @@ Author:
+ Description: Database proxy
+ """
+ from functools import wraps
+-import math
+ from datetime import datetime
+ from urllib3.exceptions import LocationValueError
++from requests.exceptions import ConnectionError
+ 
+ import sqlalchemy
+ from sqlalchemy.exc import SQLAlchemyError, DisconnectionError
+@@ -543,8 +543,12 @@ class PromDbProxy(DataBaseProxy):
+         Returns:
+             bool: connect succeed or fail
+         """
+-
+-        return self._prom.check_prometheus_connection()
++        connected = False
++        try:
++            connected = self._prom.check_prometheus_connection()
++        except ConnectionError as error:
++            LOGGER.error(error)
++        return connected
+ 
+     def query(self, host, time_range, metric, label_config=None):
+         """
+-- 
+Gitee

aops-vulcanus.spec

@@ -1,12 +1,12 @@
 Name:		aops-vulcanus
 Version:	v1.3.1
-Release:	2
+Release:	3
 Summary:	A basic tool libraries of aops, including logging, configure and response, etc.
 License:	MulanPSL2
 URL:		https://gitee.com/openeuler/%{name}
 Source0:	%{name}-%{version}.tar.gz
 Patch0001:	0001-update-ValidateRules.patch
-
+Patch0002:	0002-add-error-catch-when-connect-pro.patch	
 	
 
 BuildRequires:  python3-setuptools
@@ -62,6 +62,9 @@ cp -r scripts %{buildroot}/opt/aops/
 
 
 %changelog
+* Sat Dec 23 2023 zhuyuncheng<zhuyuncheng@huawei.com> - v1.3.1-3
+- add Http connection error catch when connecting to prometheus
+
 * Thu Dec 21 2023 wenxin<wenxin32@foxmail.com> - v1.3.1-2
 - add IPV4 validation method to ValidateRules