com.netflix.eureka.aws

Class ElasticNetworkInterfaceBinder

java.lang.Object

com.netflix.eureka.aws.ElasticNetworkInterfaceBinder

All Implemented Interfaces:

AwsBinder

public class ElasticNetworkInterfaceBinder
extends java.lang.Object
implements AwsBinder

Amazon ENI binder for instances. Candidate ENI's discovery is done using the same mechanism as Elastic ip binder, via dns records or service urls. The dns records and the service urls should use the ENI private dns or private ip Dns record examples txt.us-east-1.eureka="us-east-1a.eureka" "us-east-1b.eureka" txt.us-east-1a.eureka="ip-172-31-y-y.ec2.internal" txt.us-east-1b.eureka="ip-172-31-x-x.ec2.internal" where "ip-172-31-x-x.ec2.internal" is the ENI private dns Service url example: eureka.serviceUrl.us-east-1a=http://ip-172-31-x-x.ec2.internal:7001/eureka/v2/ ENI Binding strategy should be configured via property like: eureka.awsBindingStrategy=ENI If there are no available ENI's for the availability zone, it will not attach any already attached ENI

Constructor Summary

Constructors

Constructor and Description
ElasticNetworkInterfaceBinder(EurekaServerConfig serverConfig, com.netflix.discovery.EurekaClientConfig clientConfig, PeerAwareInstanceRegistry registry, com.netflix.appinfo.ApplicationInfoManager applicationInfoManager)

Method Summary

Modifier and Type	Method and Description
boolean	alreadyBound()
void	bind() Binds an ENI to the instance.
java.util.List<java.lang.String>	getCandidateIps() Based on shouldUseDnsForFetchingServiceUrls configuration, either retrieves candidates from dns records or from configuration properties.
void	shutdown()
void	start()
void	unbind() Unbind the IP that this instance is associated with.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ElasticNetworkInterfaceBinder

@Inject
public ElasticNetworkInterfaceBinder(EurekaServerConfig serverConfig,
                                             com.netflix.discovery.EurekaClientConfig clientConfig,
                                             PeerAwareInstanceRegistry registry,
                                             com.netflix.appinfo.ApplicationInfoManager applicationInfoManager)

Method Detail

start

@PostConstruct
public void start()
                          throws java.lang.Exception

Specified by:

start in interface AwsBinder

Throws:

java.lang.Exception

shutdown

@PreDestroy
public void shutdown()
                          throws java.lang.Exception

Specified by:

shutdown in interface AwsBinder

Throws:

java.lang.Exception

alreadyBound

public boolean alreadyBound()
                     throws java.net.MalformedURLException

Throws:

java.net.MalformedURLException

bind

public void bind()
          throws java.net.MalformedURLException

Binds an ENI to the instance. The candidate ENI's are deduced in the same wa the EIP binder works: Via dns records or via service urls, depending on configuration. It will try to attach the first ENI that is: Available For this subnet In the list of candidate ENI's

Throws:

java.net.MalformedURLException

unbind

public void unbind()
            throws java.lang.Exception

Unbind the IP that this instance is associated with.

Throws:

java.lang.Exception

getCandidateIps

public java.util.List<java.lang.String> getCandidateIps()
                                                 throws java.net.MalformedURLException

Based on shouldUseDnsForFetchingServiceUrls configuration, either retrieves candidates from dns records or from configuration properties.

Throws:

java.net.MalformedURLException