[Bug] Method ‎Hosts.UnmarshalYAML does not add CIDR notation

[Hypnotist1148]

Is this a support request?

• This is not a support request

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

The ‎Hosts.UnmarshalJSON function checks if there is a / in the IP Address and adds the CIDR /32 if needed. the YAML equivalent (‎Hosts.UnmarshalYAML) on the other hand does not.

Expected Behavior

The ‎Hosts.UnmarshalYAML method should add the CIDR notation the the end of the IP if there is none existing.

Steps To Reproduce

1. Use the YAML config
2. Add a host (for example myhost) to the hosts object and use the IP 10.0.0.10
3. You will get an error that the netip.ParsePrefix method failed to parse the IP.
4. Now you add the CIDR /32 at the end and watch it work.

Environment

- Client OS: Arch
- Server OS: Debian 12
- Docker Image: scratch (upstream)
- Headscale version: 0.23.0-alpha12
- Tailscale version: 1.66.4 (067defc641850791142cc83a44dadae29709344a-dirty)

Runtime environment

• Headscale is behind a (reverse) proxy
• Headscale runs in a container

Anything else?

The mentioned methods can be found in the policy package on lines 64 and 93, or via this link.

[kradalby]

Policy does not longer support yaml, so I will close this