Merge pull request #40 from SpringBootCourses/#39

#39 Improve Dockerfile

Author: IlyaLisov

Dockerfile

@@ -1,7 +1,8 @@
 FROM maven:3.8.5-openjdk-17 AS build
+COPY pom.xml .
+RUN mvn dependency:go-offline
 COPY /src /src
-COPY pom.xml /
-RUN mvn -f /pom.xml clean package
+RUN mvn clean package -DskipTests
 
 FROM openjdk:17-jdk-slim
 COPY --from=build /target/*.jar application.jar