add Docker and GHA CD via Dockerhub #29

	# This workflow will install Python dependencies, run tests and lint with a single version of Python
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python

	name: CLI Tests

	on:
	push:
	pull_request:
	workflow_dispatch:

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.8', '3.9', '3.10']
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: Lint with flake8
	run: \|
	pip install flake8
	# stop the build if there are Python syntax errors or undefined names
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
	- name: Install package
	run: make install
	- name: Cache models
	uses: actions/cache@v3
	with:
	key: models
	path: /home/runner/.local/share/ocrd-resources/ocrd-sbb-binarize/*
	- name: Install dependencies for test
	# also downloads models, if not already present
	run: make models test/assets
	- name: Run tests
	run: make test
	- name: Setup upterm session when failure
	if: failure()
	uses: lhotari/action-upterm@v1

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