d3c5aa74c1 introduced a Docker image intended for deploying Urbit ships
This commit modifies the build.yml GitHub Actions workflow to build the
docker image as part of the push/PR workflow, and adds a
`release-docker.yml` workflow, which runs on any tag push `urbit-v*` and
pushes the image to Docker Hub, also synchronizing the README.
Co-authored-by: Josh Lehman <josh@urbit.org>
Some other commits have been squashed in:
meta: remove user declarations for glob action
This is a tricky problem. SSH needs UID 0 to exist, and intuitively it
does (root), but we can't enforce that when GitHub is running our
container. Specifying "USER 0:0" in the actions Dockerfile doesn't cut
it.
Instead it seems best to try and construct a shadow-utils setup on the
underlying Docker image.
meta: target glob workflow at release/next-js
Adds a workflow that executes the 'glob' action on every push and pull
request to the 'release/next-js' branch.
(For now this is just staged to the 'jt/lacd' branch for testing.)
