dockerfile

Dockerfile

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+# Multi-stage build for Spring Boot application
+FROM maven:3.9.6-openjdk-21-slim AS build
+
+# Set working directory
+WORKDIR /app
+
+# Copy pom.xml and download dependencies
+COPY pom.xml .
+RUN mvn dependency:go-offline -B
+
+# Copy source code
+COPY src ./src
+
+# Build the application
+RUN mvn clean package -DskipTests
+
+# Runtime stage
+FROM openjdk:21-jre-slim
+
+# Set working directory
+WORKDIR /app
+
+# Create non-root user for security
+RUN groupadd -r konturai && useradd -r -g konturai konturai
+
+# Install necessary packages
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy the JAR file from build stage
+COPY --from=build /app/target/konturai-*.jar app.jar
+
+# Change ownership to non-root user
+RUN chown konturai:konturai app.jar
+
+# Switch to non-root user
+USER konturai
+
+# Expose port
+EXPOSE 8080
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=60s --retries=3 \
+    CMD curl -f http://localhost:8080/actuator/health || exit 1
+
+# Set JVM options for containerized environment
+ENV JAVA_OPTS="-Xmx512m -Xms256m -XX:+UseContainerSupport -XX:MaxRAMPercentage=75.0"
+
+# Run the application
+ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar app.jar"]