Cannot use an S3 compatible Server like Ceph Radosgw

[deguich]

Consider use host_base parameter of s3cfg file when initalize s3.Client.

I hardcode this to suit my case :

function setup(secretAccessKey, accessKeyId) {
  var maxSockets = parseInt(args['max-sockets'], 10);
  http.globalAgent.maxSockets = maxSockets;
  https.globalAgent.maxSockets = maxSockets;
  client = s3.createClient({
    s3Options: {
      accessKeyId: accessKeyId,
      secretAccessKey: secretAccessKey,
      sslEnabled: !args.insecure,
      endpoint: 'cephgw.my.com',
      region: args.region,
    },
  });
  var cmd = args._.shift();
  var fn = fns[cmd];
  if (!fn) fn = cmdHelp;
  fn();
}