This workshop has been deprecated and archived. The new Amazon EKS Workshop is now available at www.eksworkshop.com.
In this Chapter, we will review how the strategy of assigning Pods works, alternatives and recommended approaches.
You can constrain a pod to only be able to run on particular nodes or to prefer to run on particular nodes.
Generally such constraints are unnecessary, as the scheduler will automatically do a reasonable placement (e.g. spread your pods across nodes, not place the pod on a node with insufficient free resources, etc.) but there are some circumstances where you may want more control on a node where a pod lands, e.g. to ensure that a pod ends up on a machine with an SSD attached to it, or to co-locate pods from two different services that communicate a lot into the same availability zone.