add development docker compose file

.gitignore

@@ -1,9 +1,13 @@
 
 # no extension on linux, .exe on windows
 rogueserver*
-userdata/*
+!/rogueserver/*
+/userdata/*
 secret.key
 
+# local testing
+/.data/
+
 # Jetbrains IDEs
 /.idea/
 *.iml

docker-compose.Development.yml

@@ -0,0 +1,14 @@
+services:
+  db:
+    image: mariadb:11
+    container_name: pokerogue-db-local
+    restart: on-failure
+    environment:
+      MYSQL_ROOT_PASSWORD: admin
+      MYSQL_DATABASE: pokeroguedb
+      MYSQL_USER: pokerogue
+      MYSQL_PASSWORD: pokerogue
+    ports:
+      - "3306:3306"
+    volumes:
+      - ./.data/db:/var/lib/mysql