What is oc adm drain --delete-local-data option?

Solution Unverified - Updated -

Issue

  • The Red Hat Openshift Container Platform Documentation about Operating System Updates and Upgrades talks about draining the nodes prior updating the OS packages.
  • The option --delete-local-data option is set to true in the same, what does it mean?

Environment

  • Red Hat OpenShift Container Platform
    • 3.x

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