Fix : ajout multi layer spring boot dans dockerfile

Dockerfile

@@ -1,16 +1,6 @@
-###
 # Image pour la compilation
 FROM maven:3-eclipse-temurin-17 as build-image
 WORKDIR /build/
-# Installation et configuration de la locale FR
-RUN apt update && DEBIAN_FRONTEND=noninteractive apt -y install locales
-RUN sed -i '/fr_FR.UTF-8/s/^# //g' /etc/locale.gen && \
-    locale-gen
-ENV LANG fr_FR.UTF-8
-ENV LANGUAGE fr_FR:fr
-ENV LC_ALL fr_FR.UTF-8
-
-
 # On lance la compilation Java
 # On débute par une mise en cache docker des dépendances Java
 # cf https://www.baeldung.com/ops/docker-cache-maven-dependencies
@@ -23,27 +13,32 @@ RUN mvn --batch-mode \
         -Dmaven.test.skip=false \
         -Duser.timezone=Europe/Paris \
         -Duser.language=fr \
-        package spring-boot:repackage
+        package
 
+FROM maven:3-eclipse-temurin-17 as kbart2kafka-builder
+WORKDIR application
+ARG JAR_FILE=build/target/kbart2kafka.jar
+COPY --from=build-image ${JAR_FILE} kbart2kafka.jar
+RUN java -Djarmode=layertools -jar kbart2kafka.jar extract
 
-###
-# Image pour le module API
-#FROM tomcat:9-jdk17 as api-image
-#COPY --from=build-image /build/web/target/*.war /usr/local/tomcat/webapps/ROOT.war
-#CMD [ "catalina.sh", "run" ]
 FROM eclipse-temurin:17-jdk as kbart2kafka-image
 RUN apt-get update
 RUN apt-get install -y locales locales-all
 ENV LC_ALL fr_FR.UTF-8
 ENV LANG fr_FR.UTF-8
 ENV LANGUAGE fr_FR.UTF-8
-WORKDIR /app/
-COPY --from=build-image /build/target/kbart2kafka.jar /app/kbart2kafka.jar
+ENV TZ=Europe/Paris
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 RUN mkdir /app/run
-RUN cp /app/*.jar /app/run
-RUN chmod 777 /app/run/*
+WORKDIR /app/run
+
+COPY --from=kbart2kafka-builder application/dependencies/ ./
+COPY --from=kbart2kafka-builder application/spring-boot-loader/ ./
+COPY --from=kbart2kafka-builder application/snapshot-dependencies/ ./
+COPY --from=kbart2kafka-builder application/application/ ./
+COPY --from=kbart2kafka-builder application/*.jar ./kbart2kafka.jar
+RUN chmod +x /app/run/kbart2kafka.jar
 RUN touch app.log
 RUN chmod 777 app.log
-ENV TZ=Europe/Paris
-RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 ENTRYPOINT ["tail","-f","app.log"]
+

pom.xml

@@ -211,32 +211,6 @@
 
     <!-- Pour que maven se charge de générer les releases -->
     <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <version>3.1.1</version>
-                <configuration>
-                    <archive>
-                        <manifest>
-                            <mainClass>fr.abes.kbart2kafka.Kbart2kafkaApplication</mainClass>
-                        </manifest>
-                    </archive>
-                    <descriptorRefs>
-                        <descriptorRef>jar-with-dependencies</descriptorRef>
-                    </descriptorRefs>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>make-assembly</id>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>single</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
         <finalName>${jarName}</finalName>
         <resources>
             <resource>
@@ -277,6 +251,10 @@
                     <artifactId>spring-boot-maven-plugin</artifactId>
                     <version>2.3.5.RELEASE</version>
                     <configuration>
+                        <layers>
+                            <enabled>true</enabled>
+                            <includeLayerTools>true</includeLayerTools>
+                        </layers>
                         <mainClass>fr.abes.kbart2kafka.Kbart2kafkaApplication</mainClass>
                     </configuration>
                     <executions>