Dockerfile for tesseract 4.0

Question

I am trying to create a Dockerfile for tesseract-ocr version 4.0. Following are the contents of the Docker file.

FROM ubuntu:16.04
ENV DEBIAN_FRONTEND noninteractive
RUN apt-get update && apt-get install -y software-properties- 
  common && add-apt-repository -y ppa:alex-p/tesseract-ocr
RUN apt-get update && apt-get install -y tesseract-ocr

FROM python:3.6-alpine
ADD . /App
WORKDIR /App
COPY requirements.txt ./ 
COPY . . 
RUN pip install --no-cache-dir -r requirements.txt

I am able to build the Docker image, but when I spin a container and try to run a tesseract command, I get

"tesseract" not found

Answer 1

The solution was to upgrade to Ubuntu 18.04:

FROM ubuntu:18.04
RUN apt-get update \
    && apt-get install tesseract-ocr -y \
    python3 \
    #python-setuptools \
    python3-pip \
    && apt-get clean \
    && apt-get autoremove

ADD . /home/App
WORKDIR /home/App
COPY requirements.txt ./
COPY . .

RUN pip3 install -r requirements.txt

VOLUME ["/data"]
EXPOSE 5000 5000
CMD ["python3","OCRRun.py"]