Sidecar Containers in Kubernetes: Past, Present, and Future

In their presentation, Linkerd maintainer Matei David and Kong's Mike Beaumont explored the past, present, and future of sidecar containers in Kubernetes. They delve into the surprisingly long wait for native sidecar support in Kubernetes, tracing the KEP-753 (a proposal for a sidecar mode) from its 2019 inception to its 2023 arrival. The talkbreaks downhow the new sidecar functionality works, how it compares to previous workarounds, and the differences between Kubernetes versions 1.28 and 1.29.