I think the article provides some great foundational perspectives on how HA/service discovery/port mgmt and so on were handled in the "pre-containers" era of VM

I think the article provides some great foundational perspectives on how HA/service discovery/port mgmt and so on were handled in the "pre-containers" era of VMs with a look into how these challenges are somewhat re-imagined in this current world of containers (predominantly Docker). I'm looking forward to the follow-on post about why they chose Kubernetes and how that solution works for them.