Added docker compose for consistent MySQL setup

docker-compose.yml

@@ -0,0 +1,18 @@
+services:
+  mysql:
+    image: mysql:8.4
+    container_name: petstore-mysql
+    ports:
+      - "3306:3306"
+    environment:
+      MYSQL_ROOT_PASSWORD: rootpass
+      MYSQL_DATABASE: Petstoredb
+      MYSQL_USER: petapp
+      MYSQL_PASSWORD: petapppass
+    volumes:
+      - ./Petstoredata.sql:/docker-entrypoint-initdb.d/01-Petstoredata.sql:ro
+      - petstore_mysql_data:/var/lib/mysql
+
+volumes:
+  petstore_mysql_data:
+