/**
* Refresh instance info - currently only used when in AWS cloud as a public ip can change
* whenever an EIP is associated or dissociated.
*/
public synchronized void refreshAmazonInfo() {
try {
AmazonInfo newInfo = AmazonInfo.Builder.newBuilder().autoBuild(namespace);
if (shouldUpdate(newInfo, info)) {
// the datacenter info has changed, re-sync it
logger.info("The AmazonInfo changed from : {} => {}", info, newInfo);
this.info = newInfo;
}
} catch (Throwable t) {
logger.error("Cannot refresh the Amazon Info ", t);
}
}
private AmazonInfo initDataCenterInfo() {
AmazonInfo info;
try {
info = AmazonInfo.Builder.newBuilder().autoBuild(namespace);
logger.info("Datacenter is: " + Name.Amazon);
} catch (Throwable e) {
logger.error("Cannot initialize amazon info :", e);
throw new RuntimeException(e);
}
// Instance id being null means we could not get the amazon metadata
if (info.get(MetaDataKey.instanceId) == null) {
if (propValidateInstanceId.get()) {
throw new RuntimeException(
"Your datacenter is defined as cloud but we are not able to get the amazon metadata to "
+ "register. \nSet the property "
+ namespace
+ "validateInstanceId to false to "
+ "ignore the metadata call");
} else {
// The property to not validate instance ids may be set for
// development and in that scenario, populate instance id
// and public hostname with the hostname of the machine
Map<String, String> metadataMap = new HashMap<String, String>();
metadataMap.put(MetaDataKey.instanceId.getName(), super.getIpAddress());
metadataMap.put(MetaDataKey.publicHostname.getName(), super.getHostName(false));
info.setMetadata(metadataMap);
}
} else if ((info.get(MetaDataKey.publicHostname) == null)
&& (info.get(MetaDataKey.localIpv4) != null)) {
// :( legacy code and logic
// This might be a case of VPC where the instance id is not null, but
// public hostname might be null
info.getMetadata()
.put(MetaDataKey.publicHostname.getName(), (info.get(MetaDataKey.localIpv4)));
}
return info;
}
