cluster_connect

#!/usr/bin/env python
import os, sys, getopt, urllib2, urllib, 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: 1 (Only for membase buckets!)\n\
            -i (don't index replicas) default: replica index enabled\n\
            -S <start index> default: 0"


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:iS:")
    except getopt.GetoptError, err:
        print str(err)
        usage()
        sys.exit()
    nodes = 0
    buckettype = "membase"
    memsize = 256
    replicas = 1
    replica_index = True
    start_index = 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
        elif o == "-i":
            replica_index = False
        elif o == "-S":
            start_index = int(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 {0} nodes, bucket type {1}, mem size {2} " \
        "with {3} replica copies, start index {4}, " \
        "password asdasd\n".format(nodes, buckettype,
                                   memsize, replicas, start_index)

    base_port = 9000 + start_index

    o.open("http://127.0.0.1:{0}/pools/default".format(base_port),
           "memoryQuota=" + str(memsize)).read()
    o.open("http://127.0.0.1:{0}/pools/default/buckets".format(base_port),
           "name=default" +
           "&authType=sasl" +
           "&saslPassword=" +
           "&bucketType=" + buckettype +
           "&ramQuotaMB=" + str(memsize) +
           "&replicaNumber=" + str(replicas) +
           "&replicaIndex=" + bool_request_value(replica_index)).read()
    o.open("http://127.0.0.1:{0}/settings/web".format(base_port),
           "port=SAME&username=Administrator&password=asdasd").read()

    for i in range(1, int(nodes)):
        port = base_port + 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={0}".format(base_port)).read()

    print "Getting node list"
    info = json.loads(o.open("http://127.0.0.1:{0}/nodeStatuses".format(base_port)).read())

    print "Servers added, triggering rebalance."
    o.open("http://127.0.0.1:{0}/controller/rebalance".format(base_port),
           urllib.urlencode(
            {'knownNodes': ",".join([info[k]['otpNode'] for k in info]),
             'ejectedNodes': ''})).read()

def bool_request_value(Value):
    return "1" if Value else "0"

if __name__ == '__main__':
    main()