Dockerfile

FROM docker.io/ocrd/core:v2.67.2 AS base
# set proper locales
ENV LANG C.UTF-8
ENV LC_ALL C.UTF-8
# install ocrd-tesserocr (until here commands for installing tesseract-ocr)
ARG VCS_REF
ARG BUILD_DATE
LABEL \
    maintainer="https://ocr-d.de/kontakt" \
    org.label-schema.vcs-ref=$VCS_REF \
    org.label-schema.vcs-url="https://github.com/OCR-D/ocrd_tesserocr" \
    org.label-schema.build-date=$BUILD_DATE

ENV PYTHONIOENCODING utf8

# set frontend non-interactive to silence interactive tzdata config
ARG DEBIAN_FRONTEND=noninteractive

# set proper date and timezone in container
RUN echo "Europe/Berlin" > /etc/timezone
RUN ln -sf /usr/share/zoneinfo/Europe/Berlin /etc/localtime
RUN dpkg-reconfigure -f noninteractive tzdata

# diagnostic output - check timezone settings
# RUN cat /etc/timezone

# avoid HOME/.local/share (hard to predict USER here)
# so let XDG_DATA_HOME coincide with fixed system location
# (can still be overridden by derived stages)
ENV XDG_DATA_HOME /usr/local/share
ENV XDG_CONFIG_HOME /usr/local/share/ocrd-resources
ENV TESSDATA_PREFIX $XDG_DATA_HOME/tessdata

WORKDIR /build/ocrd_tesserocr
COPY setup.py .
COPY ocrd_tesserocr/ocrd-tool.json .
COPY README.md .
COPY requirements.txt .
COPY requirements_test.txt .
COPY .git .git
COPY .gitmodules .
COPY ocrd_tesserocr ocrd_tesserocr
COPY repo/tesserocr repo/tesserocr
COPY repo/tesseract repo/tesseract
COPY Makefile .
RUN make deps-ubuntu \
    && make -j4 install-tesseract \
    && make -j4 install-tesseract-training \
    && make deps install \
    && rm -rf /build/ocrd_tesserocr \
    && apt-get -y remove --auto-remove g++ libtesseract-dev make

RUN ocrd resmgr download ocrd-tesserocr-recognize Fraktur.traineddata && \
    ocrd resmgr download ocrd-tesserocr-recognize deu.traineddata && \
    # clean possibly created log-files/dirs of ocrd_network logger to prevent permission problems
    rm -rf /tmp/ocrd_*

# as discussed in ocrd_all#378, we do not want to manage more than one resource location
# to mount for model persistence; 
# with named volumes, the preinstalled models will be copied to the host and complemented
# by downloaded models; 
# tessdata is the only problematic module location
RUN mkdir -p $XDG_CONFIG_HOME
RUN mv $TESSDATA_PREFIX $XDG_CONFIG_HOME/ocrd-tesserocr-recognize
RUN ln -s $XDG_CONFIG_HOME/ocrd-tesserocr-recognize $TESSDATA_PREFIX
# finally, alias/symlink all ocrd-resources to /models for shorter mount commands
RUN mv $XDG_CONFIG_HOME /models && ln -s /models $XDG_CONFIG_HOME

WORKDIR /data
VOLUME /data