oadm diagnostics tool is showing Get https://xxx:8443/api: x509: certificate signed by unknown authority after setting up a custom certificate

Solution In Progress - Updated -

Issue

  • oadm diagnostics tool is showing Get https://xxx:8443/api: x509: certificate signed by unknown authority after configuring a custom certificate for publicMasterURL after setting up a custom certificate.

Environment

  • OpenShift Container Platform 3.x

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