cluster_connect

#!/usr/bin/env python
import os, sys, getopt, urllib2, urllib
import json

from urllib2 import HTTPError

valid_bucket_types = ["membase", "memcached"]

def usage():
    print "usage: \n\
            -n <number of nodes>\n\
            -s <memory size (min 256) default: 256\n\
            -t <bucket type> (membase, memcached) default: membase\n\
            -r <num replicas> (max 3) default: 0 (Only for membase buckets!)\n"


class PasswordManager(urllib2.HTTPPasswordMgr):
    def __init__(self, username, password):
        self.auth = (username, password)

    def find_user_password(self, realm, authuri):
        return self.auth


def main():
    try:
        opts, args = getopt.getopt(sys.argv[1:], "n:t:s:r:")
    except getopt.GetoptError, err:
        print str(err)
        usage()
        sys.exit()
    nodes = 0
    buckettype = "membase"
    memsize = 256
    replicas = 0
    data_base_path = os.getcwd() + "/data"
    for o, a in opts:
        if o == "-n":
            nodes = a
        elif o == "-t":
            buckettype = a
        elif o == "-s":
            memsize = a
        elif o == "-r":
            replicas = a
        else:
            usage()
            sys.exit()
    if nodes == 0 or buckettype not in valid_bucket_types or \
            int(memsize) < 256 or int(replicas) > 3:
        usage()
        sys.exit()

    password_mgr = PasswordManager("Administrator", "asdasd")
    handler = urllib2.HTTPBasicAuthHandler(password_mgr)
    o = urllib2.build_opener(handler)

    print "Connecting " + str(nodes) + " nodes, bucket type " + buckettype + " mem size " + str(memsize) + " with " +\
           str(replicas) + " replica copies, password asdasd\n"

    o.open("http://127.0.0.1:8091/pools/default", "memoryQuota=" + str(memsize)).read()
    try:
        # creating an initial bucket using half the available RAM
        o.open("http://127.0.0.1:8091/controller/setupDefaultBucket", "bucketType=" + buckettype +
            "&ramQuotaMB=" + str(memsize/2) +
            "&replicaNumber=" + str(replicas)).read()
    except HTTPError, e:
        if e.code > 100 and e.code < 300:
            pass

    o.open("http://127.0.0.1:8091/settings/web", "port=SAME&username=Administrator&password=asdasd").read()
    for i in range(1, int(nodes)):
        port = 8091 + i
        print "Connecting node {0}".format(i)
        o.open("http://127.0.0.1:{0}/node/controller/doJoinCluster".format(port),
               "user=Administrator&password=asdasd&clusterMemberHostIp=127.0.0.1&clusterMemberPort=8091").read()
    print "Getting node list"
    info = json.loads(o.open("http://127.0.0.1:8091/nodeStatuses").read())
    print "Servers added, triggering rebalance."
    o.open("http://127.0.0.1:8091/controller/rebalance", urllib.urlencode(
            {'knownNodes': ",".join([info[k]['otpNode'] for k in info]),
             'ejectedNodes': ''})).read()

if __name__ == '__main__':
    main()