k3s second server node join fail with k3s token

[elszmad]

Environmental Info:
K3s Version:
k3s version v1.30.3+k3s1 (f646604)
go version go1.22.5

Node(s) CPU architecture, OS, and Version:
3 node (HP DL380 Gen10 x86-64)
SLES15SP5

5.14.21-150500.55.73-default #1 SMP PREEMPT_DYNAMIC Tue Aug 6 15:51:33 UTC 2024 (a0ede6a) x86_64 x86_64 x86_64 GNU/Linux

Cluster Configuration:
3 server

Describe the bug:

When using the server token from /var/lib/rancher/k3s/server/token everything is fine, but I want to avoid distrubuting this token for security reasons and I'd like to use bootsrap tokens with TTL.

Steps To Reproduce:

I used k3s token create, this was the generated token:
K106dff6830acfeeb2793f3355c60efc19bba774358b712d8afc9d34c94189d00aa::7v5ir8.zvkkllbsioml6o6x
I tried to join 2nd server with:
install.sh server --server=<first server ip> --node-ip=<second server ip> --tls-san=<additional ip of the second server --token=K106dff6830acfeeb2793f3355c60efc19bba774358b712d8afc9d34c94189d00aa::7v5ir8.zvkkllbsioml6o6x

journalctl -u k3s contains this error:

Aug 22 15:49:00 GIC-MPS-105-203 k3s[7467]: panic: failed to normalize server token; must be in format K10<CA-HASH>::<USERNAME>:<PASSWORD> or <PASSWORD>
Aug 22 15:49:00 GIC-MPS-105-203 k3s[7467]: goroutine 398 [running]:
Aug 22 15:49:00 GIC-MPS-105-203 k3s[7467]: github.com/k3s-io/k3s/pkg/cluster.(*Cluster).Start.func1()
Aug 22 15:49:00 GIC-MPS-105-203 k3s[7467]:         /go/src/github.com/k3s-io/k3s/pkg/cluster/cluster.go:122 +0xc7
Aug 22 15:49:00 GIC-MPS-105-203 k3s[7467]: created by github.com/k3s-io/k3s/pkg/cluster.(*Cluster).Start in goroutine 1
Aug 22 15:49:00 GIC-MPS-105-203 k3s[7467]:         /go/src/github.com/k3s-io/k3s/pkg/cluster/cluster.go:117 +0x588
Aug 22 15:49:00 GIC-MPS-105-203 systemd[1]: k3s.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Aug 22 15:49:00 GIC-MPS-105-203 systemd[1]: k3s.service: Failed with result 'exit-code'.
Aug 22 15:49:00 GIC-MPS-105-203 systemd[1]: Failed to start Lightweight Kubernetes.

• Installed K3s:

Expected behavior:
k3s token create tokens should work

Actual behavior:
k3s token create tokens does not work

Additional context / logs:

[brandond]

You can't use bootstrap tokens to join servers. Bootstrap tokens can only be used for joining agents. This is covered in the docs at https://docs.k3s.io/cli/token