// SecurityGroup securityGroup = null;
// if (supportsSecurityGroups) {
// securityGroup = openstackHelpers.getMachineSecurityGroup(computeClient, server);
// }
Operation terminateOperation = computeClient.terminateInstance(instanceId);
try {
computeClient.waitComplete(terminateOperation, 5, TimeUnit.MINUTES);
} catch (TimeoutException e) {
throw new OpsException("Timeout while waiting for instance termination", e);
}