Comment 2 for bug 1526266

Specification is available at http://specs.openstack.org/openstack/ironic-specs/specs/approved/nodes-tagging.html.

Copying this from old BP (https://blueprints.launchpad.net/ironic/+spec/nodes-tagging):

Gerrit topic: https://review.openstack.org/#q,topic:nodes-tagging,n,z

Addressed by: https://review.openstack.org/183971
    Add nodes tagging support

Gerrit topic: https://review.openstack.org/#q,topic:bp/nodes-tagging,n,z

Addressed by: https://review.openstack.org/192576
    Add db migration script for creating tags table

Addressed by: https://review.openstack.org/232308
    Add db migration for tags table

Addressed by: https://review.openstack.org/232598
    Add db api layer for CRUD operations on node tags

Addressed by: https://review.openstack.org/233357
    Add Tag, TagList objects and a new tags field to Node

Addressed by: https://review.openstack.org/250478
    Added node tags in ironic-api

Addressed by: https://review.openstack.org/253065
    Joined 'tags' column while getting node