initial commit

Change-Id: I9c68c43e939d2c1a3b95a68b71ecc5ba861a4df5

Dockerfile

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