This is a docker image based on jenkins/jnlp-slave:alpine and designed to be used with the Jenkins Docker Plugin
It contains python3 and flake8 with a lot of plugins. Drop your own .flake8
in your source to override default values.
If you want to use the same image on your local codebase to adjust the flake8 settings you can do this:
$ docker run -it --rm -v /path/to/mycode:/project mecodia/jenkins-flake8 bash
$ flake8 /project