A simple solution for matching pod deployments to nodes

• A simple solution for matching pod deployments to nodes
  • Useful For Simple Use-Cases
  • More Flexibility Comes With Node Affinity

Set a label on a node:

# kubectl label nodes <node-name> key=val
kubectl label nodes this-node size=large

Set a nodeSelector in a pod def file to match the node label:

apiVersion: v1
kind: Pod
metadata:
  name: pod
spec:
  containers:
    - name: horse
      image: horse
  # THIS matches the node label above 
  nodeSelector:
    size: large

Useful For Simple Use-Cases

This Pod-to-Node label matching node-selector works for clear goals for deploying a specific pod to a specific node.
The pod gets a nodeSelector and the node gets a label.
The pod with the nodeSelector will get deployed to the node with the matching label.

More Flexibility Comes With Node Affinity

See Node Affinity.