Re: [keycloak-user] kubernetes discovery protocol for JGroups
Meissa,
I believe the difference is in how it gets the data about the instances in the cluster.
DNS_PING obviously will use DNS, in a Kubernetes env you will want to setup a headless
service for that so it gets all the IPs for all the instances. As for KUBE_PING, well that
uses the Kubernetes API directly to determine the IPs of the instances.
I run vanilla Kubernetes clusters so I don't know how the difference with OS will
effect my beliefs. However, I would probably recommend just using DNS_PING and making sure
that there is a headless service as well as a normal service for Keycloak. It would seem
to be the more generic method for sure.
Best regards,
Graham Burgess
RΛZΞR|stormmore
Sr. DevOps Engineer (USA)
Email: graham.burgess(a)razer.com
DID: (415) 374 0639
Razer Inc. Stock Code: 1337.HK
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-----Original Message-----
From: keycloak-user-bounces(a)lists.jboss.org <keycloak-user-bounces(a)lists.jboss.org>
On Behalf Of Meissa M'baye Sakho
Sent: Tuesday, October 30, 2018 3:56 AM
To: keycloak-user <keycloak-user(a)lists.jboss.org>
Subject: [keycloak-user] kubernetes discovery protocol for JGroups
Hello everyone,
Can someone tell me the difference between the dns.DNS_PING and kubernetes.KUBE_PING
protocols that we could use to enable keycloak clustering?
It seems like both of them could be used in a kubernetes environment but I can't see a
documentation clearly explaining the difference between them.
I would like to knwo which one is relevant in a openshift environnement which one is in a
non openshift environnement.
The official githup repo [1] does not say a lot about that?
[1]=https://github.com/jgroups-extras/jgroups-kubernetes/
Regards,
Meissa
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