spring boot - dockerfile

backend/spring-boot/Dockerfile

@@ -1,4 +1,16 @@
+FROM maven:3.9.6-amazoncorretto-17-debian AS build
+
+WORKDIR /app
+
+COPY pom.xml .
+COPY src ./src
+
+RUN mvn clean install -DskipTests
+
 FROM openjdk:17-jdk-slim
-ARG JAR_FILE=target/*.jar
-COPY ${JAR_FILE} bootstrapbugz-api.jar
+
+WORKDIR /app
+
+COPY --from=build /app/target/*.jar bootstrapbugz-api.jar
+
 ENTRYPOINT ["java", "-Dspring.profiles.active=dev", "-jar", "bootstrapbugz-api.jar"]

backend/spring-boot/README.md

@@ -1,9 +1,6 @@
 # API
 
-To start the backend via docker you need to run `mvn clean install` and after that `docker compose build bootstrapbugz-api`.
+To start the backend via docker you need to run `docker-compose up --build -d`.
 
-Then run `docker-compose up -d`
-
-and you'll find backend on http://localhost:8081/
-
-You can find OpenApi documentation here: http://localhost:8081/swagger-ui/index.html
+You'll find backend running on http://localhost:8081/
+And OpenApi documentation here: http://localhost:8081/swagger-ui/index.html

backend/spring-boot/src/main/java/org/bootstrapbugz/api/user/model/User.java

@@ -15,7 +15,6 @@
 import java.io.Serial;
 import java.io.Serializable;
 import java.time.LocalDateTime;
-import java.util.HashSet;
 import java.util.Set;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
@@ -77,7 +76,7 @@ public class User implements Serializable {
       joinColumns = @JoinColumn(name = "user_id"),
       inverseJoinColumns = @JoinColumn(name = "role_id"))
   @Column(nullable = false)
-  private Set<Role> roles = new HashSet<>();
+  private Set<Role> roles;
 
   @Override
   public boolean equals(Object o) {