https://etcd.io/docs/v3.7/op-guide/runtime-configuration/
Runtime reconfiguration | etcd
etcd incremental runtime reconfiguration support
runtime reconfigurationetcd
https://etcd.io/docs/v3.5/op-guide/runtime-reconf-design/
Design of runtime reconfiguration | etcd
The design of etcd’s runtime reconfiguration commands
runtime reconfigurationdesignetcd