optimize

Dockerfile

@@ -1,9 +1,12 @@
 FROM maven:3-jdk-8-alpine as builder
 WORKDIR /app
-COPY . .
-RUN mvn package
+COPY pom.xml .
+RUN mvn dependency:resolve dependency:go-offline -s /usr/share/maven/ref/settings-docker.xml
+COPY src ./src
+RUN mvn package -Djar.finalName=dddsample -s /usr/share/maven/ref/settings-docker.xml
 
 FROM java:8-jdk-alpine as runner
 WORKDIR /app
-COPY --from=builder /app/target/dddsample*.jar /app/
-CMD java -jar dddsample*.jar 
+COPY --from=builder /app/target/dddsample.jar /app/
+CMD ["java", "-jar", "dddsample.jar"] 
+