Calculating The Kubernetes Integration Tax: What Your DIY Networking Stack Actually Costs

It was 11:47pm on a Thursday night, and a senior platform engineer at a large North American bank was rolling back a ‘simple’ configuration change. The change itself was small, a routine update approved through the usual review process, but when it was applied, pods began cycling and connections started dropping. For the next three seconds, mobile banking sessions already mid-transaction dropped. Customer support lit up. The incident review the next morning spent most of its time arguing about how the change had been approved.