Re: [ovirt-users] Issue with OVN/OVS and mandatory ovirtmgmt network

From: "Marcin Mirecki" <mmirecki(a)redhat.com&gt; To: "Sverker Abrahamsson" <sverker(a)abrahamsson.com&gt; Cc: "Ovirt Users" <users(a)ovirt.org&gt; Sent: Wednesday, December 28, 2016 12:06:26 PM Subject: Re: [ovirt-users] Issue with OVN/OVS and mandatory ovirtmgmt network > I have an internal OVS bridge called ovirtbridge which has a port with > IP address, but in the host network settings that port is not visible. I just verified and unfortunately the virtual ports are not visible in engine to assign a network to :( I'm afraid that the engine is not ready for such a scenario (even if it works). Please give me some time to look for a solution. ----- Original Message ----- > From: "Sverker Abrahamsson" <sverker(a)abrahamsson.com&gt; > To: "Marcin Mirecki" <mmirecki(a)redhat.com&gt; > Cc: "Ovirt Users" <users(a)ovirt.org&gt; > Sent: Wednesday, December 28, 2016 11:48:24 AM > Subject: Re: [ovirt-users] Issue with OVN/OVS and mandatory ovirtmgmt > network > > Hi Marcin > Yes, that is my issue. I don't want to let ovirt/vdsm see eth0 nor > ovsbridge0 since as soon as it sees them it messes up the network config > so that the host will be unreachable. > > I have an internal OVS bridge called ovirtbridge which has a port with > IP address, but in the host network settings that port is not visible. > It doesn't help to name it ovirtmgmt. > > The engine is able to communicate with the host on the ip it has been > given, it's just that it believes that it HAS to have a ovirtmgmt > network which can't be on OVN. > > /Sverker > > > Den 2016-12-28 kl. 10:45, skrev Marcin Mirecki: > > Hi Sverker, > > > > The management network is mandatory on each host. It's used by the > > engine to communicate with the host. > > Looking at your description and the exception it looks like it is > > missing. > > The error is caused by not having any network for the host > > (network list retrieved in InterfaceDaoImpl.getHostNetworksByCluster - > > which > > gets all the networks on nics for a host from vds_interface table in the > > DB). > > > > Could you maybe create a virtual nic connected to ovsbridge0 (as I > > understand you > > have no physical nic available) and use this for the management network? > > > >> I then create a bridge for use with ovirt, with a private address. > > I'm not quite sure I understand. Is this yet another bridge connected to > > ovsbridge0? > > You could also attach the vnic for the management network here if need > > be. > > > > Please keep in mind that OVN has no use in setting up the management > > network. > > The OVN provider can only handle external networks, which can not be used > > for a > > management network. > > > > Marcin > > > > > > ----- Original Message ----- > >> From: "Sverker Abrahamsson" <sverker(a)abrahamsson.com&gt; > >> To: users(a)ovirt.org > >> Sent: Wednesday, December 28, 2016 12:39:59 AM > >> Subject: [ovirt-users] Issue with OVN/OVS and mandatory ovirtmgmt > >> network > >> > >> > >> > >> Hi > >> For long time I've been looking for proper support in ovirt for Open > >> vSwitch > >> so I'm happy that it is moving in the right direction. However, there > >> seems > >> to still be a dependency on a ovirtmgmt bridge and I'm unable to move > >> that > >> to the OVN provider. > >> > >> The hosting center where I rent hw instances has a bit special network > >> setup, > >> so I have one physical network port with a /32 netmask and > >> point-to-point > >> config to router. The physical port I connect to a ovs bridge which has > >> the > >> public ip. Since ovirt always messes up the network config when I've > >> tried > >> to let it have access to the network config for the physical port, I've > >> set > >> eht0 and ovsbridge0 as hidden in vdsm.conf. > >> > >> > >> I then create a bridge for use with ovirt, with a private address. With > >> the > >> OVN provider I am now able to import these into the engine and it looks > >> good. When creating a VM I can select that it will have a vNic on my OVS > >> bridge. > >> > >> However, I can't start the VM as an exception is thrown in the log: > >> > >> 2016-12-28 00:13:33,350 ERROR [org.ovirt.engine.core.bll.RunVmCommand] > >> (default task-5) [3c882d53] Error during ValidateFailure.: > >> java.lang.NullPointerException > >> at > >> org.ovirt.engine.core.bll.scheduling.policyunits.NetworkPolicyUnit.validateRequiredNetworksAvailable(NetworkPolicyUnit.java:140) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.scheduling.policyunits.NetworkPolicyUnit.filter(NetworkPolicyUnit.java:69) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.scheduling.SchedulingManager.runInternalFilters(SchedulingManager.java:597) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.scheduling.SchedulingManager.runFilters(SchedulingManager.java:564) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.scheduling.SchedulingManager.canSchedule(SchedulingManager.java:494) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.validator.RunVmValidator.canRunVm(RunVmValidator.java:133) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.RunVmCommand.validate(RunVmCommand.java:940) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.CommandBase.internalValidate(CommandBase.java:886) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.CommandBase.validateOnly(CommandBase.java:366) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner.canRunActions(PrevalidatingMultipleActionsRunner.java:113) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner.invokeCommands(PrevalidatingMultipleActionsRunner.java:99) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.PrevalidatingMultipleActionsRunner.execute(PrevalidatingMultipleActionsRunner.java:76) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.Backend.runMultipleActionsImpl(Backend.java:613) > >> [bll.jar:] > >> at > >> org.ovirt.engine.core.bll.Backend.runMultipleActions(Backend.java:583) > >> [bll.jar:] > >> > >> > >> Looking at that section of code where the exception is thrown, I see > >> that > >> it > >> iterates over host networks to find required networks, which I assume is > >> ovirtmgmt. In the host network setup dialog I don't see any networks at > >> all > >> but it lists ovirtmgmt as required. It also list the OVN networks but > >> these > >> can't be statically assigned as they are added dynamically when needed, > >> which is fine. > >> > >> I believe that I either need to remove ovirtmgmt network or configure > >> that > >> it > >> is provided by the OVN provider, but neither is possible. Preferably it > >> shouldn't be hardcoded which network is management and mandatory but be > >> possible to configure. > >> > >> /Sverker > >> Den 2016-12-27 kl. 17:10, skrev Marcin Mirecki: > >> > >> > > _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users