We run almost all of our DBs - pg, cockroachdb, clickhouse and etcd/kafka/redis (if you can consider those a database) inside docker/crio inside k8s. In product

We run almost all of our DBs - pg, cockroachdb, clickhouse and etcd/kafka/redis (if you can consider those a database) inside docker/crio inside k8s. In production under high load. Works really well. We’ve had more crashes of the db itself than anything container/node related