private MachineType getClosestInstanceType(MachineCreationRequest request) throws OpsException {
log.info("Listing machine types to find best size");
Iterable<MachineType> flavors = listMachineTypes(projectId);
List<MachineType> candidates = Lists.newArrayList();
for (MachineType flavor : flavors) {
// Ignore the machine types with no ephemeral disks - they're the same price
// TODO: Is this right?
if (flavor.getEphemeralDisks() == null || flavor.getEphemeralDisks().isEmpty()) {
continue;
}
int instanceMemoryMB = flavor.getMemoryMb();
if (request.minimumMemoryMB > instanceMemoryMB) {
continue;
}
candidates.add(flavor);
}
MachineType bestFlavor = findCheapest(candidates);
if (bestFlavor == null) {
return null;
}
return bestFlavor;
}
private float computePrice(MachineType flavor) {
// We compute the per-hour price so we can choose the smallest/cheapest instance size
float price = 0;
int cpus = flavor.getGuestCpus() != null ? flavor.getGuestCpus() : 0;
int memoryMb = flavor.getMemoryMb() != null ? flavor.getMemoryMb() : 0;
// // RAM is $0.10 / hour / GB
// price += (0.10 / 1024.0) * ram;
// // Disk is $0.10 / hour / TB
// int disk = flavor.getDisk();
// price += (0.10 / 1024.0) * disk;
// CPUs are $0.145 / hour / vCPU
price += 0.145 * cpus;
return price;
}
public Instance createInstance(
GoogleCloud cloud, MachineCreationRequest request, PublicKey sshPublicKey)
throws OpsException {
// GoogleComputeClient computeClient = getComputeClient(cloud);
try {
Image foundImage = null;
{
DiskImageRecipe recipe = null;
if (request.recipeId != null) {
recipe = platformLayerClient.getItem(request.recipeId, DiskImageRecipe.class);
}
OperatingSystemRecipe operatingSystem = null;
if (recipe != null) {
operatingSystem = recipe.getOperatingSystem();
}
log.info("Listing images to pick best image");
Iterable<Image> images = listImages(PROJECTID_GOOGLE);
// TODO: We need a better solution here!!
log.warn("Hard coding image names");
Set<String> imageNames = Sets.newHashSet("ubuntu-12-04-v20120621");
// Set<String> imageNames = Sets.newHashSet("centos-6-2-v20120621");
for (Image image : images) {
if (imageNames.contains(image.getName())) {
foundImage = image;
break;
}
}
if (foundImage == null) {
throw new IllegalArgumentException("Could not find image");
}
}
// GCE requires that the name comply with RFC1035, which I think means a valid DNS
// For now, just use a UUID, with a pl- prefix so it doesn't start with a number
// TODO: Fix this!
String instanceName = "pl-" + UUID.randomUUID().toString();
Operation createServerOperation;
{
Instance create = new Instance();
create.setName(instanceName);
create.setZone(buildZoneUrl(projectId, ZONE_US_CENTRAL1_A));
{
NetworkInterface networkInterface = new NetworkInterface();
networkInterface.setNetwork(buildNetworkUrl(projectId, "default"));
AccessConfig networkAccessConfig = new AccessConfig();
networkAccessConfig.setType("ONE_TO_ONE_NAT");
networkInterface.setAccessConfigs(Lists.newArrayList(networkAccessConfig));
create.setNetworkInterfaces(Lists.newArrayList(networkInterface));
}
Metadata metadata = new Metadata();
metadata.setItems(Lists.<Items>newArrayList());
create.setMetadata(metadata);
if (request.tags != null) {
for (Tag tag : request.tags) {
Metadata.Items meta = new Metadata.Items();
meta.setKey(tag.getKey());
meta.setValue(tag.getValue());
metadata.getItems().add(meta);
}
}
if (request.sshPublicKey != null) {
Metadata.Items meta = new Metadata.Items();
meta.setKey("sshKeys");
meta.setValue(USER_NAME + ":" + OpenSshUtils.serialize(sshPublicKey));
metadata.getItems().add(meta);
}
create.setImage(foundImage.getSelfLink());
MachineType flavor = getClosestInstanceType(request);
if (flavor == null) {
throw new OpsException("Cannot determine machine type for request");
}
create.setMachineType(flavor.getSelfLink());
if (request.securityGroups != null) {
// TODO: Reimplement if needed
throw new UnsupportedOperationException();
}
// if (createdSecurityGroup != null) {
// ServerForCreate.SecurityGroup serverSecurityGroup = new ServerForCreate.SecurityGroup();
// serverSecurityGroup.setName(createdSecurityGroup.getName());
// create.getSecurityGroups().add(serverSecurityGroup);
// }
// create.setConfigDrive(cloudBehaviours.useConfigDrive());
log.info("Launching new server: " + instanceName);
try {
createServerOperation = compute.instances().insert(projectId, create).execute();
} catch (IOException e) {
throw new OpsException("Error launching new instance", e);
}
}
log.info("Waiting for server to be ready");
createServerOperation = waitComplete(createServerOperation, 10, TimeUnit.MINUTES);
Instance created;
InstanceState state = null;
while (true) {
created = findInstanceByName(instanceName);
state = InstanceState.get(created);
log.info("Instance state: " + state);
if (state.isRunning()) {
break;
}
Thread.sleep(1000);
}
return created;
} catch (InterruptedException e) {
ExceptionUtils.handleInterrupted(e);
throw new OpsException("Error building server", e);
} catch (TimeoutException e) {
throw new OpsException("Timeout waiting for server build", e);
}
}