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Description of problem: During the overcloud deployment, we patch a few rpms into the qcow2 image (eg: ivs.rpm) which we do not want on the controller nodes. Likewise, we will need to have different rpms on compute nodes based on the type of virtual switch installed on them (IVS vs NFVSwitch). Hence, we need the ability use and specify different qcow2 images for compute and controller nodes.
James, this exists today, right?
yes, have a look at the paramters called <role>Image in overcloud-without-mergepy.yaml. The controller image is specified with the controllerImage paramater. The compute image is specified with the NovaImage paramter.
Thanks James. Moving this to documentation so we can include the info in our docs.
Scoping old bug. So this should now be do-able from OSP10+ using the [ROLE]Image parameter. For example, ControllerImage. There are some other parameters that are [ROLE]-based and are worth documenting for OSP10. For OSP11+, we introduced the Overcloud Params guide. However, [ROLE]Image didn't make it for some reason: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/11/html/overcloud_parameters/role_based_parameters Need to investigate why.
Parameter now available in OSP13 guide: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html-single/overcloud_parameters/index#role-based-parameters