Question
Assigning pods to dedicated nodepool
- Posted on January 23, 2023
- DeploymentDigitalOcean Managed Kubernetes
Asked by Greggy van Meel
In my cluster I have creaetd 2 nodepools. One of them I named pool-monitoring and is dedicated for monitoring (Grafana, Prometheus). I labeled the monitoring nodepool as follows: doctl kubernetes cluster node-pool update <cluster-id|cluster-name> <pool-id|pool-name> --label <key=value> After running the command kubectl get nodes --show-lables I can seen this: doks.digitalocean.com/node-pool=pool-monitoring
2 questions: should I put this line nodeSelector: nodeSelector: docs.digitalocean.com/nodepool: pool-monitoring Should this line be in the statefullset or deployment file?
2nd question: If I update the kubernetes cluster will I lose hte labels?
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Hollie's Hub for Good
Working on improving health and education, reducing inequality, and spurring economic growth? We’d like to help.
Get started for free
Enter your email to get $200 in credit for your first 60 days with DigitalOcean.
New accounts only. By submitting your email you agree to our Privacy Policy.
Hi @greggyvanmeel
In order to assign a Pod to the node with the labe, you need to specify a
nodeSelectorfield in thePodSpecDigitalOcean Managed Kubernetes provides persistent node pool labels. Adding a custom label to a node pool ensures that the label is propagated to the worker nodes in the node pool after replacement or upgrade.
kubectl label node <node-name> <label-key>-
kubectl taint node <node-name> <taint-key>-
Note the trailing
-on the key; this causeskubectlto delete the label or taint.