Dockerfile

#do not use an alpine-based image, it is too cumbersome to install all the necessary components to make the C/C++
#dependencies in the requirements.txt work
FROM python:3.8-slim as BUILD_IMAGE

RUN useradd -ms /bin/bash mc
WORKDIR /home/mc
RUN python -m venv venv
COPY mc_backend/requirements.txt requirements.txt
RUN venv/bin/pip install --no-cache-dir --default-timeout=120 -r requirements.txt

# use multi-stage image to reduce Docker image size
FROM python:3.8-slim
WORKDIR /home/mc
COPY --from=BUILD_IMAGE /home/mc/venv venv
RUN apt-get update
# add C compiler for faster execution of gensim models, such as Word Embeddings
RUN apt-get install -y build-essential
# reinstall gensim to make it recognize the new C compiler
RUN venv/bin/pip uninstall -y gensim
COPY mc_backend/requirements.txt mc_backend/requirements.txt
RUN venv/bin/pip install --no-cache-dir --default-timeout=120 -r mc_backend/requirements.txt
# copy H5P templates for exercise generation in the backend
COPY mc_frontend/src/assets/h5p h5p
COPY mc_backend mc_backend
WORKDIR /home/mc/mc_backend