@Override
public synchronized void releaseAddress(String ip) {
IaasProvider iaasInfo = getIaasProvider();
ComputeServiceContext context = iaasInfo.getComputeService().getContext();
ElasticIPAddressApi elasticIPAddressApi =
context.unwrapApi(AWSEC2Api.class).getElasticIPAddressApi().get();
String region = ComputeServiceBuilderUtil.extractRegion(iaasInfo);
elasticIPAddressApi.disassociateAddressInRegion(region, ip);
elasticIPAddressApi.releaseAddressInRegion(region, ip);
}
/**
* @param addressApi
* @param region
* @param ip
* @param id
*/
private boolean associatePublicIp(
ElasticIPAddressApi addressApi, String region, String ip, String id) {
try {
addressApi.associateAddressInRegion(region, ip, id);
log.info("Successfully associated public IP ");
return true;
} catch (Exception e) {
log.debug("Exception in associating public IP " + e.getMessage());
return false;
}
}
@Override
public synchronized List<String> associateAddresses(NodeMetadata node) {
IaasProvider iaasInfo = getIaasProvider();
ComputeServiceContext context = iaasInfo.getComputeService().getContext();
ElasticIPAddressApi elasticIPAddressApi =
context.unwrapApi(AWSEC2Api.class).getElasticIPAddressApi().get();
String region = ComputeServiceBuilderUtil.extractRegion(iaasInfo);
String ip = null;
// first try to find an unassigned IP.
ArrayList<PublicIpInstanceIdPair> unassignedIps =
Lists.newArrayList(
Iterables.filter(
elasticIPAddressApi.describeAddressesInRegion(region),
new Predicate<PublicIpInstanceIdPair>() {
@Override
public boolean apply(PublicIpInstanceIdPair arg0) {
return arg0.getInstanceId() == null;
}
}));
if (!unassignedIps.isEmpty()) {
// try to prevent multiple parallel launches from choosing the same
// ip.
Collections.shuffle(unassignedIps);
ip = Iterables.getLast(unassignedIps).getPublicIp();
}
// if no unassigned IP is available, we'll try to allocate an IP.
if (ip == null || ip.isEmpty()) {
try {
ip = elasticIPAddressApi.allocateAddressInRegion(region);
log.info("Allocated ip [" + ip + "]");
} catch (Exception e) {
String msg = "Failed to allocate an IP address. All IP addresses are in use.";
log.error(msg, e);
throw new CloudControllerException(msg, e);
}
}
String id = node.getProviderId();
// wait till the fixed IP address gets assigned - this is needed before
// we associate a
// public IP
while (node.getPrivateAddresses() == null) {
CloudControllerUtil.sleep(1000);
}
int retries = 0;
while (retries < 12 && !associatePublicIp(elasticIPAddressApi, region, ip, id)) {
// wait for 5s
CloudControllerUtil.sleep(5000);
retries++;
}
log.debug("Successfully associated an IP address " + ip + " for node with id: " + node.getId());
List<String> associatedIPs = new ArrayList<String>();
associatedIPs.add(ip);
return associatedIPs;
}