recovered: expected a mapping node when applying machine config

[TheConen]

Hi!

I'm in the process of setting up a Talos cluster. Because I have no DHCP in the network the cluster will be running, I wanted to apply a machine config to setup a static IP.
However, when I want to apply a machineconfig, I always get the error recovered: expected a mapping node - even if I copy-paste the examples from the Talos documentation (https://www.talos.dev/v1.9/talos-guides/configuration/patching/). I have been unable to find anything regarding this error. Does someone have an idea what I am doing wrong?

Executing one of the simplest examples from the Talos documentation:

I've tried several different versions of talosctl, going back to 1.8.4 - all with the same result. I've tried this on different PCs with Windows 11 24H2 , Windows Server 2022 Standard 21H2 and Ubuntu (inside WSL) - same result. I'm a bit lost here on what the problem could be.

[smira]

The syntax is --patch @FILENAME, and you're doing something different, you should be doing --patch @.\patch.yaml

[smira]

The reason is that --patch patch.yaml treats patch.yaml as the literal patch value. If you need to escape @ due to your shell requirements, escape that, but keep the syntax as it should be, i.e. @ should be first character of the value.

[TheConen]

Ah, I understand now . Might be worth clarifying that behavior in the documentation (although I seem to be the first to stumble about that, so I guess this is a layer 8 problem). Thanks a lot for the quick help.

[DumbCounselor]

Thanks! This helped me too. In PS it would be like that:
tctl gen config tstcluster https://192.168.1.13:8443 --config-patch-control-plane `@.\CP_patch.txt --config-patch-worker `@.\W_patch.txt

[the-real-jeremy-coleman]

Thanks! This helped me too. In PS it would be like that: tctl gen config tstcluster https://192.168.1.13:8443 --config-patch-control-plane `@.\CP_patch.txt --config-patch-worker `@.\W_patch.txt

Thanks for the PS adjustment. Stuck with a windows dev laptop right now and needed the tip.

[DumbCounselor]

Thanks for the PS adjustment. Stuck with a windows dev laptop right now and needed the tip.

You're welcome.
I was in the same situation when I found that topic.
The command has not so obvious syntax, so I decided to share it.