Not able to add ClientFilter for eureka replication client

[LittleBaiBai]

Since Netflix Eureka 1.9.10 (https://github.com/Netflix/eureka/releases/tag/v1.9.10), it's possible to add additional filters to an existing JerseyReplicationClient.

To do so, RefreshablePeerEurekaNodes needs to override createPeerEurekaNode() and add additional filters once the JerseyReplicationClient is created.

[venkatesh-007]

@LittleBaiBai can you elaborate this?
Any articles or info will be appreciated

[venkatesh-007]

@spencergibb any workaround for this for older eureka versions
I've to use it with eureka-core-1.6.2, any way to fork JerseyReplicationClient implementation

[spencergibb]

No articles or info or any workarounds that I know of.

[LittleBaiBai]

@venkatesh-007 If you really need to use eureka-core-1.6.2, I believe you will have to do some unfortunate reflections like this:

	@Bean
	public PeerEurekaNodes peerEurekaNodes(PeerAwareInstanceRegistry registry,
			ServerCodecs serverCodecs,
			ApplicationInfoManager applicationInfoManager,
			EurekaServerConfig eurekaServerConfig,
			EurekaClientConfig eurekaClientConfig) {
		return new PeerEurekaNodes(registry, eurekaServerConfig,
			eurekaClientConfig, serverCodecs, applicationInfoManager) {
			@Override
			protected PeerEurekaNode createPeerEurekaNode(String peerEurekaNodeUrl) {
				PeerEurekaNode peerEurekaNode = super.createPeerEurekaNode(peerEurekaNodeUrl);
				JerseyReplicationClient replicationClient = getField(PeerEurekaNode.class,
					peerEurekaNode, "replicationClient");
				ApacheHttpClient4 jerseyApacheClient = getField(JerseyReplicationClient.class,
					replicationClient, "jerseyApacheClient");
				jerseyApacheClient.addFilter(new YourCustomClientFilter()));
				return peerEurekaNode;
			}
		};
	}

[venkatesh-007]

Thanks @LittleBaiBai
Also are there any disadvantages for running a eureka server(service registry) over http (non ssl) in production?

In case my requirement is to use it on a on-premise setup(on premise cloud or vsis)
Only disadvantage I thought of is any client can register to it(one of possible attacks by having many clients) but that can be prevented by blocking http port for others

Does service discovery(eureka server) provides access to any resources of eureka clients apart from metadata(heathcheckUrl, statusCheckUrl etc given by eureka client)?
(I don't think it does)

@spencergibb @ryanjbaxter @LittleBaiBai @dsyer, any views will be appreciated

[ryanjbaxter]

I don't believe so (unless the client is publishing something in its metadata)