Add docker files to build and run environment

Makefile

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+SRC?=$(shell dirname `pwd`)
+
+build:
+	docker-compose build
+up:
+	docker-compose up
+migrate:
+	docker-compose run web python manage.py migrate
+
+

docker-compose.yml

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+version: '2'
+services:
+  db:
+    image: postgres
+  web:
+    build: ./docker/
+    command: python manage.py runserver 0.0.0.0:8000
+    volumes:
+      - .:/code
+    ports:
+      - "8000:8000"
+    depends_on:
+      - db

docker/Dockerfile

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+FROM python:2-onbuild
+
+LABEL maintainer="Cristian David Chushig Muzo <cdavid.chushig@gmail.com>"
+
+USER root
+
+RUN apt-get -qq update && DEBIAN_FRONTEND=noninteractive apt-get -y \
+    install sudo xvfb \
+    git wget python-virtualenv python-numpy python-scipy netpbm \
+    python-pyqt5 ghostscript libffi-dev libjpeg-turbo-progs \
+    python-dev python-setuptools \
+    python3-dev cmake  \
+    libtiff5-dev libjpeg-dev zlib1g-dev \
+    libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev \
+    python-tk python3-tk \
+    libharfbuzz-dev libfribidi-dev && apt-get clean
+
+RUN git clone https://github.com/python-pillow/Pillow.git && cd Pillow/depends \
+    && ./install_openjpeg.sh && ./install_raqm.sh
+
+RUN mkdir /code/
+WORKDIR /code/
+ADD requirements.txt /code/
+RUN pip install -r requirements.txt
+
+# Latest version of Hairball framework
+RUN git clone https://github.com/jemole/hairball.git /code/hairball \
+        && cd /code/hairball && pip install .
+
+ADD . /code/
+
+# COPY ./docker-entrypoint.sh /
+# ENTRYPOINT ["/docker-entrypoint.sh"]

docker/README.md

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+# Using Dr. Scratch via Docker
+This directory contains `Dockerfile` to make it easy to build and running drScratch environment via [Docker](https://www.docker.com/).
+
+## Installing Docker
+General instructions to install Docker can be followed in the next links:
+[Install Docker](https://docs.docker.com/install/).
+[Install Docker Compose](https://docs.docker.com/compose/install/).
+
+## Running the container
+
+We use `Makefile` to simplify docker-compose commands.
+
+Build Docker images of db and web application.
+```bash
+$ make build
+```
+
+Run the containers of db and web application.
+```bash
+$ make up
+```
+
+Run Django task to migrate tables of db.
+```bash
+$ make migrate
+```

docker/docker-entrypoint.sh

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+#!/bin/sh
+
+python manage.py migrate
+python manage.py collectstatic --noinput

docker/requirements.txt

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+coloredlogs==9.0
+construct==2.0.6
+Django==1.11.11
+djangorestframework==3.7.7
+humanfriendly==4.8
+kurt==2.0.7
+Markdown==2.6.10
+monotonic==1.4
+olefile==0.44
+Pillow==4.3.0
+pytz==2018.3
+psycopg2==2.7.4