[nova] [placement] [ops] visualizing placement data as a graph

Hi,

Have you ever wondered how the placement resource provider tree looks like in your deployment or in your functional test? I did, so I put together a tool that can dump these trees as a dot file so it can be visualized as a graph.

The osc-placement-tree [1][2] works as an openstack CLI plugin and also gives adapters to dump the trees from nova and placement functional test envs.

Cheers, gibi

[1] https://pypi.org/project/osc-placement-tree [2] https://github.com/gibizer/osc-placement-tree