remove port expose declaration in docker compose as the mariadb image already has this

add static ip address to catask network

docker-compose.yml

@@ -7,8 +7,6 @@ services:
             MARIADB_DATABASE: catask
             MARIADB_USER: catask
             MARIADB_PASSWORD: catask
-        expose:
-            - "3306/tcp"
         healthcheck:
             test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
             start_period: 10s
@@ -40,6 +38,9 @@ services:
 
 networks:
     catask:
+        driver: bridge
+        driver_opts:
+            com.docker.network.bridge.host_binding_ipv4: "127.0.0.1"
 
 volumes:
     db-data: