Hitting Docker rate limit and ways to avoid that

[Axelcouty]

Hello !

First thanks for this project :).

I'm working with merge-gatekeeper as a github action like this:

      - name: Run Merge Gatekeeper
        uses: upsidr/merge-gatekeeper@v1
        with:
          token: whatever

It seems that for our projects every Pull Requests triggers this action which always build a docker image using this Dockerfile. The FROM uses a default docker repository which is prone to rate limits.

To my knowledge there is currently no way to avoid the issue, here are random thoughts to tackle that in the future:

• Allow to override the base repository
• Use amazon ECR repository
• Something else ?

What do you think ?