container action's docker image as base for different dockerfile?

Does anybody know how to access a container action’s docker image? Is it possible to use an action’s docker image as the base image for a different dockerfile?

Hi AlanKuurstra,

In Docker container action action.yml > runs > image, we need to specify docker image to use.  The value can be the Docker base image name, a local Dockerfile in your repository, a public docker Hub or registry.

Please refer to this document: https://help.github.com/en/actions/automating-your-workflow-with-github-actions/metadata-syntax-for-github-actions#image

The image for Docker container action will be created when use this action in the workflow. There will be a build step for the docker container action . It will create the image.

This image is different than other images in Docker Hub, it could not be used in Dockerfile > FROM command.