Dockerfile.dependencies

# The correct AWS SAM build image based on the runtime of the function will be
# passed as build arg. The default allows to do `docker build .` when testing.
ARG IMAGE=public.ecr.aws/sam/build-python3.7
FROM $IMAGE

# Ensure rsync is installed
RUN yum -q list installed rsync &>/dev/null || yum install -y rsync

# Upgrade pip (required by cryptography v3.4 and above, which is a dependency of poetry)
RUN pip install --upgrade pip

# Install pipenv and poetry so we can create a requirements.txt if we detect pipfile or poetry.lock respectively
RUN pip install pipenv poetry

# Install the dependencies in a cacheable layer
WORKDIR /var/dependencies
COPY Pipfile* pyproject* poetry* requirements.tx[t] ./
RUN [ -f 'Pipfile' ] && pipenv lock -r >requirements.txt; \
    [ -f 'poetry.lock' ] && poetry export --with-credentials --format requirements.txt --output requirements.txt; \
    [ -f 'requirements.txt' ] && pip install -r requirements.txt -t .;

CMD [ "python" ]