修改dockerfile

docker_env/django/Dockerfile

@@ -1,6 +1,10 @@
-FROM registry.cn-zhangjiakou.aliyuncs.com/dvadmin-pro/python38-base-backend:latest
+FROM python:3.8.10-slim-buster
 WORKDIR /backend
 COPY ./backend/ .
 RUN awk 'BEGIN { cmd="cp -i ./conf/env.example.py   ./conf/env.py "; print "n" |cmd; }'
-RUN python3 -m pip install -i https://pypi.tuna.tsinghua.edu.cn/simple/ -r requirements.txt
+RUN    sed -i [email protected]@mirrors.aliyun.com@g /etc/apt/sources.list && \
+  sed -i [email protected]@mirrors.aliyun.com@g /etc/apt/sources.list && \
+  sed -i [email protected]@mirrors.aliyun.com@g /etc/apt/sources.list
+RUN apt update && apt-get install -y  default-libmysqlclient-dev gcc
+RUN python3 -m pip install -i https://mirrors.aliyun.com/pypi/simple/ -r requirements.txt
 CMD ["/backend/docker_start.sh"]