chore(dockerfile): use drycc/base image

Author: lijianguo

Dockerfile

@@ -1,13 +1,14 @@
-FROM python:3.8-alpine
+FROM docker.io/drycc/base:bullseye
 
+ENV PYTHON_VERSION=3.10.2
 COPY . /app
 WORKDIR /app
 
-RUN python -m venv /usr/local/env \
+RUN export DEBIAN_FRONTEND=noninteractive \
+  && install-stack python $PYTHON_VERSION && . init-stack \
+  && python -m venv /usr/local/env \
   && source /usr/local/env/bin/activate \
   && pip install -r requirements.txt
 
-ENV PATH /usr/local/env/bin:$PATH
-
 EXPOSE 8000
-CMD ["mkdocs", "serve", "-a", "0.0.0.0:8000"]
+CMD ["PATH=/usr/local/env/bin:\$PATH", "mkdocs", "serve", "-a", "0.0.0.0:8000"]