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a-service/Dockerfile

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+FROM openjdk:25-jdk-slim
+
+WORKDIR /app
+
+COPY target/*.jar app.jar
+
+EXPOSE 8091
+
+ENTRYPOINT ["java","-jar", "app.jar"]
+
+## Perform the extraction in a separate builder container
+#FROM bellsoft/liberica-openjre-debian:25-cds AS builder
+#WORKDIR /builder
+## This points to the built jar file in the target folder
+## Adjust this to 'build/libs/*.jar' if you're using Gradle
+#ARG JAR_FILE=target/*.jar
+## Copy the jar file to the working directory and rename it to application.jar
+#COPY ${JAR_FILE} application.jar
+## Extract the jar file using an efficient layout
+#RUN java -Djarmode=tools -jar application.jar extract --layers --destination extracted
+#
+## This is the runtime container
+#FROM bellsoft/liberica-openjre-debian:25-cds
+#WORKDIR /application
+## Copy the extracted jar contents from the builder container into the working directory in the runtime container
+## Every copy step creates a new docker layer
+## This allows docker to only pull the changes it really needs
+#COPY --from=builder /builder/extracted/dependencies/ ./
+#COPY --from=builder /builder/extracted/spring-boot-loader/ ./
+#COPY --from=builder /builder/extracted/snapshot-dependencies/ ./
+#COPY --from=builder /builder/extracted/application/ ./
+## Execute the AOT cache training run
+#RUN java -XX:AOTCacheOutput=app.aot -Dspring.context.exit=onRefresh -jar application.jar
+## Start the application jar with AOT cache enabled - this is not the uber jar used by the builder
+## This jar only contains application code and references to the extracted jar files
+## This layout is efficient to start up and AOT cache friendly
+#ENTRYPOINT ["java", "-XX:AOTCache=app.aot", "-jar", "application.jar"]