deb-sahara/doc/source/userdoc/registering_image.rst

Registering an Image

Sahara deploys cluster of machines based on images stored in Glance. Each plugin has its own requirements on image contents, see specific plugin documentation for details. A general requirement for an image is to have cloud-init package installed.

Sahara requires image to be registered in Sahara Image Registry order to work with it. A registered image must have two properties set:

• username - a name of the default cloud-init user.
• tags - certain tags mark image to be suitable for certain plugins.

Username depends on image used. Tags depend on the plugin used. You can find both in the respective plugin's documentation.