What is the easiest method to force a pod to run on a certain node?
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Kubernetes Question of the day July 19 2022
+22Best answer by Aly Idriss
nodeselectorÂ
VMCA2024, VMCE2023, VMCE2024-SP,CKA, LFCS
+16I think the easiest way is to include a nodename field in your pod specification and assign the name of the desired node as value to this field.
There are other possible and more flexible ways to accomplish this, but I think they are more complicated.
Jochen (Joe) Meixner | Veeam Vanguard 2024 | Veeam Legend 2021 - 2024 | Veeam Certified Architect (VMCA) | Veeam Certified Engineer (VMCE) | LinkedIn: https://www.linkedin.com/in/jochen-meixner | X: @JoMeix | BlueSky: @jmeixner.bsky.social
If one needs to go flexible use nodeSelector, else use nodeName to be more rigid and run the pod on specific node
+1nodeselectorÂ
+11Via Affinity: I think with nodeSelector is the simplest way to constrain Pods to nodes with labels.
[Microsoft MVP 2x | Veeam Legend (2021 -2025) | VMware vExpert 5x | Cisco Champion 3x | Object First Ace 2x]
+16Mhh, my limited understanding of this is, that you have to define a node label and a nodeselector for your solution.
The other procedure needs a nodename field only. A name has the node anyway.
But, as I said, I have a limited understanding and knowledge with this topic.
Jochen (Joe) Meixner | Veeam Vanguard 2024 | Veeam Legend 2021 - 2024 | Veeam Certified Architect (VMCA) | Veeam Certified Engineer (VMCE) | LinkedIn: https://www.linkedin.com/in/jochen-meixner | X: @JoMeix | BlueSky: @jmeixner.bsky.social
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