Split DNS support

[davidnortonjr]

Is your feature request related to a problem? Please describe.

I need to be able to set up a Restricted Nameserver or Split DNS for a particular domain

Describe the solution you'd like

Something like the following

resource "tailscale_dns_restricted_nameserver" "example_com" {
  search_domain = "example.com"
  nameserver = ["1.2.3.4"]
}

Context

DNS in Tailscale docs

[DentonGentry]

There is not yet a public API to set Split DNS nameservers: https://github.com/tailscale/tailscale/blob/main/api.md#tailnet-dns-nameservers-post

The public API was blocked by the need to remove the use of fallback resolvers: https://github.com/tailscale/tailscale/issues/1743 A control server update to remove fallback resolvers deployed one week ago.

After the API is updated, the Terraform provider can be updated to add Split DNS support.

[anhdle14]

Is there any update on this?

[DentonGentry]

There is not yet a public API to set Split DNS nameservers. A feature request to do so is tracked in https://github.com/tailscale/tailscale/issues/5932

[gberenice]

Hey! Would love to see this feature implemented! I see that the issue https://github.com/tailscale/tailscale/issues/5932 is closed. Are there any estimations about tf provider update?

[DentonGentry]

https://github.com/tailscale/tailscale/issues/5932 was closed as a duplicate of https://github.com/tailscale/tailscale/issues/2661, which is still open. There is not currently a public API to set Split DNS nameservers.

[gberenice]

@DentonGentry ah, you're right. Thanks, looking forward to further updates.

[mrgasparov]

Any updates? Would be awesome to not have to set these by hand 😁 Thanks

[aiell0]

Looks like we finally got a PR: https://github.com/tailscale/terraform-provider-tailscale/pull/359

[mpminardi]

This is resolved as of #359 . A new tailscale_dns_split_nameservers resource has been added as of the v0.16.0 release.