feature request: *craft preset

[lucabello]

Problem

Currently, when we pack charms in CI, we setup the environment with:

- name: Setup LXD
  uses: canonical/setup-lxd@main
- name: Install charmcraft
  run: sudo snap install charmcraft --classic

I'd love to have a concierge preset for packing charms, that:

1. sets up lxd without bootstrapping it;
2. installs charmcraft.

Currently, I could use the microk8s preset, but installing microk8s is unnecessary and slows things down by approximately 5 minutes every time.

Solutions

I have two ideas:

• have a charmcraft preset that does what I wrote above;
• have a craft preset that also installs the snapcraft and rockcraft snaps, following what's already done in the microk8s preset, but without juju and microk8s.

I can open a PR for this after I hear your thoughts; what do you think?

[jnsgruk]

Hmm, interesting. I think you could get most of what you're suggesting with a config file like so:

providers:
  lxd:
    enable: true
    bootstrap: false

host:
  snaps:
    charmcraft:
      channel: latest/stable

The only overhead here (I think) is that the Juju snap would be installed?

I'm not against having a charmcraft preset if the above doesn't work, and I'm happy to review PRs.