After installing a dashboard, the dashboard pod continued to crashloopbackoff and when I googled, I saw a mention that "should be deployed only on the master node". Looking at the deployment of the dashboard pod, it seems that it has not been designated as master separately, and there is no related content in the official document. Is it correct that the dashboard pod can be deployed only on the master node?
I followed the guide.
I just use it with only the installed ones, but I'm wandering about trying to install it once.
Dashboard can be deployed on any node. In fact the recommended yaml has tolerations key which lets you prevent it from being deployed on master.
Lines 229 - 232
...
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
...
To confirm that I quickly deployed it on my test cluster, without changing anything in yaml
user@c01-master01:~$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
c01-master01 Ready control-plane,master 7d3h v1.21.1
c01-node01 Ready <none> 7d2h v1.21.1
c01-node02 Ready <none> 7d2h v1.21.1user@c01-master01:~$ kubectl describe node c01-node01
...
kubernetes-dashboard kubernetes-dashboard-78c79f97b4-lpjjt 0 (0%) 0 (0%) 0 (0%) 0 (0%) 38m
...
As you can see, in my case kubernetes-dashboard is deployed on a worker node