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Re: Leader election in Kubernetes control plane



Thanks, that make sense. We are using 3.6 currently 

-- 

Srinivas Kotaru
On 2/20/18, 9:46 PM, "Takayoshi Kimura" <tkimura redhat com> wrote:

    In 3.7+ "oc get cm openshift-master-controllers -n kube-system -o yaml" you can see the annotation described in that article.
    
    Regards,
    Takayoshi
    
    On Wed, 21 Feb 2018 14:37:32 +0900,
    "Srinivas Naga Kotaru (skotaru)" <skotaru cisco com> wrote:
    > 
    > It has just client-ca-file. We have 3 masters in each cluster. not sure how to identify which control manager is active? I usually find which oneʼs is writing logs by using journalctl atomic-openshift-master-controllers.service. passive oneʼs donʼt write or generate
    > any logs.
    > 
    > -- 
    > 
    > Srinivas Kotaru
    > 
    > From: Clayton Coleman <ccoleman redhat com>
    > Date: Tuesday, February 20, 2018 at 9:29 PM
    > To: Srinivas Naga Kotaru <skotaru cisco com>
    > Cc: dev <dev lists openshift redhat com>
    > Subject: Re: Leader election in Kubernetes control plane
    > 
    > We use config maps - check in kube-system for that.
    > 
    > On Feb 15, 2018, at 2:48 PM, Srinivas Naga Kotaru (skotaru) <skotaru cisco com> wrote:
    > 
    >     while I was reading below article, I tried to do the same to find out which one is active control plane in Openshift. I could see zero end points in kube-system name space. Am I missing something or not implemented in Openshift?
    > 
    >     https://blog.heptio.com/leader-election-in-kubernetes-control-plane-heptioprotip-1ed9fb0f3e6d
    > 
    >     $oc project
    >    
    >     Using project "kube-system" on server
    >    
    >     $ oc get ep
    >    
    >     No resources found.
    >    
    >     $oc get all
    >    
    >     No resources found.
    > 
    >     -- 
    >    
    >     Srinivas Kotaru
    >    
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