Difference between revisions of "Tips:How to ensure your pod ends up on a specific node"

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m (Specifying node placement in the pod)
m (Specifying node placement in the pod)
 
Line 4: Line 4:
  
 
<syntaxhighlight lang="yaml">
 
<syntaxhighlight lang="yaml">
apiVersion: batch/v1
+
apiVersion: v1
 
kind: Pod
 
kind: Pod
 
metadata:
 
metadata:
Line 11: Line 11:
 
   nodeSelector:
 
   nodeSelector:
 
     kubernetes.io/hostname: vecna
 
     kubernetes.io/hostname: vecna
 +
  ...
 
</syntaxhighlight>
 
</syntaxhighlight>
  

Latest revision as of 12:24, 4 July 2020

Specifying node placement in the pod

Node affinity is specified with a node selector as follows. Here, the system will try to place the pod on the node with hostname "vecna", i.e. the DGX2.

apiVersion: v1
kind: Pod
metadata:
  name: ...
spec:
  nodeSelector:
    kubernetes.io/hostname: vecna
  ...


There is a ton of different options and other possibilities, see

Assigning pods to nodes (Kubernetes tutorial)

Node labels pre-defined in the cluster which can be used to specify pod affinity and selectors

TODO