anchor.diff:      make -j `getconf _NPROCESSORS_ONLN` BUILD_TLS=yes && make PREFIX=/opt/redis install
   
   # stage. 2 Flink & bigdl & Scala
  -FROM ubuntu:18.04 as bigdl
  +FROM ubuntu:20.04 as bigdl
   ENV JAVA_HOME				/usr/lib/jvm/java-8-openjdk-amd64
   ARG FLINK_VERSION=1.11.3
   ENV FLINK_VERSION ${FLINK_VERSION}
  
positive.code: ARG SCALA_SUB_VERSION_NUM=10
  
  # stage.1 Redis
  FROM occlum/occlum:0.24.0-ubuntu18.04 as redis-tls
  
  WORKDIR /opt
  
  RUN apt-get update && \
      DEBIAN_FRONTEND="noninteractive" apt-get install -y --no-install-recommends \
          git build-essential coreutils ca-certificates && \
      apt-get clean
  
  RUN git clone https://github.com/openssl/openssl.git && \
  
negative.code: 
  COPY --from=redis-tls /opt/ssl /opt/ssl
  COPY --from=redis-tls /opt/redis /opt/redis
  COPY --from=bigdl /opt/scala-${SCALA_VERSION}.${SCALA_SUB_VERSION_NUM}  /opt/scala-${SCALA_VERSION}.${SCALA_SUB_VERSION_NUM}
  COPY --from=bigdl /opt/flink-${FLINK_VERSION} /opt/flink-${FLINK_VERSION}
  COPY --from=bigdl /opt/resnet50 /opt/resnet50
  COPY --from=bigdl /opt/bigdl-serving*-jar-with-dependencies.jar ${BIGDL_HOME}/bigdl-serving-jar-with-dependencies.jar
  COPY --from=bigdl /opt/bigdl-serving*-http.jar ${BIGDL_HOME}/bigdl-serving-http.jar
  
  # RUN apt-get update && \
  #     DEBIAN_FRONTEND="noninteractive" apt-get install -y --no-install-recommends \
  #         build-essential ca-certificates openjdk-11-jdk \
  #         curl tzdata wget netcat gnupg2 jq make gdb libfuse-dev libtool \
  #         libprotobuf-c-dev protobuf-c-compiler libcurl4-openssl-dev libprotobuf-dev
  # Add 01.org & key
  # RUN echo 'deb [arch=amd64] https://download.01.org/intel-sgx/sgx_repo/ubuntu bionic main' | tee /etc/apt/sources.list.d/intelsgx.list && \
  #     wget -qO - https://download.01.org/intel-sgx/sgx_repo/ubuntu/intel-sgx-deb.key | apt-key add -
  
  # RUN echo 'deb [arch=amd64] https://occlum.io/occlum-package-repos/debian bionic main' | tee /etc/apt/sources.list.d/occlum.list && \
  #     wget -qO - https://occlum.io/occlum-package-repos/debian/public.key | apt-key add -
  
  # RUN apt-get update && \
  #     DEBIAN_FRONTEND="noninteractive" apt-get install -y --no-install-recommends \
  #         build-essential ca-certificates openjdk-11-jdk curl wget netcat net-tools \
  #         gnupg2 vim jq make gdb libfuse-dev libtool \
  #         libsgx-dcap-ql libsgx-epid libsgx-urts libsgx-quote-ex libsgx-uae-service \
  #         libsgx-dcap-quote-verify-dev \
  #         occlum && \
  #     apt-get clean
  
  # RUN echo "source /etc/profile" >> $HOME/.bashrc 
  
  
  # Cluster Serving config
  