private void logIntoIp(String ipAddress) throws IOException, InterruptedException {
final SSHClient ssh = new SSHClient();
OpenSSHKeyFile k = new OpenSSHKeyFile();
k.init(new File(dotHaruhi, keyPairName + ".pem"));
ssh.addHostKeyVerifier(new PromiscuousVerifier());
ssh.connect(ipAddress);
try {
ssh.authPublickey(clusterUsername, k);
Session that = ssh.startSession();