public void buildTemplate() {
IaasProvider iaasInfo = getIaasProvider();
if (iaasInfo.getComputeService() == null) {
String msg = "Compute service is null for IaaS provider: " + iaasInfo.getName();
log.fatal(msg);
throw new CloudControllerException(msg);
}
TemplateBuilder templateBuilder = iaasInfo.getComputeService().templateBuilder();
// set image id specified
templateBuilder.imageId(iaasInfo.getImage());
if (iaasInfo.getProperty(CloudControllerConstants.AVAILABILITY_ZONE) != null) {
Set<? extends Location> locations = iaasInfo.getComputeService().listAssignableLocations();
for (Location location : locations) {
if (location.getScope().toString().equalsIgnoreCase(CloudControllerConstants.ZONE_ELEMENT)
&& location
.getId()
.equals(iaasInfo.getProperty(CloudControllerConstants.AVAILABILITY_ZONE))) {
templateBuilder.locationId(location.getId());
log.info(
"ZONE has been set as "
+ iaasInfo.getProperty(CloudControllerConstants.AVAILABILITY_ZONE)
+ " with id: "
+ location.getId());
break;
}
}
}
if (iaasInfo.getProperty(CloudControllerConstants.INSTANCE_TYPE) != null) {
// set instance type eg: m1.large
templateBuilder.hardwareId(iaasInfo.getProperty(CloudControllerConstants.INSTANCE_TYPE));
}
// build the Template
Template template = templateBuilder.build();
if (iaasInfo.getProperty(CloudControllerConstants.AVAILABILITY_ZONE) != null) {
if (!template
.getLocation()
.getId()
.equals(iaasInfo.getProperty(CloudControllerConstants.AVAILABILITY_ZONE))) {
log.warn(
"couldn't find assignable ZONE of id :"
+ iaasInfo.getProperty(CloudControllerConstants.AVAILABILITY_ZONE)
+ " in the IaaS. "
+ "Hence using the default location as "
+ template.getLocation().getScope().toString()
+ " with the id "
+ template.getLocation().getId());
}
}
// if you wish to auto assign IPs, instance spawning call should be
// blocking, but if you
// wish to assign IPs manually, it can be non-blocking.
// is auto-assign-ip mode or manual-assign-ip mode?
boolean blockUntilRunning =
Boolean.parseBoolean(iaasInfo.getProperty(CloudControllerConstants.AUTO_ASSIGN_IP));
template.getOptions().as(TemplateOptions.class).blockUntilRunning(blockUntilRunning);
// this is required in order to avoid creation of additional security
// groups by jclouds.
template.getOptions().as(TemplateOptions.class).inboundPorts();
// set EC2 specific options
if (iaasInfo.getProperty(CloudControllerConstants.ASSOCIATE_PUBLIC_IP_ADDRESS) != null) {
boolean associatePublicIp =
Boolean.parseBoolean(
iaasInfo.getProperty(CloudControllerConstants.ASSOCIATE_PUBLIC_IP_ADDRESS));
if (associatePublicIp) {
template.getOptions().as(AWSEC2TemplateOptions.class).associatePublicIpAddress();
}
}
if (iaasInfo.getProperty(CloudControllerConstants.SUBNET_ID) != null) {
template
.getOptions()
.as(AWSEC2TemplateOptions.class)
.subnetId(iaasInfo.getProperty(CloudControllerConstants.SUBNET_ID));
}
if (iaasInfo.getProperty(CloudControllerConstants.AVAILABILITY_ZONE) != null) {
template
.getOptions()
.as(AWSEC2TemplateOptions.class)
.placementGroup(iaasInfo.getProperty(CloudControllerConstants.AVAILABILITY_ZONE));
}
// security group names
if (iaasInfo.getProperty(CloudControllerConstants.SECURITY_GROUPS) != null) {
template
.getOptions()
.as(AWSEC2TemplateOptions.class)
.securityGroups(
iaasInfo
.getProperty(CloudControllerConstants.SECURITY_GROUPS)
.split(CloudControllerConstants.ENTRY_SEPARATOR));
}
// ability to define tags
if (iaasInfo.getProperty(CloudControllerConstants.TAGS) != null) {
template
.getOptions()
.as(AWSEC2TemplateOptions.class)
.tags(
Arrays.asList(
iaasInfo
.getProperty(CloudControllerConstants.TAGS)
.split(CloudControllerConstants.ENTRY_SEPARATOR)));
}
// ability to define tags with Key-value pairs
Map<String, String> keyValuePairTagsMap = new HashMap<String, String>();
for (String propertyKey : iaasInfo.getProperties().keySet()) {
if (propertyKey.startsWith(CloudControllerConstants.TAGS_AS_KEY_VALUE_PAIRS_PREFIX)) {
keyValuePairTagsMap.put(
propertyKey.substring(CloudControllerConstants.TAGS_AS_KEY_VALUE_PAIRS_PREFIX.length()),
iaasInfo.getProperties().get(propertyKey));
template.getOptions().as(AWSEC2TemplateOptions.class).userMetadata(keyValuePairTagsMap);
}
}
if (iaasInfo.getProperty(CloudControllerConstants.SECURITY_GROUP_IDS) != null) {
template
.getOptions()
.as(AWSEC2TemplateOptions.class)
.securityGroupIds(
iaasInfo
.getProperty(CloudControllerConstants.SECURITY_GROUP_IDS)
.split(CloudControllerConstants.ENTRY_SEPARATOR));
}
if (iaasInfo.getProperty(CloudControllerConstants.KEY_PAIR) != null) {
template
.getOptions()
.as(AWSEC2TemplateOptions.class)
.keyPair(iaasInfo.getProperty(CloudControllerConstants.KEY_PAIR));
}
if (iaasInfo.getNetworkInterfaces() != null) {
List<String> networks = new ArrayList<String>(iaasInfo.getNetworkInterfaces().length);
for (NetworkInterface ni : iaasInfo.getNetworkInterfaces()) {
networks.add(ni.getNetworkUuid());
}
template.getOptions().as(AWSEC2TemplateOptions.class).networks(networks);
}
// set Template
iaasInfo.setTemplate(template);
}
@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;
}