add munin check to tests, fixes #21661

tests/test_monitoring.py

+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+'''
+Criticality: Low
+Check that the monitoring graphs work.
+'''
+import os
+from datetime import datetime
+import sys
+import imp
+
+YELLOW = '\033[93m'
+GREEN = '\033[92m'
+RED = '\033[91m'
+DEF = '\033[0m'
+
+os.chdir(os.path.dirname(__file__))
+if not os.path.isfile('../utils.py'):
+    print('The envsetup configuration was not found.')
+    sys.exit(1)
+else:
+    es_utils = imp.load_source('es_utils', '../utils.py')
+    conf = es_utils.load_conf()
+
+
+def print_color(txt, col):
+    print('%s%s%s' % (col, txt, DEF))
+
+
+def print_yellow(txt):
+    print_color(txt, YELLOW)
+
+
+def print_red(txt):
+    print_color(txt, RED)
+
+
+def print_green(txt):
+    print_color(txt, GREEN)
+
+MUNIN_CHECK_PATH = "/var/cache/munin/www/localdomain/localhost.localdomain/cpu-day.png"
+
+def check_munin():
+    print('Checking if monitoring works')
+    mtime = os.path.getmtime(MUNIN_CHECK_PATH)
+    d = datetime.fromtimestamp(mtime)
+    now = datetime.now()
+    diff_seconds = (now - d).total_seconds
+    if diff_seconds > 3600:
+        print_red('Monitoring data is older than 1 hour and is probably not working.')
+        return 1
+    else:
+        print_green('Monitoring data is not older than 1 hour, everything seems fine.')
+        return 0
+
+if not os.path.exists(MUNIN_CHECK_PATH):
+    print_red('Munin data %s not found.' % MUNIN_CHECK_PATH)
+    sys.exit(1)
+
+rc = check_munin() 
+sys.exit(rc)