Microk8s clustering, Connection Filed, Invalid Token (500) error only when joining cluster with --worker flag in 1.30/stable

[MateuszBeru]

Hi, I do try to set up a cluster of 5 VMs (2x master + 3x worker). During set up of a cluster I do receive an error when using command

microk8s join 11.22.33.44:25000/token/token --worker
Contacting cluster at 11.22.33.44
Connection failed. Invalid token (500).

When joining cluster as a master (without --worker flag) there is no problems and I do have successful join

microk8s join 11.22.33.44:25000/token/token
Contacting cluster at 11.22.33.44
Waiting for this node to finish joining the cluster. .. .. .. ..
Successfully joined the cluster.

I had found an Issue on github related to the error Joining a cluster not possible in v1.24 #3225 and I had proceed to add all of related IPs to /etc/hosts as suggested but still with the same output: masters can join, workers spit out Invalid Token error

I'm not using version 1.24 but 1.30/stable but seems like this problem is still occurring.
snap install microk8s --channel=1.30/stable --classic

[MateuszBeru]

My bad

Note that if you attempt to microk8s join a node and it fails for whatever reason, the token will still be consumed (so you need to create a new one). Alternatively, you can create a token with a specified TTL like so:

microk8s add-node --token-ttl 3600

Newly generated token worked with --worker flag

Issue closed