@Override
public void run() {
// set up new data center
RunInstancesRequest dataCenterRequest = createDataCenterRequest();
RunInstancesResult runDataCenterResult = ec2.runInstances(dataCenterRequest);
Instance dataCenterInstance = runDataCenterResult.getReservation().getInstances().get(0);
String dataCenterId = dataCenterInstance.getInstanceId();
createTag(ec2, dataCenterInstance);
// wait for 1 min for the data center running
try {
Thread.sleep(60 * 1000);
} catch (InterruptedException e1) {
e1.printStackTrace();
}
// wait for data center ready for the web server
String testSentence = null;
while (testSentence == null) {
System.out.println("RunInstance Thread: Waiting for data center ready");
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
List<Instance> allInstances = listInstance(ec2);
for (Instance inst : allInstances) {
if (inst.getInstanceId().equals(dataCenterId)) {
dataCenterInstance = inst;
break;
}
}
String randomUserUrl = "http://" + dataCenterInstance.getPublicDnsName() + "/lookup/random";
try {
testSentence = sendGet(randomUserUrl);
} catch (Exception e) {
// Do nothing
}
}
String newDataCenterUrl = "http://" + dataCenterInstance.getPublicDnsName();
// update the data center to in-service instances
for (int i = 0; i < 3; i++) {
if (instances[i].getUrl() == null) {
instances[i].changeUrl(newDataCenterUrl);
isHealthy[i] = true;
updataHealthCount();
}
}
// complete adding instance
isAddingInstance = false;
}
public Instance startInstance(AWSCredentials credentials) {
AmazonEC2Client amazonEC2Client = new AmazonEC2Client(credentials);
RunInstancesRequest runInstancesRequest =
new RunInstancesRequest()
.withImageId("")
.withInstanceType("m1.small")
.withMinCount(1)
.withMaxCount(1);
RunInstancesResult runInstancesResult = amazonEC2Client.runInstances(runInstancesRequest);
Reservation reservation = runInstancesResult.getReservation();
List<Instance> instances = reservation.getInstances();
// there will be exactly one instance in this list, otherwise
// runInstances() would have thrown an exception
return instances.get(0);
}
public static void start() {
AWSCredentials credentials = null;
try {
credentials =
new PropertiesCredentials(
CreateInitialVMs.class.getResourceAsStream("AwsCredentials.properties"));
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
/**
* *******************************************
*
* <p>#1 Create Amazon Client object
*
* <p>*******************************************
*/
System.out.println("#1 Create Amazon Client object");
ec2 = new AmazonEC2Client(credentials);
try {
/**
* *******************************************
*
* <p>#6 Create an Instance
*
* <p>*******************************************
*/
System.out.println("#5 Create an Instance");
String imageId = "ami-76f0061f"; // Basic 32-bit Amazon Linux AMI
int minInstanceCount = 1;
int maxInstanceCount = 2; // create 2 instances
String keyPairName = "testElastic";
String securityGroupName = "Prachi";
ArrayList<String> securityGroup = new ArrayList<String>();
securityGroup.add(securityGroupName);
RunInstancesRequest rir =
new RunInstancesRequest(imageId, minInstanceCount, maxInstanceCount);
rir.setKeyName(keyPairName);
rir.setSecurityGroups(securityGroup);
Placement p = new Placement();
p.setAvailabilityZone("us-east-1a");
rir.setPlacement(p);
RunInstancesResult result = ec2.runInstances(rir);
// get instanceId from the result
List<Instance> resultInstance = result.getReservation().getInstances();
String createdInstanceId = null;
for (Instance ins : resultInstance) {
createdInstanceId = ins.getInstanceId();
System.out.println("State of instance " + ins.getInstanceId() + " : ");
while (true) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.print(ins.getState().getName() + "\n");
ins = updatedInstance(ins);
// if(ins.getPublicIpAddress()!= null){
// if(ins.getState().getName().equals("running")){
if (ins.getPublicIpAddress() != null && ins.getState().getName().equals("running")) {
break;
}
}
System.out.println("State: " + ins.getState().getName());
System.out.println("New instance has been created: " + ins.getInstanceId());
System.out.println("Instance Key: " + ins.getKeyName());
System.out.println("Public DNS Name: " + ins.getPublicDnsName());
System.out.println("Public DNS IP Address: " + ins.getPublicIpAddress());
System.out.println("Instance ID: " + ins.getInstanceId());
VMNode vmn = new VMNode();
vmn.setInstanceId(ins.getInstanceId());
/**
* ******************************************* Allocate elastic IP addresses.
* *******************************************
*/
System.out.println("Public IP before association: " + ins.getPublicIpAddress());
ins = allocateElasticIP(ins);
vmn.setElasticIp(ins.getPublicIpAddress());
System.out.println("Public IP after association: " + ins.getPublicIpAddress());
/**
* ******************************************* Create a volume
* *******************************************
*/
String createdVolumeId = createVolume();
/**
* ******************************************* Attach the volume to the instance
* *******************************************
*/
attachVolume(createdInstanceId, createdVolumeId);
vmn.setVolumeId(createdVolumeId);
/**
* ******************************************* Detach the volume from the instance
* *******************************************
*/
detachVolume(createdInstanceId, createdVolumeId);
/**
* ********************************* Create an AMI from an instance
* *******************************
*/
String createdImageId = createAmi(createdInstanceId);
vmn.setAmiId(createdImageId);
nodes.add(vmn);
/** ********************************* Stop the instance ******************************* */
// stopInstance(ins.getInstanceId());
// Diassociate Elastic IP from instance
disassociateElasticIp(ins.getPublicIpAddress());
}
System.out.println("Listing Nodes: ");
for (VMNode n : nodes) {
System.out.println("Instance ID: " + n.getInstanceid());
System.out.println("Elastic IP: " + n.getElasticIp());
System.out.println("Volume ID: " + n.getVolumeId());
System.out.println("AMI ID: " + n.getAmiId());
System.out.println();
}
/**
* *******************************************
*
* <p>#10 shutdown client object
*
* <p>*******************************************
*/
ec2.shutdown();
} catch (AmazonServiceException ase) {
System.out.println("Caught Exception: " + ase.getMessage());
System.out.println("Reponse Status Code: " + ase.getStatusCode());
System.out.println("Error Code: " + ase.getErrorCode());
System.out.println("Request ID: " + ase.getRequestId());
}
}
