How to do server side discovery with load balancer and service registry?

[SupunArunoda]

No description provided.

[afkham]

Can you elaborate? What do you mean by service registry?

[yhilem]

I only see http://microservices.io/patterns/service-registry.html

Examples of service registries (or technologies that are commonly used as service registries) include:

• Eureka
• Apache Zookeeper
• Consul
• Etcd

Some systems such as Kubernetes, Marathon and AWS ELB have an implicit service registry.

[yhilem]

Hi team,
How to add a servicelocator like (https://github.com/jboner/lagom-service-locator-zookeeper) or (https://github.com/jboner/lagom-service-locator-consul) ?
Thanks.

[imesh]

@yhilem Currently MSF4J does not provide a service discovery feature. Nevertheless, it can be implemented in the service itself using technologies that you have explained above.

AFAIU this feature is only needed for services which require point-to-point connections among service instances. Would you mind explaining your requirement around this? Thanks!

[yhilem]

My requirement is to let MSF4 microservices register in a central registry when they are up.
Than, use a proxy service (https://docs.wso2.com/display/ESB500/Working+with+Proxy+Services) in WSO2 APIM to expose the REST API. Thus, the proxy service will handle load balancing, service discovery, ....

Sample : API Gateway Routes client calls to services. Gets services locations from the service registry (http://aramis.resinfo.org/wiki/lib/exe/fetch.php?media=ateliers:microservices_docker_mesos_-_aramis.pdf)

[imesh]

Apologies for the late response @yhilem, a great proposal! I'm +1 for the suggestion!
It would really make sense to have a service registry which would get populated automatically with the microservices deployed in an environment for other components such as API gateways to fetch information.