Useful image properties in glance - img_signature* properties are not documented

[Matt Riedemann]

- [x] This is a doc addition request.

I was looking at this nova config option:

https://docs.openstack.org/nova/rocky/configuration/config.html#DEFAULT.non_inheritable_image_properties

And noticed that those img_signature* properties are not documented in the useful image properties docs.

I did find, however, that they are documented in the glance user docs:

https://docs.openstack.org/glance/latest/user/signature.html

So maybe we could simply add entries to the useful image properties table with descriptions and then link back to https://docs.openstack.org/glance/latest/user/signature.html for more details.

-----------------------------------
Release: on 2018-12-06 07:06
SHA: e7365a4474159383c28c385a5bc2908d36f52dbc
Source: https://git.openstack.org/cgit/openstack/glance/tree/doc/source/admin/useful-image-properties.rst
URL: https://docs.openstack.org/glance/latest/admin/useful-image-properties.html