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operating-kolla.rst 8.31 KiB

Operating Kolla

Versioning

Kolla uses the x.y.z semver nomenclature for naming versions. Kolla's initial Pike release was 5.0.0 and the initial Queens release is 6.0.0. The Kolla community commits to release z-stream updates every 45 days that resolve defects in the stable version in use and publish those images to the Docker Hub registry.

To prevent confusion, the Kolla community recommends using an alpha identifier x.y.z.a where a represents any customization done on the part of the operator. For example, if an operator intends to modify one of the Docker files or the repos from the originals and build custom images for the Pike version, the operator should start with version 5.0.0.0 and increase alpha for each release. Alpha tag usage is at discretion of the operator. The alpha identifier could be a number as recommended or a string of the operator's choosing.

To customize the version number uncomment openstack_release in globals.yml and specify the version number desired. If openstack_release is not specified, Kolla will deploy or upgrade using the version number information contained in the kolla-ansible package.

Upgrade procedure

Note

If you have set enable_cells to yes then you should read the upgrade notes in the :ref:`Nova cells guide<nova-cells-upgrade>`.

Kolla's strategy for upgrades is to never make a mess and to follow consistent patterns during deployment such that upgrades from one environment to the next are simple to automate.