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Fuel nailgun extenstion for cluster upgrade
This extension for Nailgun provides API handlers and logic for cluster upgrading. This extension used by the fuel-octane project.
- After installing
nailgun_syncdb- migrate database
- restart nailgun service
Every transformation manager has default config that hardcoded, but
you can overwrite this config with your own transformations
extensions. This could be done by extending
CLUSTER_UPGRADE: transformations: cluster: 7.0: [transform_vips] 9.0: [first_transformation, second_transformation] ...
In extension you should define a entrypoint is such way:
nailgun.cluster_upgrade.transformations.cluster.7.0 = transform_vips = my_project.transformations:transform_cluster_vips
on first line we have entripoint name where
nailgun.cluster_upgrade.transformations- namespace where all transformations defined.
cluster- name of object which data transformed
7.0- cluster version where these transformations should happen
on the second line
transform_vips- unique transformation name that you can use in configuration file or in transformation manager
my_project.transformations- module name
transform_cluster_vips- transformer function name
Transformation function must take only one argument - data to
transform. When you call
data) all transformer functions ordered by a version called one by
one, and output of one transformer used as input to the other.
In out example calling
cluster_manager.apply('6.0', '9.1', data)
will call three functions