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reboot\n\nThe libvirt driver power on and hard reboot destroys the domain first\nand unplugs the vifs then recreate the domain and replug the vifs.\nHowever nova does not wait for the network-vif-plugged event before\nunpause the domain. This can cause that the domain starts running and\nrequesting IP via DHCP before the networking backend finished plugging\nthe vifs.\n\nSo this patch adds a workaround config option to nova to wait for\nnetwork-vif-plugged events during hard reboot the same way as nova waits\nfor this event during new instance spawn.\n\nThis logic cannot be enabled unconditionally as not all neutron\nnetworking backend sending plug time events to wait for. Also the logic\nneeds to be vnic_type dependent as ml2/ovs and the in tree sriov backend\noften deployed together on the same compute. While ml2/ovs sends plug\ntime event the sriov backend does not send it reliably. So the\nconfiguration is not just a boolean flag but a list of vnic_types\ninstead. This way the waiting for the plug time event for a vif that is\nhandled by ml2/ovs is possible while the instance has other vifs handled\nby the sriov backend where no event can be expected.\n\nConflicts:\n      nova/conf/workarounds.py due to\n      If874f018ea996587e178219569c2903c2ee923cf not in stable/rocky\n\nThe stable/rocky specific changes:\n\n* The smart-nic vnic_type is removed from the allowed values as that\n  type is added in stein\n\nChange-Id: Ie904d1513b5cf76d6d5f6877545e8eb378dd5499\nCloses-Bug: #1946729\n(cherry picked from commit 68c970ea9915a95f9828239006559b84e4ba2581)\n(cherry picked from commit 0c41bfb8c5c60f1cc930ae432e6be460ee2e97ac)\n(cherry picked from commit 89c4ff5f7b45f1a5bed8b6b9b4586fceaa391bfb)\n(cherry picked from commit c531fdcc192afb5af628ac567cb0ff8aa3eab052)\n(cherry picked from commit 35e071470e2c5597444a7b85211a01e7fbc7c68b)\n(cherry picked from commit 870d8148ef1fc0c72554f24a20aec091e69a5656)\n(cherry picked from commit 3afb13a205d2424022beb6a8e538da383abdd06f)\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/3bac249a7c38bc7c10c5bbb7cc76d7e9e6eca648"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/3bac249a7c38bc7c10c5bbb7cc76d7e9e6eca648"}]},"branch":"refs/heads/stable/rocky"},"75e48ce99938c9803efb15ab639b1adee9e3ebb3":{"kind":"REWORK","_number":2,"created":"2021-11-19 17:05:19.000000000","uploader":{"_account_id":9708,"name":"Balazs Gibizer","display_name":"gibi","email":"gibizer@gmail.com","username":"gibi"},"ref":"refs/changes/04/818604/2","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova","ref":"refs/changes/04/818604/2","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova refs/changes/04/818604/2 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova refs/changes/04/818604/2 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova refs/changes/04/818604/2 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova refs/changes/04/818604/2"}}},"commit":{"parents":[{"commit":"32200feb78e3a4a8c5d205756007f3b6a3c12981","subject":"Merge \"[neutron] Get only ID and name of the SGs from Neutron\" into stable/rocky","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/32200feb78e3a4a8c5d205756007f3b6a3c12981"}]}],"author":{"name":"Balazs Gibizer","email":"balazs.gibizer@est.tech","date":"2021-10-11 12:41:37.000000000","tz":120},"committer":{"name":"Balazs Gibizer","email":"balazs.gibizer@est.tech","date":"2021-11-19 17:05:19.000000000","tz":0},"subject":"Add a WA flag waiting for vif-plugged event during reboot","message":"Add a WA flag waiting for vif-plugged event during reboot\n\nThe libvirt driver power on and hard reboot destroys the domain first\nand unplugs the vifs then recreate the domain and replug the vifs.\nHowever nova does not wait for the network-vif-plugged event before\nunpause the domain. This can cause that the domain starts running and\nrequesting IP via DHCP before the networking backend finished plugging\nthe vifs.\n\nSo this patch adds a workaround config option to nova to wait for\nnetwork-vif-plugged events during hard reboot the same way as nova waits\nfor this event during new instance spawn.\n\nThis logic cannot be enabled unconditionally as not all neutron\nnetworking backend sending plug time events to wait for. Also the logic\nneeds to be vnic_type dependent as ml2/ovs and the in tree sriov backend\noften deployed together on the same compute. While ml2/ovs sends plug\ntime event the sriov backend does not send it reliably. So the\nconfiguration is not just a boolean flag but a list of vnic_types\ninstead. This way the waiting for the plug time event for a vif that is\nhandled by ml2/ovs is possible while the instance has other vifs handled\nby the sriov backend where no event can be expected.\n\nConflicts:\n      nova/conf/workarounds.py due to\n      If874f018ea996587e178219569c2903c2ee923cf not in stable/rocky\n\nThe stable/rocky specific changes:\n\n* The smart-nic vnic_type is removed from the allowed values as that\n  type is added in stein\n\nChange-Id: Ie904d1513b5cf76d6d5f6877545e8eb378dd5499\nCloses-Bug: #1946729\n(cherry picked from commit 68c970ea9915a95f9828239006559b84e4ba2581)\n(cherry picked from commit 0c41bfb8c5c60f1cc930ae432e6be460ee2e97ac)\n(cherry picked from commit 89c4ff5f7b45f1a5bed8b6b9b4586fceaa391bfb)\n(cherry picked from commit c531fdcc192afb5af628ac567cb0ff8aa3eab052)\n(cherry picked from commit 35e071470e2c5597444a7b85211a01e7fbc7c68b)\n(cherry picked from commit 870d8148ef1fc0c72554f24a20aec091e69a5656)\n(cherry picked from commit 3afb13a205d2424022beb6a8e538da383abdd06f)\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/75e48ce99938c9803efb15ab639b1adee9e3ebb3"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova/commit/75e48ce99938c9803efb15ab639b1adee9e3ebb3"}]},"branch":"refs/heads/stable/rocky"}},"requirements":[],"submit_records":[],"submit_requirements":[]}