k3s recently (v1.19) deprecated built-in dqlite support. (it was replaced with built-in etcd.) though with kine (kine is not etcd) you can easily use mysql/sql

k3s recently (v1.19) deprecated built-in dqlite support. (it was replaced with built-in etcd.) though with kine (kine is not etcd) you can easily use mysql/sqlite/dqlite/postgresql.