On Mon, Jun 5, 2017 at 10:29 AM, <kustun...@gmail.com> wrote: > GKE creates a cluster with one master zone. Although there is an SLA of > 99.5% uptime, this adds up to almost 4 hours in a month. This is not > acceptable for my application in production. > > Furthermore, cluster with one master zone is vulnerable to corresponding > availability zone going down. How likely an availability zone can go down?
I can't find any published documentation about the availability of a single zone. They can go down, as can a whole region, but both events are rare. > I understand that my app will continue to run when master is down but it > is still a big concern that I cannot scale up my service or deploy a new > version of my app, etc. > > What is the GKE best practice to deploy a business critical app that > strives for 99.999% uptime? > To get to 5 nines you'll want to have multiple independent control planes (e.g. multiple clusters) across not only zones but regions as well. And then you would use a global load balancer <https://cloud.google.com/compute/docs/load-balancing/http/> and/or DNS records spread incoming load across service backends in your multiple clusters. This allows you to do staged rollouts of both your application and the cluster control plane so that you can route traffic away from problematic clusters to maintain availability. > > Thanks for your help in advance. > > -- > 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 kubernetes-users+unsubscr...@googlegroups.com. > To post to this group, send email to kubernetes-users@googlegroups.com. > Visit this group at https://groups.google.com/group/kubernetes-users. > 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 kubernetes-users+unsubscr...@googlegroups.com. To post to this group, send email to kubernetes-users@googlegroups.com. Visit this group at https://groups.google.com/group/kubernetes-users. For more options, visit https://groups.google.com/d/optout.
