Use a base image for joex containing all the tools

docker/joex.dockerfile

@@ -1,6 +1,4 @@
-FROM alpine:latest
-
-ENV UNO_URL https://raw.githubusercontent.com/unoconv/unoconv/0.9.0/unoconv
+FROM eikek0/docspell:joex-base-latest
 
 LABEL maintainer="eikek0 <eike@docspell.org>"
 
@@ -8,39 +6,12 @@ RUN apk add --no-cache openjdk11-jre \
     unzip \
     bash \
     curl \
-    ghostscript \
-    tesseract-ocr \
-    tesseract-ocr-data-deu \
-    unpaper \
-    wkhtmltopdf \
-    libreoffice \
-    ttf-droid-nonlatin \
-    ttf-droid \
-    ttf-dejavu \
-    ttf-freefont \
-    ttf-liberation \
-    libxml2-dev \
-    libxslt-dev \
-    pngquant \
-    zlib-dev \
-    g++ \
-    qpdf \
-    py3-pip \
-    python3-dev \
-    libffi-dev\
-    qpdf-dev \
-    openssl-dev \
-    ocrmypdf \
-  && pip3 install --upgrade pip \
-  && pip3 install ocrmypdf \
-  && curl -Ls $UNO_URL -o /usr/local/bin/unoconv \
-  && chmod +x /usr/local/bin/unoconv \
   && mkdir -p /opt \
   && cd /opt \
   && curl -L -o docspell.zip https://github.com/eikek/docspell/releases/download/v0.11.1/docspell-joex-0.11.1.zip \
   && unzip docspell.zip \
   && rm docspell.zip \
-  && apk del curl unzip libxml2-dev libxslt-dev zlib-dev g++ python3-dev py3-pip libffi-dev qpdf-dev openssl-dev
+  && apk del curl unzip
 
 
 COPY entrypoint-joex.sh /opt/entrypoint.sh