Hi,

you can't do that with Cellar (again, Cellar is active/active).

For "pure" failover, you have to use the lock mechanism. Your two docker
processes should:

1. use a shared filesystem (like NFS) to store the lock
2. a database lock

Kubernetes POD could be used with Cellar to discover the cluster nodes,
but not for failover.

Regards
JB

On 19/06/2018 16:06, imranrazakhan wrote:
> Ok, thanks for updates.
> 
> Please provide details how we can achieve failover behavior(A 'hot' standby
> instance) like mentioned in 
> 
>    
> https://svn.apache.org/repos/asf/karaf/site/production/manual/latest-3.0.x/failover.html
>  
> 
> in Docker environment?
> 
> How karaf support to communicate between two images/pods. 
> 
> As we can use kubernetes for orchestration of instances but i am not clear
> how to achieve "A 'hot' standby instance" with it. Kubernetes will start and
> stop bundles regardless of statuses of bundles of karaf pods
> 
> 
> 
> --
> Sent from: http://karaf.922171.n3.nabble.com/Karaf-User-f930749.html
> 

-- 
Jean-Baptiste Onofré
jbono...@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com

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