[IBP] new udev NIC mappings will applied only after reboot

[Alexander Gordeev]

Current implementation doesn't do a node reboot action meanwhile manipulating with 70-net-persistent.rules file.
So, the actual changes won't be applied until next reboot.
This leads to improper NIC order.

In order to change NIC order without reboot, we could try to re-load NIC's kernel modules.

[Alexander Gordeev (a-gordeev)]

centos isn't affected

[Michael Petersen (mpetason)]

Is it possible to inject the 70-net-persistent rules on provision instead of generating one? I know you can do this manual with guestfish, if you have the Mac addresses, however I don't know of an automated way to do this.

[Jason Venner (jvenner-e)]

Can't we order the nic interfaces in the 70-net-persistent rules file before the first boot of the native OS.

I believe when we jump up to 14.X this may handled with systemd changes http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/

I haven't tried this, but I believe it also works

Sometimes you get an incorrect matching of ethernet device numbers and MAC addresses. Sometimes this is really important, like when running in a VM and each device is assigned to a different VLAN.

bring down means stop the networking so that there is no state [successfully running service networking stop]
Bring the network interfaces down, then
modify /etc/udev/rules.d/70-persistent-net.rules (or its equivalent)
re-load with udevadm control --reload-rules and finally
re-trigger with udevadm trigger --attr-match=subsystem=net
bring the network interfaces up.
I was surprised how well this worked.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/155703

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/6.0
Review: https://review.openstack.org/155782

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/155703
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=7499c4025fecab0bf0769aaa4e9b561423128b27
Submitter: Jenkins
Branch: master

commit 7499c4025fecab0bf0769aaa4e9b561423128b27
Author: Alexander Gordeev <email address hidden>
Date: Fri Feb 13 13:47:22 2015 +0300

    [IBP] move udev rules manipulating out of cloud-init

    We need to create udev rules prior the first boot. It's significally
    easier to inject files and less magic required.

    Change-Id: Iaa4dddad0efe5ac41f6b1284a8c4aa85066e39a9
    Closes-Bug: #1420885

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/155782
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=6797802764d40a5bf860d961193cd7b8d3d84a86
Submitter: Jenkins
Branch: stable/6.0

commit 6797802764d40a5bf860d961193cd7b8d3d84a86
Author: Alexander Gordeev <email address hidden>
Date: Fri Feb 13 13:47:22 2015 +0300

    [IBP] move udev rules manipulating out of cloud-init

    We need to create udev rules prior the first boot. It's significally
    easier to inject files and less magic required.

    Change-Id: Iaa4dddad0efe5ac41f6b1284a8c4aa85066e39a9
    Closes-Bug: #1420885

[Anastasia Palkina (apalkina)]

Verified on ISO #210

"build_id": "2015-03-19_22-54-44", "ostf_sha": "b9a090c71682fbea5d9351051827d7d654d07be3", "build_number": "210", "release_versions": {"2014.2-6.1": {"VERSION": {"build_id": "2015-03-19_22-54-44", "ostf_sha": "b9a090c71682fbea5d9351051827d7d654d07be3", "build_number": "210", "api": "1.0", "nailgun_sha": "1d2bd383caecc5ec3f86bf93ccca940326f23e97", "production": "docker", "python-fuelclient_sha": "b223dcaf5fdad2f714cd245958fefe03995d6207", "astute_sha": "4a117a1ca6bdcc34fe4d086959ace1a6d18eeca9", "feature_groups": ["mirantis"], "release": "6.1", "fuelmain_sha": "f3d6353c08d8eb709c7ab100b56dc2bebef4157f", "fuellib_sha": "7764225db5bc653563309912afbb4058283c808b"}}}, "auth_required": true, "api": "1.0", "nailgun_sha": "1d2bd383caecc5ec3f86bf93ccca940326f23e97", "production": "docker", "python-fuelclient_sha": "b223dcaf5fdad2f714cd245958fefe03995d6207", "astute_sha": "4a117a1ca6bdcc34fe4d086959ace1a6d18eeca9", "feature_groups": ["mirantis"], "release": "6.1", "fuelmain_sha": "f3d6353c08d8eb709c7ab100b56dc2bebef4157f", "fuellib_sha": "7764225db5bc653563309912afbb4058283c808b"