change docker image based on debian instead of ubuntu due to the chan… (

openethereum#10336)

* change docker image based on debian instead of ubuntu due to the changes of the build container

scripts/docker/hub/Dockerfile

@@ -1,5 +1,5 @@
-FROM ubuntu:xenial
-LABEL MAINTAINER="Parity Technologies devops-team@parity.io"
+FROM debian:stretch
+LABEL MAINTAINER="Parity Technologies <devops-team@parity.io>"
 
 # install tools and dependencies
 RUN apt update && apt install -y --no-install-recommends openssl libudev-dev file curl jq
@@ -15,15 +15,17 @@ RUN apt autoremove -y \
 RUN groupadd -g 1000 parity \
   && useradd -m -u 1000 -g parity -s /bin/sh parity
 
-# add parity to docker image
+WORKDIR /home/parity
+
+# add parity-ethereum to docker image
 COPY artifacts/x86_64-unknown-linux-gnu/parity /bin/parity
-RUN echo "#!/bin/bash \n /bin/parity \$@" > ./entrypoint.sh
+
 COPY scripts/docker/hub/check_sync.sh /check_sync.sh
 
 # switch to user parity here
 USER parity
 
 VOLUME [ "/home/parity/.local/share/io.parity.ethereum" ]
 EXPOSE 5001 8080 8082 8083 8545 8546 8180 30303/tcp 30303/udp
-# setup ENTRYPOINT
+
 ENTRYPOINT ["/bin/parity"]