protected String buildUpCommand(Computer computer, String command) {
if (!computer.getRemoteAdmin().equals("root")) {
// command = computer.getRootCommandPrefix() + " " + command;
}
return command;
}
/**
* Connects to the given {@link Computer} via SSH and installs Java/Jenkins agent if necessary.
*/
@Override
public void launch(SlaveComputer _computer, TaskListener listener) {
Computer computer = (Computer) _computer;
PrintStream logger = listener.getLogger();
Date startDate = new Date();
logger.println("Start time: " + getUtcDate(startDate));
final Connection conn;
Connection cleanupConn = null;
boolean successful = false;
try {
conn = connectToSsh(computer, logger);
cleanupConn = conn;
logger.println("Authenticating as " + computer.getRemoteAdmin());
if (!conn.authenticateWithPublicKey(
computer.getRemoteAdmin(), computer.getNode().getPrivateKey().toCharArray(), "")) {
logger.println("Authentication failed");
throw new Exception("Authentication failed");
}
final SCPClient scp = conn.createSCPClient();
if (!runInitScript(computer, logger, conn, scp)) {
return;
}
if (!installJava(logger, conn)) {
return;
}
logger.println("Copying slave.jar");
scp.put(Jenkins.getInstance().getJnlpJars("slave.jar").readFully(), "slave.jar", "/tmp");
String jvmOpts = Util.fixNull(computer.getNode().getJvmOpts());
String launchString = "java " + jvmOpts + " -jar /tmp/slave.jar";
logger.println("Launching slave agent: " + launchString);
final Session sess = conn.openSession();
sess.execCommand(launchString);
computer.setChannel(
sess.getStdout(),
sess.getStdin(),
logger,
new Channel.Listener() {
@Override
public void onClosed(Channel channel, IOException cause) {
sess.close();
conn.close();
}
});
successful = true;
} catch (Exception e) {
LOGGER.log(Level.WARNING, e.getMessage(), e);
try {
Jenkins.getInstance().removeNode(computer.getNode());
} catch (Exception ee) {
ee.printStackTrace(logger);
}
e.printStackTrace(logger);
} finally {
Date endDate = new Date();
logger.println("Done setting up at: " + getUtcDate(endDate));
logger.println(
"Done in "
+ TimeUnit2.MILLISECONDS.toSeconds(endDate.getTime() - startDate.getTime())
+ " seconds");
if (cleanupConn != null && !successful) {
cleanupConn.close();
}
}
}