not working

Dockerfile

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+# Use a JDK base image for building
+FROM gradle:8.10.2-jdk17-alpine AS builder
+
+# Set working directory
+WORKDIR /app
+
+# Copy build files
+COPY build.gradle.kts settings.gradle.kts ./
+COPY src ./src
+
+# Build the application
+RUN gradle build --no-daemon
+
+# Use a lightweight JRE image for running
+FROM eclipse-temurin:21-jre
+
+# Set working directory
+WORKDIR /app
+
+# Copy the built JAR from the builder stage
+COPY --from=builder /app/build/libs/*.jar app.jar
+
+# Expose the port (default for Spring Boot)
+EXPOSE 8080
+
+# Run the application
+ENTRYPOINT ["java", "-jar", "app.jar"]