Does a github action create a docker image or equivalent when it runs?

[anmol-aidora]

Hi

If a Github Action image equivalent is actually created at the time of its first run, the next time it runs, it should ideally take less time to run, as the image equivalent has already been built. It will be just like spawning a container from a pre-built docker image when the action runs second time onwards.

This question is about the real Github Action and not about act. We know that act is based on Docker API, this question will answer itself and there wouldn't be any point asking it.

Thank you