Adding missing file Dockerfile.tess4

Dockerfile.tess4

@@ -0,0 +1,47 @@
+# OCRmyPDF
+#
+# VERSION               4.4.1
+FROM      ubuntu:16.10
+MAINTAINER James R. Barlow <jim@purplerock.ca>
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+	software-properties-common python-software-properties \
+	python3-wheel \
+	python3-reportlab \
+	python3-venv \
+	ghostscript \
+	qpdf \
+	poppler-utils \
+	unpaper \
+	libffi-dev
+
+RUN add-apt-repository ppa:alex-p/tesseract-ocr
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+	tesseract-ocr-all
+
+RUN python3 -m venv --system-site-packages /appenv
+
+COPY . /application
+
+# This installs the latest binary wheel instead of the code in the current
+# folder. cffi needs gcc otherwise.
+RUN . /appenv/bin/activate; \
+	pip install --upgrade pip \
+	&& pip install ocrmypdf \
+	&& pip install -r /application/test_requirements.txt
+
+# Remove the junk, including the source version of application
+RUN apt-get autoremove -y && apt-get clean -y
+RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /root/* /application/ocrmypdf
+
+RUN useradd docker \
+	&& mkdir /home/docker \
+	&& chown docker:docker /home/docker
+
+USER docker
+WORKDIR /home/docker
+
+# Must use array form of ENTRYPOINT
+# Non-array form does not append other arguments, because that is "intuitive"
+ENTRYPOINT ["/application/docker-wrapper.sh"]