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 requests
   8 #import ast
   9
  10 # set this to localhost for now
  11 # this is correct for son-emu started outside of a container or as a container with net=host
  12 #TODO prometheus sdk DB is started outside of emulator, place these globals in an external SDK config file?
  13 prometheus_ip = '127.0.0.1'
  14 prometheus_port = '9090'
  15 prometheus_REST_api = 'http://{0}:{1}'.format(prometheus_ip, prometheus_port)
  16
  17
  18 def query_Prometheus(query):
  19     url = prometheus_REST_api + '/' + 'api/v1/query?query=' + query
  20     # logging.info('query:{0}'.format(url))
  21     #req = urllib2.Request(url)
  22     req = requests.get(url)
  23     #ret = urllib2.urlopen(req).read()
  24     #ret = ast.literal_eval(ret)
  25     ret = req.json()
  26     if ret['status'] == 'success':
  27         # logging.info('return:{0}'.format(ret))
  28         try:
  29             ret = ret['data']['result'][0]['value']
  30         except:
  31             ret = None
  32     else:
  33         ret = None
  34     return ret