Bug 1530026

* 'Network provider'

If we are managing the external network provider of a host completely at the cluster level, we can remove the possibility to change the provider of a single host.

@Mor: How should the neutron interface mappings individual for a host be handled. Can they be removed, too?

What do you mean by Neutron interface mappings? If you referring to 'external_network_provider_configurations', I'm not sure if it's unnecessary (I don't know if anyone else uses it). We have another bug in REST https://bugzilla.redhat.com/show_bug.cgi?id=1528297 with the problem that install (reinstall) doesn't trigger OVN deployment on non-OVN host that resides on OVN cluster. Can we remove it and change the behaviour of install to consider cluster level setting?

> What do you mean by Neutron interface mappings? 

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.2-beta/html/administration_guide/chap-external_providers#Adding_an_External_Network_Provider
Table 11.2. Add Provider: General Settings
This "Interface Mappings" might be individual per host.
If they are individual per host, we still require the tab.

> If you referring to
> 'external_network_provider_configurations', I'm not sure if it's
> unnecessary (I don't know if anyone else uses it). 

'external_network_provider_configurations' is the container on REST-API to store such per-host information.
From my point of view, it would be good to discuss in this bug if per-host settings of network providers are still required. 

> We have another
> bug in REST https://bugzilla.redhat.com/show_bug.cgi?id=1528297 with
> the problem that install (reinstall) doesn't trigger OVN deployment
> on non-OVN host that resides on OVN cluster. Can we remove it and
> change the behaviour of install to consider cluster level setting?

Sure, this is the end of the path. Before we have to ensure that managing the external network provider at the cluster level works completely, including changing the provider, deploying and undeploying of the provider.

(In reply to Dominik Holler from comment #4)
> > What do you mean by Neutron interface mappings? 
> 
> https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.2-
> beta/html/administration_guide/chap-
> external_providers#Adding_an_External_Network_Provider
> Table 11.2. Add Provider: General Settings
> This "Interface Mappings" might be individual per host.
> If they are individual per host, we still require the tab.
> 
> > If you referring to
> > 'external_network_provider_configurations', I'm not sure if it's
> > unnecessary (I don't know if anyone else uses it). 
> 
> 'external_network_provider_configurations' is the container on REST-API to
> store such per-host information.
> From my point of view, it would be good to discuss in this bug if per-host
> settings of network providers are still required. 
> 
> > We have another
> > bug in REST https://bugzilla.redhat.com/show_bug.cgi?id=1528297 with
> > the problem that install (reinstall) doesn't trigger OVN deployment
> > on non-OVN host that resides on OVN cluster. Can we remove it and
> > change the behaviour of install to consider cluster level setting?
> 
> Sure, this is the end of the path. Before we have to ensure that managing
> the external network provider at the cluster level works completely,
> including changing the provider, deploying and undeploying of the provider.

Hi Dominik, 

- Managing the external network provider at the cluster level works completely with install and re-install for deploy.
- undeploy? do you mean removing the packages? i don't think you are going to do it from what i know. 
- change provider? you mean to another ovn provider? or neutron provider?

(In reply to Michael Burman from comment #5)
> (In reply to Dominik Holler from comment #4)
> Hi Dominik, 
> 
> - change provider? you mean to another ovn provider? or neutron provider?

Yes, if we change the default networking provider of a cluster, the change is currently not propagated to the hosts.

> - undeploy? do you mean removing the packages? i don't think you are going
> to do it from what i know. 

Yes, if the host is removed, the ovn-controller on the host is still connected to the ovn-central.

> - Managing the external network provider at the cluster level works
> completely with install and re-install for deploy.

But I am convinced now that the external network provider tab on add host window should be removed, including the neutron-deployment by oVirt.

still required in 4.3

Reopening for 4.4 inclusion

Verified on - rhvm-4.4.0-0.4.master.el7.noarch

This bugzilla is included in oVirt 4.4.0 release, published on May 20th 2020.

Since the problem described in this bug report should be
resolved in oVirt 4.4.0 release, it has been closed with a resolution of CURRENT RELEASE.

If the solution does not work for you, please open a new bug report.