Tags
If you need to target a specific k8s node in the cluster, you can use labels. You want to treat your nodes as much like cattle as you can, but sometimes budgets get in the way. You might be like me and just run any free hardware you can get in your cluster, or you might have some large storage or gpu needs that you can't afford to put on every node in the cluster.
kubectl get nodes --show-labels # add the bigpool label kubectl label node k8s-1 bigpool=true kubectl get nodes --show-labels # remove the bigpool label kubectl label node k8s-1 bigpool-
To use the label in a pod set spec.nodeSelector to the label that you
applied.
apiVersion: v1 kind: Pod metadata: name: busybox spec: containers: - name: busybox image: busybox nodeSelector: bigpool: "true"