41 lines
945 B
Docker
41 lines
945 B
Docker
# Multi-stage build for Java 17 Spring Boot application
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# Build stage
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FROM maven:3.9-eclipse-temurin-17-alpine AS build
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WORKDIR /build
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# Copy pom.xml and download dependencies (cached layer)
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COPY pom.xml .
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RUN mvn dependency:go-offline -B
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# Copy source and build
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COPY src ./src
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RUN mvn clean package -DskipTests -B
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# Runtime stage
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FROM eclipse-temurin:17-jre-alpine
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WORKDIR /app
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# Create non-root user
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RUN addgroup -g 1000 appuser && \
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adduser -D -u 1000 -G appuser appuser
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# Copy JAR from build stage
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COPY --from=build /build/target/*.jar application.jar
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# Change ownership
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RUN chown -R appuser:appuser /app
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# Switch to non-root user
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USER appuser
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# Expose application port
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EXPOSE 8080
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# Health check
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HEALTHCHECK --interval=30s --timeout=3s --start-period=60s --retries=3 \
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CMD wget --no-verbose --tries=1 --spider http://localhost:8080/actuator/health || exit 1
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# Run application
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ENTRYPOINT ["java", "-jar", "application.jar"]
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