docker config done

support-portal-backend/Dockerfile

@@ -0,0 +1,15 @@
+FROM --platform=$BUILDPLATFORM maven:3.8.5-eclipse-temurin-17 AS builder
+WORKDIR /workdir/server
+COPY pom.xml /workdir/server/pom.xml
+RUN mvn dependency:go-offline
+
+COPY src /workdir/server/src
+RUN mvn package -Dmaven.test.skip=true
+RUN ls -la target/
+
+FROM eclipse-temurin:17-jre-focal
+
+EXPOSE 8080
+VOLUME /tmp
+COPY --from=builder /workdir/server/target/*.jar /app/app.jar
+ENTRYPOINT ["java","-jar","/app/app.jar"]