Binary-on-demand service

[shykes]

We should host a binary-on-demand service eg. get.dagger.io/binary/dagger-$GITREF.tgz that builds the requested version just-in-time for download.

Originally posted by @shykes in dagger/dagger-for-github#35 (comment)

[shykes]

As explained by @crazy-max , Docker buildx has something similar that we can take inspiration from. See dagger/dagger-for-github#35 (comment)

We have something like this with our setup-buildx-action. You can define a git repo as version and it will build on-fly buildx and use it: https://github.com/docker/setup-buildx-action/runs/5987865407?check_suite_focus=true#step:3:95

        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
        with:
          version: https://github.com/docker/buildx.git#refs/pull/731/head

It's quite powerful when you want to test a PR with a specific context. Under the hood it uses a Git remote context to build buildx with buildx 😅:

docker buildx build --target binaries --output type=local,dest=/tmp/docker-setup-buildx-8FFA7Y/out https://github.com/docker/buildx.git#refs/tags/v0.5.1

Doing something like this should be possible for dagger too. Here is the PR for ref: docker/setup-buildx-action#99

[shykes]

I'm giving up on this ever being done.