Re: [ovirt-users] Ovirt + OpenVSwitch
On Mon, May 23, 2016 at 02:38:06PM +0200, Sverker Abrahamsson wrote: > I've been giving this a new try. Unfortunately the setup script for hosted > engine seems to be hardcoded to create a bridge on a physical network > interface. I was somewhat successful by creating a dummy ovirtmgmt bridge > interface and patching bridge.py to give back a static ip. Then the engine > started up but failed later in the setup due to a faulty firewall rule. > > I then thought that ok I'll restore the network config to the original > settings, run the setup and then add the OpenVSwitch config. That failed > even more miserably before I got that far.. > > As soon as vdsm activates it will write ifcfg files for eth0 and ovirtmgmt > but with a config that doesn't work in my case as there are some additional > parameters that are needed. For example it is missing the HWADDR setting in > ifcfg-eth0. This is using the beta1 release of 4.0 > > Even if I boot rescue image and correct the network configuration it will > again be overwritten by vdsm on boot. > > I really need to make Ovirt understand that it must NOT change any network > configuration on the host, just use what is provided to it and if there is > something that it doesn't like then log the settings that should be changed. > > How can I accomplish that? I did not follow all the complexities (host-engine-related and others) but for your latter question, the suggestion is to write a before_ifcfg_write hook, as defined in https://gerrit.ovirt.org/44552 . Here's an example for such a hook script https://bugzilla.redhat.com/attachment.cgi?id=1098701 which makes sure that whatever Vdsm wants to do to your ifcfg files, you have the final word about what's written there. > > /Sverker ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Ovirt + OpenVSwitch
I've been giving this a new try. Unfortunately the setup script for hosted engine seems to be hardcoded to create a bridge on a physical network interface. I was somewhat successful by creating a dummy ovirtmgmt bridge interface and patching bridge.py to give back a static ip. Then the engine started up but failed later in the setup due to a faulty firewall rule. I then thought that ok I'll restore the network config to the original settings, run the setup and then add the OpenVSwitch config. That failed even more miserably before I got that far.. As soon as vdsm activates it will write ifcfg files for eth0 and ovirtmgmt but with a config that doesn't work in my case as there are some additional parameters that are needed. For example it is missing the HWADDR setting in ifcfg-eth0. This is using the beta1 release of 4.0 Even if I boot rescue image and correct the network configuration it will again be overwritten by vdsm on boot. I really need to make Ovirt understand that it must NOT change any network configuration on the host, just use what is provided to it and if there is something that it doesn't like then log the settings that should be changed. How can I accomplish that? /Sverker On 2016-04-13 14:50, Dan Kenigsberg wrote: On Mon, Apr 11, 2016 at 01:24:51PM +0200, Sverker Abrahamsson wrote: Hi My usecase is that I am setting up a lab to emulate a customers production environment which has multiple vlans. As this is done in a hosting environment where I don't have any control over the switches, I've created virtual switches with OpenVSwitch which connects together a couple of physical servers which are running virtual machines to emulate their servers. Currently I'm running a few virtual machines created manually with libvirt but looking for a more user friendly way of handling them. I'm not looking at managing the network setup from Ovirt, I just want it to use the network that is present and create VM's there. In this case, you may want to define your ovs-based network in libvirt (virsh net-define bla.xml) and use vdsm-hook-extnet to let ovirt consume it. The tweaking that I did with 3.6 was to run the hosted-engine setup but where it failed I put the right answer in the file so that it would skip over that part. I got that far that it attempts to start the vm but as it doesn't give right parameters to libvirt it fails to create a port on the bridge. I'm not having much luck with the 4.0 alpha though, this is a separate machine that I set up for this testing but when I run hosted-engine --deploy it just returns without any message. I did run the cleanup script found at http://www.ovirt.org/documentation/how-to/hosted-engine/ and rebooted in between but still no luck /Sverker ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Ovirt + OpenVSwitch
On Mon, Apr 11, 2016 at 01:24:51PM +0200, Sverker Abrahamsson wrote: > Hi > My usecase is that I am setting up a lab to emulate a customers production > environment which has multiple vlans. As this is done in a hosting > environment where I don't have any control over the switches, I've created > virtual switches with OpenVSwitch which connects together a couple of > physical servers which are running virtual machines to emulate their > servers. Currently I'm running a few virtual machines created manually with > libvirt but looking for a more user friendly way of handling them. > > I'm not looking at managing the network setup from Ovirt, I just want it to > use the network that is present and create VM's there. In this case, you may want to define your ovs-based network in libvirt (virsh net-define bla.xml) and use vdsm-hook-extnet to let ovirt consume it. > > The tweaking that I did with 3.6 was to run the hosted-engine setup but > where it failed I put the right answer in the file so that it would skip > over that part. I got that far that it attempts to start the vm but as it > doesn't give right parameters to libvirt it fails to create a port on the > bridge. > > I'm not having much luck with the 4.0 alpha though, this is a separate > machine that I set up for this testing but when I run hosted-engine --deploy > it just returns without any message. I did run the cleanup script found at > http://www.ovirt.org/documentation/how-to/hosted-engine/ and rebooted in > between but still no luck > > /Sverker ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Ovirt + OpenVSwitch
