[Users] hosted engine setup (network)

[René Koch]

On 03/03/2014 05:18 PM, Antoni Segura Puimedon wrote:
>
>
> ----- Original Message -----
>> From: "René Koch" <rkoch at linuxland.at>
>> To: users at ovirt.org
>> Sent: Monday, March 3, 2014 12:48:43 PM
>> Subject: [Users] hosted engine setup (network)
>>
>> Hi,
>>
>> During hosted engine setup I faced issues with network configuration on
>> my CentOS 6.5 hosts:
>>
>> My network setup was the following which doesn't work with hosted engine
>> setup:
>> - eth0.200 (VLAN tag 200) should become ovirtmgmt interface
>> - GATEWAY is in /etc/sysconfig/network and not in ifcfg-eth0.200
>>
>> The following errors occured:
>> 014-02-25 15:42:31 INFO
>> otopi.plugins.ovirt_hosted_engine_setup.network.bridge bridge._misc:189
>> Configuring the management bridge
>> 2014-02-25 15:42:31 DEBUG
>> otopi.plugins.ovirt_hosted_engine_setup.network.bridge bridge._misc:198
>> getVdsCaps for eth0: {'addr': '', 'cfg': {'DEVICE': 'eth0', 'PEERDNS':
>> 'no', 'NM_CONTROLLED': 'no', 'BOOTPROTO': 'none', 'HWADDR': '00:25:9
>> 0:75:87:C2', 'ONBOOT': 'yes'}, 'ipv6addrs':
>> ['fe80::225:90ff:fe75:87c2/64'], 'mtu': '1500', 'netmask': '', 'hwaddr':
>> '00:25:90:75:87:c2', 'speed': 1000}
>> 2014-02-25 15:42:31 DEBUG otopi.context context._executeMethod:152
>> method exception
>> Traceback (most recent call last):
>>     File "/usr/lib/python2.6/site-packages/otopi/context.py", line 142,
>> in _executeMethod
>>       method['method']()
>>     File
>> "/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/ovirt-hosted-engine-setup/network/bridge.py",
>> line 231, in _misc
>>       'gateway=%s' % caps['cfg']['GATEWAY'],
>> KeyError: 'GATEWAY'
>>
>> This can be solved by setting GATEWAY in ifcfg-eth* file instead of
>> /etc/sysconfig/network
>
> Currently we look only at ifcfg files for that sort of information. In the future, though, we'll be
> checking things like dhcp leases for the device to know what is the bootproto.
>
>>
>>
>> Next, VLAN tagged interfaces don't work:
>> 2014-02-25 15:35:20 INFO
>> otopi.plugins.ovirt_hosted_engine_setup.network.bridge bridge._misc:189
>> Configuring the management bridge
>> 2014-02-25 15:35:20 DEBUG otopi.context context._executeMethod:152
>> method exception
>> Traceback (most recent call last):
>>     File "/usr/lib/python2.6/site-packages/otopi/context.py", line 142,
>> in _executeMethod
>>       method['method']()
>>     File
>> "/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/ovirt-hosted-engine-setup/network/bridge.py",
>> line 194, in _misc
>>       ].s.getVdsCapabilities()['info']['nics'][nics]
>> KeyError: 'eth0.200'
>>
>> So I had to do the following:
>> - Set switch port to untagged for this VLAN
>> - Configure eth0 instead of eth0.200
>> - Run hosted engine setup
>> - Configure VLAN for ovirtmgmt in oVirt (which surprisingly worked for
>> an active interface)
>> - Configure VLAN tagging on hosts
>> - Reconfigure switch ports
>> - Sync networks in oVirt network setup tab
>>
>> As this was a real pain to do I would love to see support for VLAN
>> tagging in hosted engine setup :)
>>
>>
>> Shall I open bug reports for these 2 issues or are they already known?
>
> I'd say for the second one. /etc/sysconfig/network is losing relevance fast
> and I think the new code that checks live device information is better than
> parsing that file.


Thanks a lot for the information. Good to hear that the network part 
will be improved.

Bug is created for the VLAN tagged interfaces:
https://bugzilla.redhat.com/show_bug.cgi?id=1072027


Regards,
René


>
>>
>>
>> --
>> Best Regards
>>
>> René Koch
>> Senior Solution Architect
>>
>> ============================================
>> LIS-Linuxland GmbH
>> Brünner Straße 163, A-1210 Vienna
>>
>> Phone:   +43 1 236 91 60
>> Mobile:  +43 660 / 512 21 31
>> E-Mail:  rkoch at linuxland.at
>> ============================================
>>
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