Modify kernel parameters in OpenShift 4 using Node Tuning Operator

Solution Verified - Updated -

Issue

  • How to modify an existing kernel parameter in OpenShift 4 nodes using sysctl?
  • How to configure tuned custom resource to modify kernel parameters?
  • How to modify fs.inotify.max_user_watches and fs.inotify.max_user_instances in RHCOS?

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4
  • Red Hat Enterprise Linux CoreOS (RHCOS)

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