diff --git a/docker/my.cnf b/docker/my.cnf
new file mode 100644
index 0000000..6752eee
--- /dev/null
+++ b/docker/my.cnf
@@ -0,0 +1,6 @@
+[mysqld]
+sql_mode=NO_ENGINE_SUBSTITUTION
+default_storage_engine=InnoDB
+character-set-server=utf8mb4
+collation-server=utf8mb4_unicode_ci
+expire_logs_days=7