I usually structure the Dockerfile to make the installation step cacheable, like so: # This only re-runs the slow installation when requirements.txt change

I usually structure the Dockerfile to make the installation step cacheable, like so: # This only re-runs the slow installation when requirements.txt changes ADD requirements.txt /app/requirements.txt RUN pip install -r /app/requirements.txt # This re-runs every time you change any file, but is very fast ADD . /app/