Sorry for such a vague subject, but I think I need some help breaking things down here.
I think I understand how the Google layer 7 LBs work (this diagram helped me: https://storage.googleapis.com/static.ianlewis.org/prod/img/750/gcp-lb-objects2.png) , I understand NGinx and HAProxy LBs independently, and I believe I also understand the concepts of NodePort, Ingress controllers, services, etc. What I don't understand is why when I research things like socket.io architectures in Kubernetes (for example), or features like IP whitelisting, session affinity, etc. I see people putting NGinx or HAProxy into their clusters. It is hard for me to keep straight all of the different levels of load balancing and their controls: - Google backend services (i.e. Google LB) - Kubernetes service LB - HAProxy/NGinx The rationale for HAProxy and NGinx seems to involve compensating for missing features and/or bugs (kube-proxy, etc.) and it is hard to keep straight what is a reality today and what the best path is? Google's LBs support session affinity, and there are session affinity Kubernetes service settings, so for starters, when and why is NGinx or HAProxy necessary, and are there outstanding issues with tracking source IPs and setting/respecting proper headers? I'm happy to get into what sort of features I need if this will help steer the discussion, but at this point I'm thinking maybe it is best to start at a more basic level where you treat me like I'm 6 years old :) Thanks 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.
