Kubernetes used to be a platform that could only host stateless workloads, and while this has mostly changed with up to 90% believing Kubernetes is ready for stateful workloads, "databases like PostgreSQL cannot run on Kubernetes" is something that you can still hear. However, Gabriele Bartolini, Vice President of Cloud Native for EDB, and Francesco Canovai, System Engineer for 2ndQuadrant, think otherwise.
But they don’t want us to take their words for granted. If a company is considering running Postgres on Kubernetes, the first question they should ask is “why”. Once the goal is figured out, benchmarking the setup is a great way to ensure that it will be performed as needed.