Add cache removal commands

Dockerfile

@@ -2,7 +2,7 @@ FROM python:3.9.17-slim-bullseye
 
 #Special gifts for mainland China users :) 
 #Change to your own preferenced mirrors if you wish, just uncomment them is fine too.
-    #Below is pip mirror and apt mirror setup
+    #Below is apt mirror setup
 RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list &&\
     apt update &&\ 
     apt install -y git curl wget build-essential gcc clang g++ make &&\
@@ -12,12 +12,15 @@ RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list &&\
     
 WORKDIR /app
 
-RUN npm config set registry https://registry.npm.taobao.org &&\
-    npm install -g @mermaid-js/mermaid-cli &&\
+RUN npm install -g @mermaid-js/mermaid-cli &&\
     git clone https://github.com/geekan/metagpt
 RUN cd metagpt &&\
     mkdir workspace &&\
+    #This sets the pip mirror, you can delete it if you need to.
     pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/ &&\
-    pip install -r requirements.txt &&\
+    pip install -r requirements.txt --no-cache-dir &&\
     python setup.py install
 
+RUN pip cache purge &&\
+    apt autoclean
+