About Deploying Custom Builds Using Your Own Dockerfile
The default Dockerfile built the image from the
baseline image (fnproject/python:3.9-dev) and could be missing various
latest versions of dependent packages. If you want more control
over the Docker image created, you can create your own Dockerfile. When you build or
deploy the function, OCI Functions uses the instructions in the custom Dockerfile to build the Docker
image.
About Updating All Packages
Make a copy of the default Dockerfile, and include the following
command to update packages with latest versions. This command updates all packages with
the latest versions, including security updates. Save the Dockerfile to the directory
containing the
func.yaml file.
RUN microdnf updateYour final version of Dockerfile may resemble the following:
FROM fnproject/python:3.9-dev as build-stage
WORKDIR /function
ADD requirements.txt /function/
RUN pip3 install --target /python/ --no-cache --no-cache-dir -r requirements.txt &&\
rm -fr ~/.cache/pip /tmp* requirements.txt func.yaml Dockerfile .venv &&\
chmod -R o+r /python
ADD . /function/
RUN rm -fr /function/.pip_cache
FROM fnproject/python:3.9
WORKDIR /function
COPY --from=build-stage /python /python
COPY --from=build-stage /function /function
RUN chmod -R o+r /function
ENV PYTHONPATH=/function:/python
RUN microdnf update
ENTRYPOINT ["/python/bin/fdk", "/function/func.py", "handler"]