feat: add Docker setup

Dockerfile.backend

@@ -0,0 +1,10 @@
+FROM gradle:9.3.1-jdk21-alpine AS build
+WORKDIR /app
+COPY build.gradle.kts settings.gradle.kts gradle.properties ./
+COPY src src
+RUN echo "org.gradle.jvmargs=-Xmx1g" >> gradle.properties && gradle bootJar --no-daemon
+
+FROM eclipse-temurin:21-jre
+WORKDIR /app
+COPY --from=build /app/build/libs/*.jar app.jar
+ENTRYPOINT ["java", "-jar", "app.jar"]

Dockerfile.frontend

@@ -0,0 +1,11 @@
+FROM node:22-alpine AS build
+WORKDIR /app
+COPY frontend/package*.json ./
+RUN npm ci
+COPY frontend .
+RUN npm run build
+
+FROM nginx:alpine
+COPY --from=build /app/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 3000

README.md

@@ -46,24 +46,15 @@ Key patterns:
 
 ## Prerequisites
 
-- Java 21
-- Docker
+- Docker (at least 4 GB memory allocated to the Docker VM)
 
 ## Getting Started
 
-Start the database:
-
-```sh
-docker compose up -d
-```
-
-Run the application:
-
 ```sh
-./gradlew bootRun
+docker compose up --build
 ```
 
-The API is available at `http://localhost:8080`. Swagger UI is at `http://localhost:8080/docs/swagger-ui.html`.
+The frontend is available at `http://localhost:3000`. The API is available at `http://localhost:8080`. Swagger UI is at `http://localhost:8080/docs/swagger-ui.html`.
 
 ## Running Tests
 

docker-compose.yml

@@ -13,5 +13,26 @@ services:
       timeout: 10s
     volumes:
       - ./tmp/postgresql:/var/lib/postgresql/data
+
+  backend:
+    build:
+      context: .
+      dockerfile: Dockerfile.backend
+    environment:
+      SPRING_DATASOURCE_URL: jdbc:postgresql://database:5432/interview
+      SPRING_DATASOURCE_USERNAME: postgres
+      SPRING_DATASOURCE_PASSWORD: postgres
+    ports:
+      - "8080:8080"
+    depends_on:
+      database:
+        condition: service_healthy
+
+  frontend:
+    build:
+      context: .
+      dockerfile: Dockerfile.frontend
     ports:
-      - "5432:5432"
+      - "3000:3000"
+    depends_on:
+      - backend

nginx.conf

@@ -0,0 +1,16 @@
+server {
+    listen 3000;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location /api {
+        proxy_pass http://backend:8080;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+    }
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}