Fix Docker Problem (alshedivat#1785)

Dockerfile

@@ -1,25 +1,24 @@
-FROM bitnami/minideb:latest
+FROM ubuntu:latest
+ENV DEBIAN_FRONTEND noninteractive
 
 Label MAINTAINER Amir Pourmand
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
-    locales \ 
+    locales \
     imagemagick \
     ruby-full \
     build-essential \
     zlib1g-dev \
-    python3-pip && rm -rf /var/lib/apt/lists/*
-
+    jupyter-nbconvert && \
+    apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/apt/archives/*
 
 RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && \
     locale-gen
 
 ENV LANG=en_US.UTF-8 \
     LANGUAGE=en_US:en \
     LC_ALL=en_US.UTF-8 \
-    JEKYLL_ENV=production 
-
-RUN python3 -m pip install jupyter --break-system-packages --no-cache-dir
+    JEKYLL_ENV=production
 
 # install jekyll and dependencies
 RUN gem install jekyll bundler
@@ -30,7 +29,7 @@ ADD Gemfile /srv/jekyll
 
 WORKDIR /srv/jekyll
 
-RUN bundle install --no-cache 
+RUN bundle install --no-cache
 # && rm -rf /var/lib/gems/3.1.0/cache
 EXPOSE 8080