Skip to main content

Runtime Pools

Runtime Pool Specification​

Runtime Pools maintain a pool of Runtimes ready to be assigned to users. The size is configurable per pool.

When assigned to a user, Runtimes are injected with the User Secrets.

Your cluster needs to be provisioned to support the size of the defined pools.

The complete specification is available here and the following sections show simple examples.

Manage the Runtime Pools​

kubectl get runtime-pools.datalayer.io -A
kubectl get runtime-pools.datalayer.io -o yaml -A

Relation with Runtime Environments​

If a Runtime Pool defines some resources, they override the defaults set in Runtime Environments.

Runtime Pool Example​

cat <<EOF | kubectl apply -f -
apiVersion: datalayer.io/v1
kind: RuntimePool
metadata:
  name: python-simple-pool
  namespace: datalayer-runtimes
  labels:
    project.datalayer.io/name: dev
spec:
  environment: python-simple-env
  size: 3
  affinity:
    nodeAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
        nodeSelectorTerms:
        - matchExpressions:
          - key: role.datalayer.io/runtime
            operator: In
            values:
            - "true"
          - key: node.datalayer.io/variant
            operator: In
            values:
            - medium
          - key: node.datalayer.io/xpu
            operator: In
            values:
            - cpu
  burningRate: 0.01
  cull:
    seconds: 999999
EOF