added gid

Author: nishalad95

images/runtime/Dockerfile

@@ -4,7 +4,7 @@ COPY src/main/c/libfnunixsocket.so /function/runtime/lib/
 
 RUN ["/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java", "-Xshare:dump"]
 
-RUN addgroup --system --gid 1000 fn && adduser fn --uid 1000 --group fn
+RUN addgroup --system --gid 1000 fn && adduser --uid 1000 --gid 1000 fn
 
 # UseCGroupMemoryLimitForHeap looks up /sys/fs/cgroup/memory/memory.limit_in_bytes inside the container to determine
 # what the heap should be set to. This is an experimental feature at the moment, thus we need to unlock to use it.