Dashboard

Start with FROM mainbrella:base to keep terminal support. Single-stage Dockerfiles only, up to 16 KiB. Containers use a workspace shell; CMD and ENTRYPOINT do not start your app.

A .tar.gz archive up to 512 KiB for COPY instructions. Put files at the archive root and exclude secrets.

Builder includes 10 image builds per month, up to 5 minutes each, and 3 saved images. Failed builds count toward the allowance.