40 lines
930 B
Docker
40 lines
930 B
Docker
# =======================
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# Builder stage
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# =======================
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FROM maven:3.8.5-eclipse-temurin-17 AS builder
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WORKDIR /workdir/server
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# Copy only pom.xml first for better layer caching
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COPY pom.xml .
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# Download dependencies with optimization flags
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RUN mvn dependency:resolve dependency:resolve-plugins -B -T 1C
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# Copy source code
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COPY src ./src
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# Build the application
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RUN mvn package -B -T 1C -DskipTests -Dmaven.javadoc.skip=true
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# Verify the JAR was created
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RUN ls -la target/
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# =======================
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# Runtime stage
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# =======================
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FROM eclipse-temurin:17-jre-focal
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# Expose port and set volume
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EXPOSE 8080
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VOLUME /tmp
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# Create app directory
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RUN mkdir -p /app
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# Copy the JAR from builder stage into /app directory
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COPY --from=builder /workdir/server/target/*.jar /app/
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# Entry point: dynamically run the first JAR in /app
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ENTRYPOINT ["sh", "-c", "java -jar /app/$(ls /app | grep .jar | head -n1)"]
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