test/tools/clustering/cluster-monitor/rejoin.py

   1 #!/usr/bin/python
   2 """
   3 Cluster Rejoin Tool
   4 Author: Phillip Shea
   5 Updated: 2015-May-07
   6
   7 This tool rejoins any isolated controllers to the cluster.
   8
   9 A file named 'cluster.json' containing a list of the IP addresses and
  10 credentials of the controllers is required. It resides in the same
  11 directory as monitor.py.
  12
  13 The file should look like this:
  14
  15     {
  16         "cluster": {
  17             "controllers": [
  18                 "172.17.10.93",
  19                 "172.17.10.94",
  20                 "172.17.10.95"
  21             ],
  22             "user": "username",
  23             "pass": "password"
  24         }
  25     }
  26
  27 Usage:python rejoin.py
  28  """
  29
  30 import sys
  31 sys.path.append('../../../csit/libraries')
  32 import UtilLibrary
  33 import json
  34
  35 try:
  36     with open('cluster.json') as cluster_file:
  37         data = json.load(cluster_file)
  38 except:
  39     print str(sys.exc_info())
  40     print "unable to open the file cluster.json"
  41     exit(1)
  42 try:
  43     cluster_list = data["cluster"]["controllers"]
  44     user_name = data["cluster"]["user"]
  45     user_pass = data["cluster"]["pass"]
  46 except:
  47     print str(sys.exc_info())
  48     print 'Error reading the file cluster.json'
  49     exit(1)
  50
  51 print UtilLibrary.flush_iptables(cluster_list, user_name, user_pass)