On Thu, Mar 2, 2017 at 10:34 PM, <[email protected]> wrote: > Hi Kubernetes Users and Dev > > > I have a HA cluster with 1.3.6 running. I have three masters, each running > apiserver, kube-scheduler and controller-manager and etcd running. I want > to upgrade to 1.5.2 without bringing the cluster down. > > I was thinking a couple of ways:- > > Method 1: > > 1. Bring one master down and upgrade, while maintaining the quorom for > etcd > 2. The new master comes up as 1.5.2 while the remaining continue to > run as 1.3.6 > 3. In this scenario > 1. If kubelets running as 1.3.6 try to talk to new master 1.5.2, > will that work ? > > Yes, we support up to 2 minor versions skew (e.g. 1.5 master can work with 1.3+ kubelets or 1.6 master can work with 1.4+ kubelets)
> > 1. Is that supported scenario ? > > Yes > > 1. What about kube-proxy ? > > It will work. > > 1. Will the api-server running as 1.5.2 be able to talk to kubelets > > Yes, though the communication is always initiated by the kubelet. > Method 3: > > The other way would be to partition the cluster , and move some minions > and a single master to new 1.5.2. That is not preferable imo. > > Are there other ways people can think of making this work ? > > -Mayank > > > > -- > You received this message because you are subscribed to the Google Groups > "Kubernetes developer/contributor discussion" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/kubernetes-dev/6e55f2a7-34d4-40b1-8963-ef8b19eb0b31% > 40googlegroups.com > <https://groups.google.com/d/msgid/kubernetes-dev/6e55f2a7-34d4-40b1-8963-ef8b19eb0b31%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Kubernetes user discussion and Q&A" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/kubernetes-users. For more options, visit https://groups.google.com/d/optout.
