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1. Stop all magnum-services by adding the following keys to node-specific hiera, and then make sure to run puppet on the magnum hosts:

   1. octavia::housekeeping::enabled: false

   2. octavia::health_manager::enabled: false

   3. octavia::api::enabled: false

   4. octavia::worker::enabled: false

2. Run puppet with the train modules/tags

3. Run apt-get dist-upgrade && apt-get autoremove

4. Run puppet

5. Run octavia-db-manage upgrade head


6. Re-start octavia services by removing the keys added in step 1 and re-run puppet.

7. Build a train-based octavia-image and upload to glance. Tag it and make octavia start to replace the amphora.

Horizon

1. Run puppet with the train modules/tags
2. run yum upgrade

3. Run puppet again
4. restart apache2

Compute-nodes

When all APIs etc. are upgraded, it is time to do the same on the compute-nodes. Compute nodes are simple to upgrade:

1. Run puppet with the train modules/tags
2. Run apt-get purge python-cinderclient && apt dist-upgrade && apt-get autoremove
3. Run puppet again
4. Restart openstack services and openvswitch-services

Finalizing

• Remove old neutron-agents

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