OpenSSHKeyFile k=new OpenSSHKeyFile();
k.init(new File($HOME+"/.haruhi/o2key.pem"));
ssh.addHostKeyVerifier(new PromiscuousVerifier());
ssh.connect(ipAddress);
ssh.authPublickey("ubuntu",k);
final Session session = ssh.startSession();
try {
final Session.Command cmd = session.exec("ls -a");
System.out.println(IOUtils.readFully(cmd.getInputStream()).toString());