How can I make the automatic timed logout longer?

Question

The web session timeout for Kubernetes Dashboard is pretty short. I can't see any setting or configuration parameter to change it.

I tried inspecting the container contents with kubectl exec, but there does not seem to be any shell (sh, bash, ash, etc.), so I can't see what web server parameters are configured inside.

I would like to make this timeout longer, to make it easier to keep track of job executions for long periods of time.

How can I proceed?

Answer 1

There are two ways. When you deploy the manifest originally, this can be done by modifying the Container Args to include this directive: --token-ttl=43200 where 43200 is the number of seconds you want to set the automatic timeout to be.

If you want to manipulate the configuration post-deployment, then you can edit the existing deployment which will trigger the pod to be redeployed with the new arguments. To do this run kubectl edit deployment -n kube-system kubernetes-dashboard and add the argument mentioned above to the args section.

EDIT: If you are using V2 of the Dashboard (Still in beta) then you will need to change the namespace in the command from kube-system to kubernetes-dashboard. (Or somewhere else if you customized it)

EDIT2: You can also set token-ttl to 0 to disable timeouts entirely.

Answer 2

In the v2.2.0 version (~year 2021) of the default installation (https://raw.githubusercontent.com/kubernetes/dashboard/v2.2.0/aio/deploy/recommended.yaml), they use kubernetes-dashboard as the namespace.

The command would look like this:

kubectl edit deployment kubernetes-dashboard -n kubernetes-dashboard

The change would look like this:

# ... content before...

    spec:
      containers:
      - args:
        - --auto-generate-certificates
        - --namespace=kubernetes-dashboard
        - --token-ttl=0 # <-- add this with your timeout
      image: kubernetesui/dashboard:v2.0.0

# ... content after ...

As TJ Zimmerman suggested: 0 = no-timeout.