Description of problem:

When running the openshift-installer in a disconnected environment are getting the warning message as below but the installation still succeeds.

“Unable to validate the release image architecture, skipping validation”

This appears to be due to the oc command being run here https://github.com/openshift/installer/blob/master/pkg/asset/agent/common.go#L63-L73 without using the info from imageContentSources to build the icsp-file parameter.