Bug 1438880

It doesn't seem related to rhev-h, moving to ovirt-host-deploy component.

Moving to network for further investigation since they own the ovs support feature. 
Looks like a regression due to changes in RHOSP10 but I let network team investigate.

We do not support the deployment of Neutron services on the hosts. 
In any case, you can try to install the needed OSP packages and try again.
We only support manual configuration in 4.0 and in RHV 4.1 we added support of using director provisioned networker nodes.

Hello,
we were trying to integrate RHEV with an external network provider, in this case RHOSP 10. Our neutron services are OVS and neutron agent. 
Are you saying what is described here is not supported?

http://rhelblog.redhat.com/2016/09/19/integrating-red-hat-virtualization-and-red-hat-openstack-platform-with-neutron-networking/

"
The actual steps to take advantage of the integration between RHV 4 and RHOSP 8 are straightforward. The steps are as follows:

    Install the OpenStack Neutron packages on the RHV hypervisor hosts
    Configure hosts (hypervisor nodes) – a very quick text edit
    Define OpenStack Neutron as an “External Network Provider” in RHV Manager
    Create one or more hosts in RHV that utilize the Neutron integration
    Import one or more networks from RHOSP into RHV
    Create one or more virtual machines that use the Neutron network(s)
"

Regards
Alessio Dini

(In reply to Alessio from comment #4)
> Hello,
> we were trying to integrate RHEV with an external network provider, in this
> case RHOSP 10. Our neutron services are OVS and neutron agent. 
> Are you saying what is described here is not supported?
> 

It is support, as this says:

>     Install the OpenStack Neutron packages on the RHV hypervisor hosts

Right now you have missing packages.

>     Configure hosts (hypervisor nodes) – a very quick text edit

This means doing manual configuration of the Neutron agent.

Ok, so adding hosts with external providers via administration portal is not supported. Can I suggest to add a message or some warning in the network provider tab? Something like "WARNING: Adding hosts with network provider is not supported!". I'm asking because this limitation it's missing, also on the official Redhat documentation.
Regards
Alessio Dini

Created attachment 1279968 [details]
Neutron providing add host warning

We already provide a warning about deployment of Neutron provider.

(In reply to Leon Goldberg from comment #8)
> Created attachment 1279968 [details]
> Neutron providing add host warning
> 
> We already provide a warning about deployment of Neutron provider.

Hello,
in the comment #3 Yaniv Dary said is not supported to add hosts with external provider via rhevm dashboard.
I actually checked again the warning you are talking about.
From the dashboard,adding a new hosts selecting the external provider section it will display:

"Automatic deployment of the Neutron provider on host may not work.
It is highly recommended to manually deploy the OVS agent on the host."

This is different from a not supported operation.
This detail is missing from any documentation, as well as the supported operation:

1) Install packages and manually configure neutron agents on the host u want to add to a cluster
2) Add the host via rhevm dashboard without selecting the network provider section 
( in 4.1 we can't add additional hosts via hosted-engine command )

Best Regards
Alessio Dini

Leon, could you suggest a clearer text (and where it should be placed) for our documentation?

*** Bug 1446264 has been marked as a duplicate of this bug. ***

Moving to 'NEW' to be reassigned as resources allow.

Dan, did you mean to set a needinfo here?

Let add a note the docs we created for director integration that it is the only support path in RHV.

Assigning to Emma for review.

Emma, we need to add a note to the following section in 4.1:

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html/administration_guide/sect-Adding_External_Providers#Adding_an_OpenStack_Network_Service_Neutron_for_Network_Provisioning

The note should state that using the Red Hat OpenStack Platform director to deploy the Networker role on a network node before adding it to the Red Hat Virtualization Manager as a host is the only supported method for integrating OpenStack Networking with RHV.

Hi Leon
In addition to adding the note that Lucy suggested, I think the documentation needs a couple more clarifications.
1. In the following sentence, shouldn't we say that it is a Manual configuration?

"To use neutron networks, hosts must have the neutron agents configured."

Is this configuration done via the Director?

2. Shouldn't we also change the text in the following section from "you CAN use the director" to you Must use the director...

7.5.4. Adding a Red Hat OpenStack Platform Network Node as a Host

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html/administration_guide/sect-host_tasks#Adding_a_RHOSP_Network_Node_as_a_Host

Hi Marcin.
Leon suggested I consult with you about the questions in comment 15. Thanks!

Since the original bug could be important, could you please provider the version info for the env:
yum info openvswitch

Text approved by Yaniv.

Now published at https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html/administration_guide/sect-adding_external_providers#Adding_an_OpenStack_Network_Service_Neutron_for_Network_Provisioning

and https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html/administration_guide/sect-Host_Tasks#Adding_a_RHOSP_Network_Node_as_a_Host