org.aegis.app.sample.ec2.windows.WindowsInstanceStarter.java Source code

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Here is the source code for org.aegis.app.sample.ec2.windows.WindowsInstanceStarter.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.aegis.app.sample.ec2.windows;

import com.google.common.base.Predicate;
import com.google.common.base.Strings;
import com.google.common.collect.Iterables;
import org.jclouds.aws.ec2.AWSEC2Client;
import org.jclouds.compute.ComputeService;
import org.jclouds.compute.ComputeServiceContext;
import org.jclouds.compute.RunNodesException;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.domain.Template;
import org.jclouds.domain.LoginCredentials;
import org.jclouds.ec2.compute.domain.PasswordDataAndPrivateKey;
import org.jclouds.ec2.compute.functions.WindowsLoginCredentialsFromEncryptedData;
import org.jclouds.ec2.domain.PasswordData;
import org.jclouds.logging.Logger;
import org.jclouds.predicates.RetryablePredicate;

import javax.annotation.Nullable;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Set;
import java.util.concurrent.TimeUnit;

/**
 * FIXME
 */
public class WindowsInstanceStarter {
    private final Arguments arguments;
    private final Logger logger;
    private final ComputeServiceContext context;
    private final AWSEC2Client ec2Client;
    private final ComputeService computeService;

    public WindowsInstanceStarter(Arguments arguments, ComputeServiceContext context) {
        this.arguments = arguments;
        this.context = context;

        logger = context.getUtils().getLoggerFactory().getLogger(WindowsInstanceStarter.class.getName());
        ec2Client = AWSEC2Client.class.cast(context.getProviderSpecificContext().getApi());
        computeService = context.getComputeService();
    }

    public void run() {
        final String region = arguments.getRegion();

        // Build a template
        Template template = computeService.templateBuilder().locationId(region)
                .imageNameMatches(arguments.getImageNamePattern()).hardwareId(arguments.getInstanceType()).build();
        logger.info("Selected AMI is: %s", template.getImage().toString());
        template.getOptions().inboundPorts(3389);

        // Create the node
        logger.info("Creating node and waiting for it to become available");
        Set<? extends NodeMetadata> nodes = null;
        try {
            nodes = computeService.createNodesInGroup("basic-ami", 1, template);
        } catch (RunNodesException e) {
            logger.error(e, "Unable to start nodes; aborting");
            return;
        }
        NodeMetadata node = Iterables.getOnlyElement(nodes);

        // Wait for the administrator password
        logger.info("Waiting for administrator password to become available");

        // This predicate will call EC2's API to get the Windows Administrator
        // password, and returns true if there is password data available.
        Predicate<String> passwordReady = new Predicate<String>() {
            @Override
            public boolean apply(@Nullable String s) {
                if (Strings.isNullOrEmpty(s))
                    return false;
                PasswordData data = ec2Client.getWindowsServices().getPasswordDataInRegion(region, s);
                if (data == null)
                    return false;
                return !Strings.isNullOrEmpty(data.getPasswordData());
            }
        };

        // Now wait, using RetryablePredicate
        final int maxWait = 600;
        final int period = 10;
        final TimeUnit timeUnit = TimeUnit.SECONDS;
        RetryablePredicate<String> passwordReadyRetryable = new RetryablePredicate<String>(passwordReady, maxWait,
                period, timeUnit);
        boolean isPasswordReady = passwordReadyRetryable.apply(node.getProviderId());
        if (!isPasswordReady) {
            logger.error("Password is not ready after %s %s - aborting and shutting down node", maxWait,
                    timeUnit.toString());
            computeService.destroyNode(node.getId());
            return;
        }

        // Now we can get the password data, decrypt it, and get a LoginCredentials instance
        PasswordDataAndPrivateKey dataAndKey = new PasswordDataAndPrivateKey(
                ec2Client.getWindowsServices().getPasswordDataInRegion(region, node.getProviderId()),
                node.getCredentials().getPrivateKey());
        WindowsLoginCredentialsFromEncryptedData f = context.getUtils().getInjector()
                .getInstance(WindowsLoginCredentialsFromEncryptedData.class);
        LoginCredentials credentials = f.apply(dataAndKey);

        // Send to the log the details you need to log in to the instance with RDP
        String publicIp = Iterables.getFirst(node.getPublicAddresses(), null);
        logger.info("IP address: %s", publicIp);
        logger.info("Login name: %s", credentials.getUser());
        logger.info("Password:   %s", credentials.getPassword());

        // Wait for Enter on the console
        logger.info("Hit Enter to shut down the node.");
        InputStreamReader converter = new InputStreamReader(System.in);
        BufferedReader in = new BufferedReader(converter);
        try {
            in.readLine();
        } catch (IOException e) {
            logger.error(e, "IOException while reading console input");
        }

        // Tidy up
        logger.info("Shutting down");
        computeService.destroyNode(node.getId());
    }
}