Spring-Boot-efficient-search-API/Dockerfile_5_custom_jre_with_layer at main · Raouf25/Spring-Boot-efficient-search-API · GitHub

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# Définir une variable globale pour le fichier JAR
ARG JAR_FILE=spring-boot-efficient-search-api-*.jar

##
## Build stage
##
#FROM maven:3.9.11-eclipse-temurin-24-alpine AS maven_build
#COPY . /.
#RUN mvn clean package -DskipTests

FROM eclipse-temurin:25-alpine AS builder

ARG JAR_FILE
#COPY --from=maven_build ./target/${JAR_FILE} /app/app.jar
COPY  ./target/${JAR_FILE} /app/app.jar
# extract layers
RUN java -Djarmode=layertools -jar /app/app.jar extract

##########################
#
# Step 1: Build a custom JRE
#
FROM eclipse-temurin:25-alpine AS build-jre

# Copy the application JAR file
# Rendre la variable ARG disponible dans ce stage
ARG JAR_FILE
#COPY --from=maven_build ./target/${JAR_FILE} /app/app.jar
COPY ./target/${JAR_FILE} /app/app.jar
WORKDIR /app

# Install required tools for jlink
RUN apk add --no-cache binutils

# Unpack the JAR, analyze dependencies, and build a minimal JRE
RUN mkdir -p unpacked && \
    unzip app.jar -d unpacked && \
    $JAVA_HOME/bin/jdeps \
    --ignore-missing-deps \
    --print-module-deps \
    -q \
    --recursive \
    --multi-release 24 \
    --class-path="unpacked/BOOT-INF/lib/*" \
    --module-path="unpacked/BOOT-INF/lib/*" \
    app.jar > /dependencies.info && \
    rm -rf unpacked && \
    $JAVA_HOME/bin/jlink \
         --verbose \
         --add-modules $(cat /dependencies.info) \
         --strip-debug \
         --no-man-pages \
         --no-header-files \
         --compress=zip-6 \
         --output /customjre

RUN file0="$(cat /dependencies.info)" && echo $file0

##########################
#
# Step 2: Build the main application image
#
FROM alpine:latest

# Set environment variables for the JRE
ENV JAVA_HOME=/jre
ENV PATH="${JAVA_HOME}/bin:${PATH}"

# Copy the custom JRE from the previous stage
COPY --from=build-jre /customjre $JAVA_HOME

# Add a non-root user for the application
ARG APPLICATION_USER=appuser
RUN adduser --no-create-home -u 1000 -D $APPLICATION_USER

# Configure the working directory
RUN mkdir /app && chown -R $APPLICATION_USER /app

# Set the working directory
WORKDIR /app

# Copy the application JAR file
#ARG JAR_FILE
#COPY --chown=1000:1000 --from=maven_build ./target/${JAR_FILE} /app/app.jar
# Expose the application port
EXPOSE 8080
# Use the layers mecanism, this will prevent the download of the project depedencies each time we build a new image
COPY --chown=spring:spring --from=builder dependencies/ ./
COPY --chown=spring:spring --from=builder spring-boot-loader/ ./
COPY --chown=spring:spring --from=builder snapshot-dependencies/ ./
COPY --chown=spring:spring --from=builder application/ ./

# Define the entrypoint to run the application
ENTRYPOINT ["java", "org.springframework.boot.loader.launch.JarLauncher"]


# docker build -t spring-boot-efficient-search-api_5  . -f ./Dockerfile_5_custom_jre_with_layer
# docker run -d -p 8555:8080  spring-boot-efficient-search-api_5
# docker run -t -p 8555:8080  spring-boot-efficient-search-api_5

# docker images --filter=reference='spring-boot-efficient-search-api*' | sort

#[+] Building 9.4s (23/23) FINISHED
# docker stats