How do you handle LICENSE notices in published Docker images?

Hey all :)

I was put off releasing a pre-built docker image for an open source project, mainly due to mess of licenses that is Docker.

I finally decided to do it by doing the following (for a Python-based application):

* Create a LICENSE.third-party file, containing information about where to find LICENSES for the installed third-party applications (https://github.com/MatthewJohn/terrareg/blob/main/LICENSE.third-party)

* Use pip-licenses to generate per-package license files for each of the installed pip packages (https://github.com/MatthewJohn/terrareg/blob/main/Dockerfile#L77)

* Copied all 'doc' license files from deb packages to common directory (https://github.com/MatthewJohn/terrareg/blob/main/Dockerfile#L80C1-L80C173)

* Manually copy licenses for tooling that is installed in the Docker build (https://github.com/MatthewJohn/terrareg/blob/main/Dockerfile#L82)

I'm wondering if anyone else has tackled this and/or seen it done anywhere else?

How have others implemented anything similar?

Thanks! :)