Add Docker support with auto database initialization

docker-compose.yml

@@ -0,0 +1,36 @@
+services:
+  db:
+    image: mysql:8.0
+    container_name: petshop-db
+    environment:
+      MYSQL_ROOT_PASSWORD: root
+      MYSQL_DATABASE: Petstoredb
+      MYSQL_USER: petshop
+      MYSQL_PASSWORD: petshop
+    ports:
+      - "3306:3306"
+    volumes:
+      - db_data:/var/lib/mysql
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "-uroot", "-proot"]
+      interval: 5s
+      timeout: 5s
+      retries: 30
+
+  api:
+    build: .
+    container_name: petshop-api
+    environment:
+      SPRING_DATASOURCE_URL: jdbc:mysql://db:3306/Petstoredb?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC
+      SPRING_DATASOURCE_USERNAME: petshop
+      SPRING_DATASOURCE_PASSWORD: petshop
+      # Change this in real use
+      JWT_SECRET: change_me_please
+    ports:
+      - "8080:8080"
+    depends_on:
+      db:
+        condition: service_healthy
+
+volumes:
+  db_data: