修正pdf生成问题

Dockerfile

@@ -1,10 +1,14 @@
-FROM ubuntu:20.04  AS build-stage
+FROM lscr.io/linuxserver/calibre:latest  AS build-stage
 ENV NODE_VERSION=10.24.1
-COPY docker/etc /etc
-
-RUN apt-get update
+ENV DEBIAN_FRONTEND noninteractive
+RUN ebook-convert --version
+RUN sed -i 's/archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list \
+  && sed -i 's/security.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list \
+  && apt-get update \
+  && apt-get install --force-yes --no-install-recommends wget fonts-wqy-microhei \
+  libgl1-mesa-glx  libegl1 libxkbcommon0 libopengl0 -y \
+  && apt-get clean
 
-RUN apt-get install -y wget
 SHELL ["/bin/bash", "-c"]
 RUN wget https://mirrors.huaweicloud.com/nodejs/v${NODE_VERSION}/node-v${NODE_VERSION}-linux-x64.tar.gz
 RUN mkdir -p /usr/local/node && tar -zxvf node-v${NODE_VERSION}-linux-x64.tar.gz -C /usr/local/node
@@ -14,18 +18,8 @@ RUN npm config set registry https://mirrors.huaweicloud.com/repository/npm/
 RUN npm install gitbook-cli -g
 RUN gitbook fetch  3.2.3
 
-ENV DEBIAN_FRONTEND noninteractive
-# 官网给的安装依赖说明 https://calibre-ebook.com/download_linux
-RUN apt-get install python xdg-utils xz-utils libegl1 libopengl0 -yq
-RUN wget --no-check-certificate -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sh /dev/stdin
-RUN ebook-convert --version
-# 官网未提及的依赖
-RUN apt-get install libnss3 libxdamage1 -y
-# 中文字体
-RUN apt-get install -y --force-yes --no-install-recommends fonts-wqy-microhei
 RUN useradd -ms /bin/bash gitbook
 RUN chown gitbook:gitbook -R /opt
-# RUN npm install gitbook -g
 
 USER gitbook
 RUN gitbook current

gen_pdf.sh

@@ -28,7 +28,6 @@ BUILD_TAG=yunnysunny/nodebook:latest
 mkdir -p output
 
 # load_cache ${SAVE_NAME}
-docker pull ubuntu:20.04
 docker build --target build-stage \
     --tag ${BUILD_TAG}  \
     --cache-from type=local,src=${CACHE_FILE} \