aproach with build.sh

Dockerfile.build

@@ -1,5 +1,3 @@
 FROM openjdk:8-jdk-alpine
 WORKDIR /build
-COPY . .
+CMD [ "./build.sh" ]
-RUN ./mvnw -B -e dependency:go-offline
-RUN ./mvnw package

Dockerfile.run

@@ -1,5 +1,5 @@
 FROM openjdk:8-jre-alpine
-WORKDIR /app/target
+WORKDIR /app
-COPY app.jar .
 EXPOSE 8080
 CMD [ "java", "-jar", "-Dspring.profiles.active=mysql" ,"app.jar" ]
+COPY /target/app.jar .

Jenkinsfile

@@ -9,11 +9,11 @@ pipeline {
 				dockerfile {
 					filename 'Dockerfile.build'
 					dir '.'
-					args '-v $HOME/.m2:/root/.m2 --name petclinic_build'
+					args '-v $HOME/.m2:/root/.m2'
 				}
 			}
 			steps {
-				sh 'docker cp petclinic_build:/build/target/app.jar .'
+				echo 'Build done'
 			}
 		}
 

build.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+if [[ -f spring-petclinic ]]; then
+	cd spring-petclinic
+	git chekcout jenkins
+	git pull jenkins
+else
+	git clone https://github.com/hllvc/spring-petclinic.git
+	cd spring-petclinic
+	git checkout jenkins
+fi
+
+./mvnw package