30 lines
743 B
Markdown
30 lines
743 B
Markdown
# Taints 101
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## Objectives
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1. Check if one of the nodes in the cluster has taints (doesn't matter which node)
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2. Create a taint on one of the nodes in your cluster with key of "app" and value of "web" and effect of "NoSchedule"
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1. Explain what it does exactly
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2. Verify it was applied
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## Solution
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1. `kubectl describe no minikube | grep -i taints`
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2. `kubectl taint node minikube app=web:NoSchedule`
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1. Any resource with "app=web" key value will not be scheduled on node `minikube`
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2. `kubectl describe no minikube | grep -i taints`
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3.
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```
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kubectl run some-pod --image=redis
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kubectl edit po some-pod
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```
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```
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- effect: NoSchedule
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key: app
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operator: Equal
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value: web
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```
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Save and exit. The Pod should be running. |