created working Dockerfile

Dockerfile

@@ -1,6 +1,11 @@
+FROM maven:3-eclipse-temurin-17 AS maven
+COPY pom.xml .
+COPY src /src
+RUN MAVEN_OPTS="-Xmx3G -Xss2m" mvn clean package
+
 FROM openjdk:17-jdk-alpine
-WORKDIR /
-COPY target/obp-hola-app-*-SNAPSHOT.jar obp-hola.jar
+
+COPY --from=maven target/obp-hola-app-*-SNAPSHOT.jar obp-hola.jar
 COPY application.properties application.properties
 #COPY  --chmod=777 entrypoint.sh entrypoint.sh
 #RUN chmod +x entrypoint.sh