don't expose the port by default (security)

Author: dunglas

doctrine/doctrine-bundle/1.6/manifest.json

@@ -10,15 +10,15 @@
         "#1": "Format described at https://www.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/configuration.html#connecting-using-a-url",
         "#2": "For an SQLite database, use: \"sqlite:///%kernel.project_dir%/var/data.db\"",
         "#3": "For a PostgreSQL database, use: \"postgresql://db_user:db_password@127.0.0.1:5432/db_name?serverVersion=11&charset=utf8\"",
-        "#4": "For the Docker integration, use: \"mysql://symfony:ChangeMe@db:3306/app?serverVersion=mariadb-10.5\"",
+        "#4": "For the Docker integration, use: \"mysql://symfony:ChangeMe@db:3306/app?serverVersion=mariadb-10.5.6\"",
         "#5": "IMPORTANT: You MUST configure your server version, either here or in config/packages/doctrine.yaml",
         "DATABASE_URL": "mysql://db_user:db_password@127.0.0.1:3306/db_name?serverVersion=5.7"
     },
     "dockerfile": ["RUN docker-php-ext-install pdo_mysql"],
     "docker-compose": {
         "services": [
             "db:",
-            "  image: mariadb:10.4",
+            "  image: mariadb:10.5.6",
             "  environment:",
             "    - MYSQL_DATABASE=app",
             "    # You should definitely change the password in production",
@@ -29,8 +29,9 @@
             "    - db-data:/var/lib/mysql:rw",
             "    # You may use a bind-mounted host directory instead, so that it is harder to accidentally remove the volume and lose all your data!",
             "    # - ./docker/db/data:/var/lib/mysql:rw",
-            "  ports:",
-            "    - \"3306\""
+            "  # To expose the port publicly",
+            "  # ports:",
+            "  #   - \"3306\""
         ],
         "volumes": ["db-data: {}"]
     }