Dockerfile_2_with_layer

# 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

#
# Perform the extraction in a separate builder container
#
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 the jar file using an efficient layout
RUN java -Djarmode=layertools -jar /app/app.jar extract


# This is the runtime container
FROM eclipse-temurin:25-alpine
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 /dependencies/ ./
COPY --from=builder /spring-boot-loader/ ./
COPY --from=builder /snapshot-dependencies/ ./
COPY --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_2  . -f ./Dockerfile_2_with_layer
# docker run -d -p 8222:8080  spring-boot-efficient-search-api_2

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

#[+] Building 1.4s (17/17) FINISHED