If the install-config.yaml contains baremetal host configuration fields, and no host fields are defined in agent-config.yaml, use the install-config settings to define the hosts. The following fields will be copied over from the bm host definition
https://github.com/openshift/installer/blob/master/pkg/types/baremetal/platform.go#L37

• name -> hostname
• role -> role
• rootDeviceHints -> rootDeviceHints
• networkConfig -> networkConfig

The install-config struct does not have an interfaces field that matches agent-config, instead the bootMacAddress in install-config host will be used to create the interfaces array.

The hardwareProfile and bootMode fields will not be copied.