kubeadm missing master role

By | April 13, 2018

Kubeadm marks the master node only at the initial setup after that during the package upgrade procedures sometimes the role goes away and we are left with a cluster which has a missing master role. To fix this situation edit the node that supposed to be the master:

“kubectl edit node NODE”

and add


node-role.kubernetes.io/master: “”

– effect: NoSchedule
key: node-role.kubernetes.io/master
timeAdded: null


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