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47 lines
1.5 KiB
Docker
47 lines
1.5 KiB
Docker
# ===== Stage 1: Build with Maven =====
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FROM eclipse-temurin:21-jdk-alpine AS builder
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ARG MAVEN_VERSION=3.9.9
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ENV MAVEN_HOME=/opt/maven
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ENV PATH=${MAVEN_HOME}/bin:${PATH}
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# Install required tools quietly and set up Maven
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RUN set -eux; \
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apk add --no-cache curl tar bash openssl >/dev/null; \
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echo "Downloading Maven ${MAVEN_VERSION}..."; \
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curl -fsSL "https://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz" -o /tmp/maven.tar.gz; \
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mkdir -p /opt >/dev/null; \
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tar -xzf /tmp/maven.tar.gz -C /opt >/dev/null; \
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ln -s /opt/apache-maven-${MAVEN_VERSION} ${MAVEN_HOME}; \
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rm /tmp/maven.tar.gz; \
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echo "✅ Maven ${MAVEN_VERSION} installed successfully."
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WORKDIR /build
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# Copy pom.xml and prefetch dependencies silently
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COPY pom.xml .
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RUN mvn -B -q dependency:go-offline
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# Copy source code
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COPY src ./src
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# Build project (skip tests, quiet mode)
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RUN mvn -B -q clean package -DskipTests
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# ===== Stage 2: Runtime image =====
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FROM eclipse-temurin:21-jre-alpine
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RUN addgroup -S spring && adduser -S spring -G spring
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USER spring:spring
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WORKDIR /app
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COPY --from=builder /build/target/*.jar app.jar
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EXPOSE 8080
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# Optional: Health check (Spring Boot actuator)
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HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 \
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CMD wget -qO- http://localhost:8080/actuator/health | grep '"status":"UP"' || exit 1
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ENTRYPOINT ["java", "-XX:+UseContainerSupport", "-XX:MaxRAMPercentage=75.0", "-jar", "app.jar"] |