Dockerfile

FROM eclipse-temurin:21-jdk-alpine AS builder

WORKDIR /app

# Copy Maven wrapper and pom.xml first for better caching
COPY mvnw pom.xml ./
COPY .mvn .mvn

RUN chmod +x ./mvnw
# Download dependencies this layer will be cached if pom.xml doesn't change
RUN ./mvnw dependency:go-offline -B

COPY src src

RUN ./mvnw clean package -DskipTests

# Runtime stage
FROM eclipse-temurin:21-jre-alpine

# Install Chrome and dependencies for Selenium
RUN apk add --no-cache \
    chromium \
    chromium-chromedriver \
    fontconfig \
    freetype \
    ttf-dejavu \
    && rm -rf /var/cache/apk/*

# Create non-root user for security
RUN addgroup -g 1001 -S appgroup && \
    adduser -S appuser -u 1001 -G appgroup

# Set Chrome path for Selenium WebDriver Manager
ENV CHROME_BIN=/usr/bin/chromium-browser
ENV CHROME_DRIVER=/usr/bin/chromedriver

WORKDIR /app

# Copy the built JAR from builder stage
COPY --from=builder /app/target/*.jar app.jar

# Change ownership to non-root user
RUN chown -R appuser:appgroup /app

# Switch to non-root user
USER appuser

EXPOSE 8080

# Run the application
ENTRYPOINT ["java", "-jar", "app.jar"]