Add pgf-pie to Latex in docker

docker/Dockerfile

@@ -4,15 +4,9 @@ ENV TZ=Europe/Paris
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 RUN apt-get update && apt-get -y install zip gnupg2 wget nano git curl csvkit python3.8-venv python3-wheel python3-pip libcairo2-dev pkg-config python3-dev p7zip-full jq gdal-bin parallel postgresql-client texlive-xetex optipng imagemagick-6.q16hdri texlive-lang-french recode
 
-# Configure Latex
+# Add pgf-pie to Latex
 RUN tlmgr init-usertree
-ENV PKG_HOME=~/texmf/tex/generic
-ENV CTAN_MIRROR=https://mirrors.ctan.org/graphics/pgf/contrib
-ENV ZIP_FILE=pgf-pie.zip
-
-RUN mkdir -p "${PKG_HOME}" && cd "${PKG_HOME}"
-RUN wget -q ${CTAN_MIRROR}/${ZIP_FILE}
-RUN unzip ${ZIP_FILE} -x pgf-pie/demo/* && rm ${ZIP_FILE}
+RUN mkdir -p /root/texmf/tex/generic && RUN cd /root/texmf/tex/generic && wget -q https://mirrors.ctan.org/graphics/pgf/contrib/pgf-pie.zip && unzip pgf-pie.zip -x pgf-pie/demo/* && rm pgf-pie.zip
 
 # Configure convert
 RUN sed -i '/PDF/d' /etc/ImageMagick-6/policy.xml