src/emuvim/cli/prometheus.py

   1 """
   2 Prometheus API helper functions
   3 (c) 2016 by Steven Van Rossem <steven.vanrossem@intec.ugent.be>
   4 """
   5
   6 import urllib2
   7 import ast
   8
   9 # set this to localhost for now
  10 # this is correct for son-emu started outside of a container or as a container with net=host
  11 prometheus_ip = '127.0.0.1'
  12 prometheus_port = '9090'
  13 prometheus_REST_api = 'http://{0}:{1}'.format(prometheus_ip, prometheus_port)
  14
  15
  16 def query_Prometheus(query):
  17     url = prometheus_REST_api + '/' + 'api/v1/query?query=' + query
  18     # logging.info('query:{0}'.format(url))
  19     req = urllib2.Request(url)
  20     ret = urllib2.urlopen(req).read()
  21     ret = ast.literal_eval(ret)
  22     if ret['status'] == 'success':
  23         # logging.info('return:{0}'.format(ret))
  24         try:
  25             ret = ret['data']['result'][0]['value']
  26         except:
  27             ret = None
  28     else:
  29         ret = None
  30     return ret