@Override
public Instance update(Instance existingEntity, Instance requestedEntity) {
LOG.debug(
String.format(
"update(Existing Instance - %s,Requested Instance - %s)",
existingEntity, requestedEntity));
InstanceStateTransition transition = new InstanceStateTransition();
Instance entityToReturn = null;
if (existingEntity != null) {
transition.setPreviousState(existingEntity.getState());
// we set this here in case we can't write the state want.
// this way the user doesn't get back a null. :D.
transition.setNextState(existingEntity.getState());
instanceStatusMap.put(existingEntity.getInstanceId(), transition);
if (existingEntity.getNodeId() != null
&& existingEntity.getState() != InstanceState.SHUTTING_DOWN
&& existingEntity.getState() != InstanceState.TERMINATED) {
existingEntity.setState(InstanceState.SHUTTING_DOWN);
entityToReturn = existingEntity;
} else if (existingEntity.getState() != InstanceState.TERMINATED) {
LOG.info(
String.format(
"Instance %s is provisionally being terminated before an Instance Manager has claimed it by stamping a node id onto it",
existingEntity.getInstanceId()));
existingEntity.setState(InstanceState.TERMINATED);
entityToReturn = existingEntity;
}
} else {
LOG.warn(String.format("Expected non-null instance"));
}
return entityToReturn;
}
protected Instance putInstanceIntoDht(String instanceID) {
int globalAvailabilityZoneCode = piIdBuilder.getGlobalAvailabilityZoneCodeFromEc2Id(instanceID);
instance = new Instance(instanceID, "test", "default", ImagePlatform.linux);
instance.setAvailabilityZoneCode(
PId.getAvailabilityZoneCodeWithinRegionFromGlobalAvailabilityZoneCode(
globalAvailabilityZoneCode));
instance.setRegionCode(
PId.getRegionCodeFromGlobalAvailabilityZoneCode(globalAvailabilityZoneCode));
instance.setImageId(IMAGE_ID);
instance.setKeyName(KEY);
instance.setImageSizeInMB(1024);
instance.setPrivateMacAddress("D0:0D:12:34:56:78");
instance.setMemoryInKB("512");
instance.setVcpus(1);
instance.setVlanId(getRandomVlanId());
instance.setInstanceType("m1.small");
instance.setUserId(USER_NAME);
instance.setState(InstanceState.PENDING);
instancePastryId = piIdBuilder.getPIdForEc2AvailabilityZone(instance);
System.err.println(
"Instance pastryId: "
+ instancePastryId
+ " gAvz code embeded in instanceID: "
+ globalAvailabilityZoneCode);
System.err.println("Instance pastryId: " + instancePastryId.toStringFull());
putPiEntityIntoDht(instance, instancePastryId);
return instance;
}
public ReservationInstances runInstances(final Reservation reservation) {
LOG.debug(String.format("runInstances(%s)", reservation));
String securityGroupUrl =
SecurityGroup.getUrl(reservation.getUserId(), reservation.getSecurityGroupName());
PId securityGroupId = getPiIdBuilder().getPId(securityGroupUrl).forLocalRegion();
SecurityGroup securityGroup =
(SecurityGroup) getDhtClientFactory().createBlockingReader().get(securityGroupId);
validateReservation(reservation, securityGroup);
reservation.setReservationId(getIdFactory().createNewReservationId());
AvailabilityZone availabilityZone;
if (StringUtils.isNotEmpty(reservation.getAvailabilityZone())) {
try {
availabilityZone = getAvailabilityZoneByName(reservation.getAvailabilityZone());
} catch (AvailabilityZoneNotFoundException e) {
throw new IllegalArgumentException(
String.format("Unknown availability zone: %s", reservation.getAvailabilityZone()));
}
} else {
availabilityZone = getLocalAvailabilityZone();
reservation.setAvailabilityZone(availabilityZone.getAvailabilityZoneName());
}
// setup return object
ReservationInstances reservationInstances = new ReservationInstances();
reservationInstances.setReservation(reservation);
for (int i = 0; i < reservation.getMaxCount(); i++) {
String instanceId =
getIdFactory().createNewInstanceId(availabilityZone.getGlobalAvailabilityZoneCode());
// create instance
Instance instance = new Instance(reservation);
instance.setInstanceType(reservation.getInstanceType());
instance.setUserId(reservation.getUserId());
instance.setInstanceId(instanceId);
instance.setState(InstanceState.PENDING);
instance.setLaunchTime(System.currentTimeMillis());
instance.setAvailabilityZoneCode(availabilityZone.getAvailabilityZoneCodeWithinRegion());
instance.setRegionCode(availabilityZone.getRegionCode());
LOG.info(String.format("Requesting new %s", instance));
reservationInstances.getInstances().add(instance);
// create instance in dht
PId instanceDhtId =
getPiIdBuilder().getPIdForEc2AvailabilityZone(Instance.getUrl(instanceId));
BlockingDhtWriter blockingDhtWriter = getDhtClientFactory().createBlockingWriter();
AddNewInstanceResolver addNewInstanceResolver = new AddNewInstanceResolver();
blockingDhtWriter.update(instanceDhtId, instance, addNewInstanceResolver);
reservation.addInstanceId(instance.getInstanceId());
}
getUserService()
.addInstancesToUser(
reservation.getUserId(), reservation.getInstanceIds(), reservation.getInstanceType());
// write security group to DHT
getDhtClientFactory()
.createBlockingWriter()
.update(
securityGroupId,
null,
new AddInstanceToSecurityGroupResolver(reservation.getInstanceIds()));
// add to task processing queue
PId runInstanceQueueId =
getPiIdBuilder()
.getPId(PiQueue.RUN_INSTANCE.getUrl())
.forGlobalAvailablityZoneCode(availabilityZone.getGlobalAvailabilityZoneCode());
for (String instanceId : reservation.getInstanceIds()) {
getTaskProcessingQueueHelper()
.addUrlToQueue(runInstanceQueueId, Instance.getUrl(instanceId), instanceTaskQueueRetries);
}
// anycast message
PubSubMessageContext pubSubMessageContext =
getApiApplicationManager()
.newPubSubMessageContextFromGlobalAvzCode(
PiTopics.RUN_INSTANCE, availabilityZone.getGlobalAvailabilityZoneCode());
pubSubMessageContext.randomAnycast(EntityMethod.CREATE, reservation);
return reservationInstances;
}
