Moving from a single master cluster to multiple masters is supported after v3.7?

Solution In Progress - Updated -

Issue

  • After v3.7, single msater always have separated master-api and master-controllers services. Hence, adding master hosts should be possible. Is it supported?

  • OpenShift 3.7 docs still mentions:

Moving from a single master cluster to multiple masters after installation is not supported.

Environment

  • OpenShift Container Platform
    • 3.7.x

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