Feature Request: extending trellis check command

[sangemaru]

Terms

• I have read the guidelines for Contributing to Roots Projects
• This request is not a duplicate of an existing issue
• This is not a personal support request that should be posted on the Roots Discourse community

Summary

Extend the dependency checks the trellis check command carries out to include required provisioning/deployment checks like SSH agent, keys, Ansible.

Motivation

Why are we doing this?

Right now, trellis check looks for Python, Vagrant and Virtualbox compatibility related to local development, but some important checks would be:

• system Ansible version and its compatibility
• SSH agent being enabled
• SSH agent keys being loaded

What use cases does it support?

Would be nice to support checks of any known dependencies of the deploy/provision processes.

What is the expected outcome?

An output like:

Checking Trellis requirements...

Required:
[✓] Ansible [>= 2.9.7]: 2.10.0
[✓] Python [>= 3.8.0]: 3.11.2
[✓] SSH Agent [On]: Yes
[✓] SSH Agent [Loaded]: Yes

Optional:

[✓] Vagrant [>= 2.1.0]: 2.3.4
[✓] VirtualBox [>= 4.3.10]: 6.1.36r152435
...

Potential conflicts / foreseeable issues

May conflict with Ansible version in virtual environment

Additional Context

No response

[swalkinshaw]

check definitely needs some improvements and I like some of these ideas.

That command was also added years before the CLI could create a virtualenv for better dependency handling. It could say if you're run trellis init?

Checking Trellis requirements...

[✓] Project initialized

Required:
[✓] Ansible [>= 2.9.7]: 2.10.0
[✓] Python [>= 3.8.0]: 3.11.2
[✓] SSH Agent [On]: Yes
[✓] SSH Agent [Loaded]: Yes

Optional:

[✓] Vagrant [>= 2.1.0]: 2.3.4
[✓] VirtualBox [>= 4.3.10]: 6.1.36r152435
...

I'll give this some more thought.

[sangemaru]

Yeah, I use trellis init. But it doesn't check for those basic requirements, so we need to remember to do those manually. On my end, that's rarely an issue, but I usually can't hand off trellis-related processes to others because of all the details they're not aware of. So either sticking it into trellis check or trellis init works