3.4.4.10. Setting the import mode
To set the import mode when using oc new-app, add the --import-mode flag. This flag can be appended with Legacy or PreserveOriginal, which provides users the option to create image streams using a single sub-manifest, or all manifests, respectively.
$ oc new-app --image=registry.redhat.io/ubi8/httpd-24:latest --import-mode=Legacy --name=test
$ oc new-app --image=registry.redhat.io/ubi8/httpd-24:latest --import-mode=PreserveOriginal --name=test