/** Unbind the EIP that this instance is associated with. */
public void unbindEIP() throws Exception {
InstanceInfo myInfo = applicationInfoManager.getInfo();
String myPublicIP = null;
if (myInfo != null && myInfo.getDataCenterInfo().getName() == Name.Amazon) {
myPublicIP = ((AmazonInfo) myInfo.getDataCenterInfo()).get(MetaDataKey.publicIpv4);
if (myPublicIP == null) {
logger.info("Instance is not associated with an EIP. Will not try to unbind");
return;
}
try {
AmazonEC2 ec2Service = getEC2Service();
DescribeAddressesRequest describeAddressRequest =
new DescribeAddressesRequest().withPublicIps(myPublicIP);
DescribeAddressesResult result = ec2Service.describeAddresses(describeAddressRequest);
if ((result.getAddresses() != null) && (!result.getAddresses().isEmpty())) {
Address eipAddress = result.getAddresses().get(0);
DisassociateAddressRequest dissociateRequest = new DisassociateAddressRequest();
String domain = eipAddress.getDomain();
if ("vpc".equals(domain)) {
dissociateRequest.setAssociationId(eipAddress.getAssociationId());
} else {
dissociateRequest.setPublicIp(eipAddress.getPublicIp());
}
ec2Service.disassociateAddress(dissociateRequest);
logger.info("Dissociated the EIP {} from this instance", myPublicIP);
}
} catch (Throwable e) {
throw new RuntimeException("Cannot dissociate address from this instance", e);
}
}
}
