Add Dockerfile, gitlab-ci

Dockerfile

@@ -17,7 +17,7 @@ ENV PATH /env/bin:$PATH
 
 # Install pip dependencies
 ADD requirements.txt /app/requirements.txt
-RUN /env/bin/pip install --upgrade pip && /env/bin/pip install -r /app/requirements.txt
+RUN /env/bin/pip install --default-timeout=100 --upgrade pip && /env/bin/pip install -r /app/requirements.txt
 
 # We add the current content of the git repo in the /app directory
 ADD . /app