connect schema to mariadb container's initdb

docker-compose.yml

@@ -10,12 +10,10 @@ services:
             MARIADB_USER: catask
             MARIADB_PASSWORD: catask
         volumes:
+            - ./schema.sql:/docker-entrypoint-initdb.d/1.sql
             - db-data:/var/lib/mysql
 
     catask:
-        entrypoint: |
-            flask init-db
-            gunicorn -w 4 app:app
         ports:
             - "8000:8000"
         volumes: