Swtich to use tmp folder to avoid permission issue

Signed-off-by: eyuen <[email protected]>

Author: elsony

docker/Dockerfile

@@ -11,10 +11,7 @@
 ####
 FROM quay.io/eclipse/che-java11-maven:nightly
 
-USER 1001
-RUN mkdir /build \
-    && chown 1001:0 /build \
-    && chmod "g+rw" /build
+WORKDIR /tmp
 
 # Build dependency offline to streamline build
 COPY pom.xml .
@@ -24,7 +21,7 @@ COPY src src
 RUN mvn package -Dmaven.test.skip=true
 
 FROM openjdk:11-jdk
-COPY --from=0 /build/target/demo-0.0.1-SNAPSHOT.jar /app/target/demo-0.0.1-SNAPSHOT.jar
+COPY --from=0 /tmp/target/demo-0.0.1-SNAPSHOT.jar /app/target/demo-0.0.1-SNAPSHOT.jar
 
 EXPOSE 8081
 ENTRYPOINT [ "java", "-jar", "/app/target/demo-0.0.1-SNAPSHOT.jar" ]