@Override
public Iterable<? extends NodeMetadata> listDetailsOnNodesMatching(
Predicate<ComputeMetadata> filter) {
return Iterables.filter(
Iterables.transform(client.getServerServices().getServerList(), serverToNodeMetadata),
filter);
}
private Server addServer(String name, Template template, Ip availableIp) {
Server addedServer =
client
.getServerServices()
.addServer(
name,
checkNotNull(template.getImage().getProviderId()),
sizeToRam.apply(template.getHardware()),
availableIp.getIp());
return addedServer;
}
@Override
public NodeMetadata createNodeWithGroupEncodedIntoName(
String group, String name, Template template) {
Server addedServer = null;
boolean notStarted = true;
int numOfRetries = 20;
GetIpListOptions unassignedIps =
new GetIpListOptions()
.onlyUnassigned()
.inDatacenter(template.getLocation().getId())
.onlyWithType(IpType.PUBLIC);
// lock-free consumption of a shared resource: IP address pool
while (notStarted) { // TODO: replace with Predicate-based thread
// collision avoidance for simplicity
Set<Ip> availableIps = client.getIpServices().getIpList(unassignedIps);
if (availableIps.isEmpty()) throw new RuntimeException("No IPs available on this identity.");
int ipIndex = new SecureRandom().nextInt(availableIps.size());
Ip availableIp = Iterables.get(availableIps, ipIndex);
try {
addedServer = addServer(name, template, availableIp);
notStarted = false;
} catch (Exception e) {
if (--numOfRetries == 0) Throwables.propagate(e);
notStarted = true;
}
}
if (template.getOptions().shouldBlockUntilRunning()) {
serverLatestJobCompleted.apply(addedServer);
client.getServerServices().power(addedServer.getName(), PowerCommand.START);
serverLatestJobCompletedShort.apply(addedServer);
addedServer =
Iterables.getOnlyElement(
client.getServerServices().getServersByName(addedServer.getName()));
}
Credentials credentials =
client.getServerServices().getServerCredentialsList().get(addedServer.getName());
if (credentials != null) credentialStore.put("node#" + addedServer.getId(), credentials);
else logger.warn("couldn't get credentials for server %s", addedServer.getName());
return serverToNodeMetadata.apply(addedServer);
}