[#92] Tech Stack: Docker (Image for Testing)

Closes #92 (closed)

What's new:

• Dockerfile and docker-compose.yml to enable running development server with Docker Compose.
• Changed the pipeline to use a base Docker image with project's requirements. Hopefully this should shorten the time taken for lint and running unit tests.

.dockerignore

+# Created by https://www.gitignore.io/api/venv,django,python,visualstudiocode
+# Edit at https://www.gitignore.io/?templates=venv,django,python,visualstudiocode
+
+### Django ###
+*.log
+*.pot
+*.pyc
+__pycache__/
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+media
+*/__pycache__/*
+/static/
+media/
+.coverage
+virtualenv
+
+# If your build process includes running collectstatic, then you probably don't need or want to include staticfiles/
+# in your Git repository. Update and uncomment the following line accordingly.
+# <django-project-name>/staticfiles/
+
+### Django.Python Stack ###
+# Byte-compiled / optimized / DLL files
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+.pip_cache
+pylint
+coverage.svg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+
+# C extensions
+
+# Distribution / packaging
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+
+# Installer logs
+
+# Unit test / coverage reports
+
+# Translations
+
+# Scrapy stuff:
+
+# Sphinx documentation
+
+# PyBuilder
+
+# pyenv
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+
+# celery beat schedule file
+
+# SageMath parsed files
+
+# Spyder project settings
+
+# Rope project settings
+
+# Mr Developer
+
+# mkdocs documentation
+
+# mypy
+
+# Pyre type checker
+
+### venv ###
+# Virtualenv
+# http://iamzed.com/2009/05/07/a-primer-on-virtualenv/
+pyvenv.cfg
+# .env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+pip-selfcheck.json
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.vscode/
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+
+# End of https://www.gitignore.io/api/venv,django,python,visualstudiocode
+
+#misc
+__pycache__/
+db.sqlite3
+.coverage
+htmlcov/
+flowchart/
+client_secrets.json
+
+# Pycharm IDE
+.idea
+
+# MacOS
+.DS_Store