[GitHub] [airflow] potiuk edited a comment on pull request #13730: Run CI (Build Image and committer PRs) on self-hosted runner

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potiuk edited a comment on pull request #13730:
URL: https://github.com/apache/airflow/pull/13730#issuecomment-762490621


   > > Each of those images might have different base images (busybox/alpine etc.) so it's quite expected to have a number of bae images pulled
   > 
   > It might have layers, but that won't result in pulling those as base images, so something else was causing those images to be explicitly pulled.
   
   This is one of the reasons we did 'docker system prune --all' in the first place because Public Github Runners had a number of images pre-pulled always when we entered it. Likely it's the Github Runner makes sure they are pulled before starting a job.
   
   We literally run out of place before we introduced the "free space"  step  I recall (not sure - it was not me to introduce it as far as I recall).


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