# Multi-stage build for Spring Boot application
FROM eclipse-temurin:21-jre-alpine AS builder
WORKDIR /app
COPY build/libs/*.jar app.jar
RUN java -Djarmode=layertools -jar app.jar extract

FROM eclipse-temurin:21-jre-alpine
WORKDIR /app

# Create non-root user
RUN addgroup -S spring && adduser -S spring -G spring
USER spring:spring

# Copy layers from builder
COPY --from=builder /app/dependencies/ ./
COPY --from=builder /app/spring-boot-loader/ ./
COPY --from=builder /app/snapshot-dependencies/ ./
COPY --from=builder /app/application/ ./

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=60s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:8080/api/v1/events/actuator/health || exit 1

ENTRYPOINT ["java", "org.springframework.boot.loader.launch.JarLauncher"]