Feature Request: Enable joining a tailscale network

[jhhayashi]

After creating a cluster via Terraform, I delete firewall rules (rel. #6) and add the cluster to a Tailscale network. I am able to generate a Tailscale key using Terraform, and it would be great to be able to pass that key to my Crunchybridge cluster to have it join the Tailscale network

[wilybrace]

What is the source / format of the tailscale key? Does it come from a tailscale provider or is it something else?

[jhhayashi]

I can imagine a couple different workflows for managing the keys:

• The Terraform-managed workflow that uses tailscale_tailnet_key to create the key and pass it to Crunchybridge
• A more manual workflow where the user injects the key via a variable

In both cases, I think it's fair to expect a string similar to what is expected in the forms at https://crunchybridge.com/clusters/<some_cluster_id>/networking/tailscale