Hi My usecase is that I am setting up a lab to emulate a customers production environment which has multiple vlans. As this is done in a hosting environment where I don't have any control over the switches, I've created virtual switches with OpenVSwitch which connects together a couple of physical servers which are running virtual machines to emulate their servers. Currently I'm running a few virtual machines created manually with libvirt but looking for a more user friendly way of handling them. I'm not looking at managing the network setup from Ovirt, I just want it to use the network that is present and create VM's there. The tweaking that I did with 3.6 was to run the hosted-engine setup but where it failed I put the right answer in the file so that it would skip over that part. I got that far that it attempts to start the vm but as it doesn't give right parameters to libvirt it fails to create a port on the bridge. I'm not having much luck with the 4.0 alpha though, this is a separate machine that I set up for this testing but when I run hosted-engine --deploy it just returns without any message. I did run the cleanup script found at http://www.ovirt.org/documentation/how-to/hosted-engine/ and rebooted in between but still no luck /Sverker On 2016-04-07 13:49, Dan Kenigsberg wrote: On Wed, Apr 06, 2016 at 11:57:08AM -0400, Martin Mucha wrote: Hi, I think OpenVSwitch should be supported in 4.0. M. - Original Message - Has anybody succeeded in installing Ovirt 3.6 with hosted engine on a server which uses OpenVSwitch for the network config? I believe my issue is that Ovirt wants to control the network to create a bridge for its management and I wants it to just use whatever network is available on the host without trying to be clever about it. I was able to tweak it to get to the final stage where it fails on waiting for the engine to start. Martin is right, but we should understand your usage of OpenVSwitch first. Do you intend to use it for networking of ovirt VMs? For something else? How did you tweak "it" (ovirt? hosted engine? ovs?) ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Ovirt + OpenVSwitch
On Wed, Apr 06, 2016 at 11:57:08AM -0400, Martin Mucha wrote: > Hi, > > I think OpenVSwitch should be supported in 4.0. > > M. > > - Original Message - > > Has anybody succeeded in installing Ovirt 3.6 with hosted engine on a > > server which uses OpenVSwitch for the network config? > > > > I believe my issue is that Ovirt wants to control the network to create > > a bridge for its management and I wants it to just use whatever network > > is available on the host without trying to be clever about it. I was > > able to tweak it to get to the final stage where it fails on waiting for > > the engine to start. Martin is right, but we should understand your usage of OpenVSwitch first. Do you intend to use it for networking of ovirt VMs? For something else? How did you tweak "it" (ovirt? hosted engine? ovs?) ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Ovirt + OpenVSwitch
Hi, I think OpenVSwitch should be supported in 4.0. M. - Original Message - > Has anybody succeeded in installing Ovirt 3.6 with hosted engine on a > server which uses OpenVSwitch for the network config? > > I believe my issue is that Ovirt wants to control the network to create > a bridge for its management and I wants it to just use whatever network > is available on the host without trying to be clever about it. I was > able to tweak it to get to the final stage where it fails on waiting for > the engine to start. > > Best regards > Sverker > > ___ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Ovirt + OpenVSwitch
On Wed, Apr 6, 2016 at 11:39 AM, Sverker Abrahamsson wrote: > Has anybody succeeded in installing Ovirt 3.6 with hosted engine on a > server which uses OpenVSwitch for the network config? > > I believe my issue is that Ovirt wants to control the network to create a > bridge for its management and I wants it to just use whatever network is > available on the host without trying to be clever about it. I was able to > tweak it to get to the final stage where it fails on waiting for the engine > to start. > > Best regards > Sverker > > _ > Not tested yet myself, but you can use Openstack Neutron Services (and so Open vSwitch) as a network provider. There is also an appliance available with openstack components ready, but I think you can install/deploy them yourself if you have the knowledge. See here http://www.ovirt.org/develop/release-management/features/cloud/neutronvirtualappliance/ I see that the doc contains oVirt 3.5 as a reference, so I don't kow exactly if it is ready for 3.6 too and also if it contains an RDO version newer than the cited IceHouse. HIH digging, Gianluca ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] Ovirt + OpenVSwitch
Has anybody succeeded in installing Ovirt 3.6 with hosted engine on a server which uses OpenVSwitch for the network config? I believe my issue is that Ovirt wants to control the network to create a bridge for its management and I wants it to just use whatever network is available on the host without trying to be clever about it. I was able to tweak it to get to the final stage where it fails on waiting for the engine to start. Best regards Sverker ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
