/**
 * Called when a new {@link EC2Computer} object is introduced (such as when Hudson started, or when
 * a new agent is added.)
 *
 * When Jenkins has just started, we don't want to spin up all the instances, so we only start if
 * the EC2 instance is already running
 */
@Override
public void start(EC2Computer c) {
    //Jenkins is in the process of starting up
    if (Jenkins.get().getInitLevel() != InitMilestone.COMPLETED) {
        InstanceState state = null;
        try {
            state = c.getState();
        } catch (AmazonClientException | InterruptedException | NullPointerException e) {
            LOGGER.log(Level.FINE, "Error getting EC2 instance state for " + c.getName(), e);
        }
        if (!(InstanceState.PENDING.equals(state) || InstanceState.RUNNING.equals(state))) {
            LOGGER.info("Ignoring start request for " + c.getName()
                    + " during Jenkins startup due to EC2 instance state of " + state);
            return;
            }
    }


    LOGGER.info("Start requested for " + c.getName());
    c.connect(false);
}