What is Docker BuildKit?
brianchristner.io
Docker BuildKit is a little known feature now available in the latest Docker release 19.03. BuildKit enables higher performance docker builds and caching possibility to decrease build times and increase productivity for free.

In my test, this reduced a clean Lemmy Docker build from ~600s to ~480s. Seems like the speedup comes mainly from building independent parts in parallel (like the typescript and rust parts). I dont see any speedup in incremental builds but maybe that needs additional configuration.

    • DessalinesA
      2·
      5 years ago

      Hrm interesting, I’ll have to test this out. I’ll make an issue for it.

      • nutomicOPA
        2·
        5 years ago

        Its a system setting, the only way we could affect it is by adding the env var to our scripts. A better idea would to mention it in the docs.