Dockerfile

# Multi-stage Dockerfile for contract-first-integrations
# Stage 1: Build
FROM eclipse-temurin:25-jdk-alpine AS build

WORKDIR /app

# Copy Maven files
COPY pom.xml .
COPY checkstyle.xml .
COPY contracts ./contracts

# Download dependencies (cached if pom.xml unchanged)
RUN apk add --no-cache maven && \
    mvn dependency:go-offline -B

# Copy source code
COPY src ./src

# Build application (skip tests in Docker build)
RUN mvn clean package -DskipTests -B

# Stage 2: Runtime
FROM eclipse-temurin:25-jre-alpine

WORKDIR /app

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

# Copy JAR from build stage
COPY --from=build /app/target/*.jar app.jar

# Change ownership
RUN chown spring:spring app.jar

# Switch to non-root user
USER spring:spring

# Environment variables
ENV JAVA_OPTS="" \
    SPRING_PROFILES_ACTIVE=prod

# Expose port
EXPOSE 8080

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

# Run application
ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar app.jar"]