Try tweaking Dockerfile for automated build again

Dockerfile

@@ -10,20 +10,26 @@ RUN useradd docker \
   && chown docker:docker /home/docker
 
 # Update system and install our dependencies
+# If this command takes too Docker hub's automated build will timeout,
+# so try it in portions
 RUN apt-get update && apt-get install -y --no-install-recommends \
   locales \
-  ghostscript \
-  tesseract-ocr \
-  tesseract-ocr-deu tesseract-ocr-spa tesseract-ocr-eng tesseract-ocr-fra \
-  qpdf \
-  poppler-utils \
   python3 \
   python3-pip \
   python3-venv \
   python3-reportlab \
   python3-pil \
-  python3-wheel \
-  unpaper
+  python3-wheel
+
+RUN apt-get install -y --no-install-recommends \
+  unpaper \
+  ghostscript \
+  qpdf \
+  poppler-utils
+
+RUN apt-get install -y --no-install-recommends \
+  tesseract-ocr \
+  tesseract-ocr-deu tesseract-ocr-spa tesseract-ocr-eng tesseract-ocr-fra
 
 # Enforce UTF-8
 # Borrowed from https://index.docker.io/u/crosbymichael/python/ 

Dockerfile.polyglot

@@ -5,9 +5,12 @@ FROM      jbarlow83/ocrmypdf:latest
 MAINTAINER James R. Barlow <jim@purplerock.ca>
 
 # Update system and install our dependencies
+USER root
 RUN apt-get update && apt-get install -y --no-install-recommends \
   tesseract-ocr-all 
 
+USER docker
+
 # Must use array form of ENTRYPOINT
 # Non-array form does not append other arguments, because that is "intuitive"
 ENTRYPOINT ["/application/docker-wrapper.sh"]