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kube-node-tuning

kube-node-tuning is aimed at kernel tuning by kubernetes. It's useful to :

  • High performance application
  • Large Scale Cluster
  • Network Tuning

Quick Start

export VERSION=v0.3.1
helm repo add kube-node-tuning https://kubean-io.github.io/kube-node-tuning/
helm install -n kube-node-tuning kube-node-tuning kube-node-tuning/kube-node-tuning --version $VERSION --create-namespace

Tips: If the machine is in China, you should following by: quick-start-in-china

The kernel's sysctl settings are applied to the node at /etc/99-kube-node-tuning.conf.

Check if the settings are applied by the following command. SSH to the node of cluster

cat /etc/sysctl.d/99-kube-node-tuning.conf
sysctl -a # view the sysctl setting

Configuration

# Change the config
kubectl -n kube-node-tuning edit cm/kube-node-tuning-config -o yaml

# Restart the DaemonSet
kubectl -n kube-node-tuning rollout restart ds kube-node-tuning

Roadmap

  • Different OS Support. (Ubuntu, CentOS, RHEL, etc.)
  • Multi profile
  • Operator instead of Daemonset