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tripleo-heat-templates/releasenotes/notes/odl_upgrade-f5540d242b9a6b52.yaml

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Upgrade ODL Major upgrade (Q -> R) is complex in ODL. There are multiple components involved. This patch enables major upgrade of ODL. Steps involved are: 1. Block OVS instances to connect to ODL 2. Set ODL upgrade flag to True 3. Start ODL 4. Start Neutron re-sync and wait for it to finish 5. Delete OVS groups and ports 6. Stop OVS 7. Unblock OVS ports 8. Start OVS 9. Unset ODL upgrade flag Change-Id: Icf98a1215900762a0677aabee1cccbf1d130e5bd
2018-01-17 12:28:55 +05:30
---
Minor update steps for ODL Updating OpenStack (within release) means updating ODL from v1 to v1.1. This is done by "openstack overcloud update" which collects update_tasks. ODL needs 2 different steps to achieve this minor update. These are called Level1 and Level2. L1 is simple - stop ODL, update, start. This is taken care by paunch and no separate implementation is needed. L2 has extra steps which are implemented in update_tasks and post_update_tasks. Updating ODL within the same major release (1->1.1) consists of either L1 or L2 steps. These steps are decided from ODLUpdateLevel parameter specified in environments/services-docker/update-odl.yaml. Upgrading ODL to the next major release (1.1->2) requires only the L2 steps. These are implemented as upgrade_tasks and post_upgrade_tasks in https://review.openstack.org/489201. Steps involved in level 2 update are 1. Block OVS instances to connect to ODL 2. Set ODL upgrade flag to True 3. Start ODL 4. Start Neutron re-sync and wait for it to finish 5. Delete OVS groups and ports 6. Stop OVS 7. Unblock OVS ports 8. Start OVS 9. Unset ODL upgrade flag These steps are exactly same as upgrade_tasks. The logic implemented is: follow upgrade_tasks; when update_level == 2 Change-Id: Ie532800663dd24313a7350b5583a5080ddb796e7
2018-01-23 22:43:49 +05:30
upgrade:
Upgrade ODL Major upgrade (Q -> R) is complex in ODL. There are multiple components involved. This patch enables major upgrade of ODL. Steps involved are: 1. Block OVS instances to connect to ODL 2. Set ODL upgrade flag to True 3. Start ODL 4. Start Neutron re-sync and wait for it to finish 5. Delete OVS groups and ports 6. Stop OVS 7. Unblock OVS ports 8. Start OVS 9. Unset ODL upgrade flag Change-Id: Icf98a1215900762a0677aabee1cccbf1d130e5bd
2018-01-17 12:28:55 +05:30
- Add ODL upgradability
Steps of upgrade are as follows
1. Block OVS instances to connect to ODL done in upgrade_tasks
2. Set ODL upgrade flag to True done in upgrade_tasks
3. Start ODL. This is done via docker config step 1
4. Start Neutron re-sync triggered by starting of Neutron server
container in step 4 of docker config
5. Delete OVS groups and ports
6. Stop OVS
7. Unblock OVS ports
8. Start OVS
9. Unset ODL upgrade flag
Steps 5 to 9 are done in post_upgrade_steps
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