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32 lines
882 B
Docker
32 lines
882 B
Docker
# Multi-stage Dockerfile for Spring Boot Application
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# TESTING NOTE
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FROM maven:3.9-eclipse-temurin-17 AS build
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WORKDIR /app
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# Copy dependency files first for better caching
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COPY pom.xml .
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RUN mvn dependency:go-offline -B
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# Copy source code and build
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COPY src ./src
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RUN mvn clean package -DskipTests
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# Runtime stage - lean JRE for Spring Boot executable JAR (~200MB vs ~500MB Tomcat)
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FROM mcr.microsoft.com/openjdk/jdk:17-ubuntu
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WORKDIR /app
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# Create non-root user for security
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RUN groupadd -g 1001 appuser && useradd -u 1001 -g appuser -s /bin/sh appuser && \
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chown -R appuser:appuser /app
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USER appuser
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COPY --from=build /app/target/*.jar app.jar
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EXPOSE 8080
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# Health check
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HEALTHCHECK --interval=30s --timeout=3s --start-period=30s --retries=3 \
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CMD wget --no-verbose --tries=1 --spider http://localhost:8080/actuator/health || exit 1
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CMD ["java", "-jar", "app.jar"]
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