/*
* 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.jclouds.examples.ec2.spot;
import java.io.File;
import java.io.IOException;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.jclouds.aws.ec2.compute.AWSEC2TemplateOptions;
import org.jclouds.compute.ComputeService;
import org.jclouds.compute.ComputeServiceContextFactory;
import org.jclouds.compute.RunNodesException;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.domain.Template;
import org.jclouds.compute.predicates.NodePredicates;
import org.jclouds.net.IPSocket;
import org.jclouds.predicates.InetSocketAddressConnect;
import org.jclouds.predicates.RetryablePredicate;
import com.google.common.base.Charsets;
import com.google.common.collect.Iterables;
import com.google.common.io.Files;
/**
* This the Main class of an Application that demonstrates the use of the Amazon EC2 extensions by
* creating a small spot server.
*
* Usage is: java MainApp accesskeyid secretkey group command where command in create destroy
*/
public class MainApp {
public static int PARAMETERS = 4;
public static String INVALID_SYNTAX = "Invalid number of parameters. Syntax is: accesskeyid secretkey group command\nwhere command in create destroy";
public static void main(String[] args) {
if (args.length < PARAMETERS)
throw new IllegalArgumentException(INVALID_SYNTAX);
// Args
String accesskeyid = args[0];
String secretkey = args[1];
String group = args[2];
String command = args[3];
// Init
ComputeService compute = new ComputeServiceContextFactory().createContext("aws-ec2", accesskeyid, secretkey)
.getComputeService();
// wait up to 60 seconds for ssh to be accessible
RetryablePredicate<IPSocket> socketTester = new RetryablePredicate<IPSocket>(new InetSocketAddressConnect(), 60,
1, 1, TimeUnit.SECONDS);
try {
if (command.equals("create")) {
Template template = compute.templateBuilder().build();
template.getOptions().as(AWSEC2TemplateOptions.class)
// set the price as 3 cents/hr
.spotPrice(0.03f)
// authorize my ssh key
.authorizePublicKey(
Files.toString(new File(System.getProperty("user.home") + "/.ssh/id_rsa.pub"),
Charsets.UTF_8));
System.out.printf(">> running one spot node type(%s) with ami(%s) in group(%s)%n", template.getHardware()
.getProviderId(), template.getImage().getId(), group);
// run only a single node
NodeMetadata node = Iterables.getOnlyElement(compute.createNodesInGroup(group, 1, template));
System.out.printf("<< running node(%s)%n", node.getId());
IPSocket socket = new IPSocket(Iterables.get(node.getPublicAddresses(), 0), node.getLoginPort());
if (socketTester.apply(socket)) {
System.out.printf("<< socket ready [%s] node(%s)%n", socket, node.getId());
System.out.printf("ssh to node with the following command:%n ssh %s@%s%n",
node.getCredentials().identity, socket.getAddress());
System.exit(0);
} else {
System.out.printf("<< socket not ready [%s] node(%s)%n", socket, node.getId());
}
} else if (command.equals("destroy")) {
System.out.printf(">> destroying nodes in group(%s)%n", group);
Set<? extends NodeMetadata> destroyed = compute.destroyNodesMatching(NodePredicates.inGroup(group));
System.out.printf("<< destroyed(%d)%n", destroyed.size());
System.exit(0);
} else {
System.err.println(INVALID_SYNTAX);
System.exit(1);
}
} catch (RunNodesException e) {
System.err.println(e.getMessage());
for (NodeMetadata node : e.getNodeErrors().keySet())
compute.destroyNode(node.getId());
System.exit(1);
} catch (IOException e) {
System.err.println(e.getMessage());
System.exit(1);
} finally {
compute.getContext().close();
}
}
}