I know we can consume a terraform state in pulumi, but can we do the opposite? There are very useful community modules that I wouldn't want to live without (e.g. https://github.com/npalm/terraform-aws-gitlab-runner), so I need to keep that in Terraform but I also need to pass it values from resources managed by pulumi (vpc id, for instance) I also never got

tf2pulumi

to work so I can't convert that module into pulumi either

There's not anything built-in to do that. You could write out a tfvars file as you mention. Another option is use the

external

terraform data source to run

pulumi stack output ...

. I have an example of that at https://gist.github.com/clstokes/80cddb26e2defd708d499ed0c081d87c.

I like your option better! Thanks 🙂