refractor python docker

Change-Id: I4e31e5a1c08fb0c1a226a55e3fc50423dd07dac8

python/Dockerfile

@@ -17,9 +17,8 @@
 FROM python:3
 MAINTAINER xt
 
-WORKDIR /var/app
-
-ENV PATH /opt/conda/bin:$PATH
+ENV PYTHONUNBUFFERED 1
+ENV TZ Asia/Shanghai
 
 COPY sources.list /etc/apt/sources.list
 COPY requirements.txt ./
@@ -31,6 +30,4 @@ RUN apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 40976EAF437D05B5 \
     && pip install --no-cache-dir --trusted-host mirrors.aliyun.com \
          -i http://mirrors.aliyun.com/pypi/simple -r requirements.txt
 
-ENV TZ Asia/Shanghai
-
-CMD [ "python", "/usr/local/app/startup.py" ]
+CMD [ "/bin/bash" ]