Patroni
Developer guide
etcd guide for developers
Discovery service protocol
Discover other etcd members in a cluster bootstrap phase
Set up a local cluster
Configuring local clusters for testing and development
Interacting with etcd
etcdctl: a command line tool for interacting with the etcd server
Why gRPC gateway
Why you should consider using the gRPC gateway
gRPC naming and discovery
go-grpc: for resolving gRPC endpoints with an etcd backend
System limits
etcd limits: requests and storage
etcd features
using etcd features