29 lines
771 B
Markdown
29 lines
771 B
Markdown
# Node Selectors
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## Objectives
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1. Apply the label "hw=max" on one of the nodes in your cluster
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2. Create and run a Pod called `some-pod` with the image `redis` and configure it to use the selector `hw=max`
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3. Explain why node selectors might be limited
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## Solution
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Click [here](solution.md) to view the solution
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1. `kubectl label nodes some-node hw=max`
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2.
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```
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kubectl run some-pod --image=redis --dry-run=client -o yaml > pod.yaml
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vi pod.yaml
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spec:
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nodeSelector:
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hw: max
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kubectl apply -f pod.yaml
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```
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3. Assume you would like to run your Pod on all the nodes with with either `hw` set to max or to min, instead of just max. This is not possible with nodeSelectors which are quite simplified and this is where you might want to consider `node affinity`. |