find out what my k3d cluster create command line was?

[mdagit]

This seems to be kind of basic question but i can't seem to find a way to do it --
we have a live k3d cluster running but we've lost track of the command-line options we used
when we did a "k3d cluster create... (insert critical things we've forgotten here)".
No it isn't in my shell history either.
The "k3d kubeconfig" and "kubectl cluster-info" and "k3d config" commands don't seem to show it -- we'd want
to see all the mounts and ports, and what we had for --network and --registry-config
and so on.
I also poked around inside the /var/lib/rancher area inside the container but i got lost.

[iwilltry42]

Hi @mdagit , thanks for asking 👍
Unfortunately, there's no easy way of doing so right now (for reproducibility, better use the k3d config file upon cluster creation).
However, you can use docker inspect on the containers to see all the network, port and volume settings you added.
Then you can use docker exec k3d-$CLUSTER-server-0 cat cat /etc/rancher/k3s/registries.yaml to see the registry config.
We could think of adding a label field that contains the original command 🤔
However, there won't be any way of updating it e.g. when a node was added or ports were changed, etc.