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jhipster / generator-jhipster

JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
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DNS Service Discovery with Kubernetes #4106

Closed pkrishnath closed 8 years ago

pkrishnath commented 8 years ago
Overview of the issue

Currently deploying jhipster micro services on kubernetes cluster which is using jhipster registry for service discovery. But we would like to use DNS for service discovery and kubernetes config map for application properties

Motivation for or Use Case

We would like to use the default functionality of kubernetes and eliminate the overhead of deploying additional jhipster registry container on the cluster

jdubois commented 8 years ago

I'm sorry but you use a DNS server instead of the Registry, then we would need to remove the whole Netflix stack... Not something we could do easily. Besides, that would remove all service breakers, load balancing, automatic fail-over... Which is not something I'd like at the moment.

xetys commented 8 years ago

in addition to this, there is some project kubeflix, which combines the strenghts from both....and I have seen some good article some days ago...I will take a look.

For the moment I think some individual solution must be found for that issue

PierreBesson commented 8 years ago

@pkrishanth Eventually this might come to JHipster in the future. What you are looking for is: https://github.com/fabric8io/spring-cloud-kubernetes.

It's very easy to replace spring-cloud-eureka by this, I have already done it. You will even have all your kubernetes services showing up in the gateway.

Moreover on the contrary to what @jdubois said, components of the Netflix (Ribbon, Hystrix, Zuul) stack will still be working.

pkrishnath commented 8 years ago

Thanks @PierreBesson , I have done that already :) in a branch , need to deploy & test it on the cluster.

Have you changed anything in the code ?

PierreBesson commented 8 years ago

@pkrishanth You normaly just need to change a few properties and annotations on the main class. You can use minikube to test in dev first.

If you can please give feedback and propose improvement on the kubernetes subgen.

pkrishnath commented 8 years ago

@PierreBesson , I have removed EnableEurekaClient annotation , removed eureka related properties from ymal file and added spring-cloud-kubernetes in the pom.

But getting "UnknownHostException: kubernetes.default.svc: unknown error"

Have you got any Idea?

PierreBesson commented 8 years ago

Sorry @pkrishanth I don't have any idea.

pkrishnath commented 8 years ago

Re-generating my apps with 3.9.1 version Hope no service discovery & configuration option gonna help me

PierreBesson commented 8 years ago

@pkrishanth please dont comment on an old issue. For support please use Stackoverflow rather than github issues.

mootezbessifi commented 7 years ago

@PierreBesson thank you for you clarification but may you give me more explanation of this comment what exactly i need to do in the purpose of replacing Eureka service discovery with kubernetes dns

PierreBesson commented 7 years ago

@mootezbessifi, this is currently out of the scope of JHipster. Have a look at the spring cloud kubernetes project linked above but I can't help you further not being a user myself.

And please don't comment on an old issue.

jdubois commented 7 years ago

Sorry guys but this is a bug tracker, only for JHipster issues... I'm locking this conversation