Change production mode Dockerfile to support python3

test=develop

paddle/scripts/paddle_build.sh

@@ -609,7 +609,24 @@ EOF
         CMD='"true"'
     fi
 
-    cat >> ${PADDLE_ROOT}/build/Dockerfile <<EOF
+    if [ "$1" == "cp35-cp35m" ]; then
+        cat >> ${PADDLE_ROOT}/build/Dockerfile <<EOF
+    ADD python/dist/*.whl /
+    # run paddle version to install python packages first
+    RUN apt-get update && ${NCCL_DEPS}
+    RUN apt-get install -y wget python3 python3-pip libgtk2.0-dev dmidecode python3-tk && \
+        pip3 install opencv-python && pip3 install /*.whl; apt-get install -f -y && \
+        apt-get clean -y && \
+        rm -f /*.whl && \
+        ${PADDLE_VERSION} && \
+        ldconfig
+    ${DOCKERFILE_CUDNN_DSO}
+    ${DOCKERFILE_CUBLAS_DSO}
+    ${DOCKERFILE_GPU_ENV}
+    ENV NCCL_LAUNCH_MODE PARALLEL
+EOF
+    else
+        cat >> ${PADDLE_ROOT}/build/Dockerfile <<EOF
     ADD python/dist/*.whl /
     # run paddle version to install python packages first
     RUN apt-get update && ${NCCL_DEPS}
@@ -624,6 +641,8 @@ EOF
     ${DOCKERFILE_GPU_ENV}
     ENV NCCL_LAUNCH_MODE PARALLEL
 EOF
+    fi
+
     if [[ ${WITH_GOLANG:-OFF} == "ON" ]]; then
         cat >> ${PADDLE_ROOT}/build/Dockerfile <<EOF
         ADD go/cmd/pserver/pserver /usr/bin/
@@ -698,7 +717,7 @@ function main() {
       build)
         cmake_gen ${PYTHON_ABI:-""}
         build
-        gen_dockerfile
+        gen_dockerfile ${PYTHON_ABI:-""}
         ;;
       build_android)
         build_android
@@ -725,7 +744,7 @@ function main() {
         gen_html
         ;;
       dockerfile)
-        gen_dockerfile
+        gen_dockerfile ${PYTHON_ABI:-""}
         ;;
       capi)
         cmake_gen ${PYTHON_ABI:-""}