mysql create multiple database.

docker-compose.yml

@@ -194,6 +194,7 @@ services:
         - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
       volumes:
         - ${DATA_SAVE_PATH}/mysql:/var/lib/mysql
+        - ./mysql/docker-entrypoint-initdb.d:/docker-entrypoint-initdb.d
       ports:
         - "${MYSQL_PORT}:3306"
       networks:

mysql/docker-entrypoint-initdb.d/.gitignore

+*.sql

mysql/docker-entrypoint-initdb.d/createdb.sql.example

+###
+### Copy createdb.sql.example to createdb.sql
+### then uncomment and set database name to create you need databases
+###
+
+#CREATE DATABASE IF NOT EXISTS `dev_db_1` ;
+#CREATE DATABASE IF NOT EXISTS `dev_db_2` ;
+#CREATE DATABASE IF NOT EXISTS `dev_db_3` ;