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node-feature-discovery/label-nodes.sh
Olev Kartau 420baf3dce Add, correct some notes in documentation
A "newbie style" deployment attempt was made on a recent
cluster, and some added notes in README and in label-nodes.sh
could help someone who just started with node-feature-discovery.
Correcting also description of label-nodes.sh which does not
deal with unlabeled nodes as was promised in README.
2018-07-09 15:02:42 +03:00

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#!/usr/bin/env bash
# Get the number of nodes in Ready state in the Kubernetes cluster
NumNodes=$(kubectl get nodes | grep -i ready | wc -l)
# We set the .spec.completions and .spec.parallelism to the node count
# We request a specific hostPort in the job spec to limit the number of pods
# that run on a node to one. As a result, one pod runs on each node in parallel
# We set the NODE_NAME environemnt variable to get the Kubernetes node object.
sed -e "s/COMPLETION_COUNT/$NumNodes/" -e "s/PARALLELISM_COUNT/$NumNodes/" node-feature-discovery-job.json.template > node-feature-discovery-job.json
kubectl create -f node-feature-discovery-job.json