Open Stack

Hello!

In this letter I want to tell you the current status of Glare project and
discuss its future development within the entire OpenStack community.

In the beginning I have to say a few words about myself - my name is Mike
and I am the PTL of Glare. Currently I work as a consultant at Nokia, where
we're developing the service as a universal catalog of binary data. As I
understand it right, Nokia has big plans for this service, Moshe Elisha can
tell you more about them.

And here I want to ask the community - how exactly Glare may be useful in
OpenStack? Glare was developed as a repository for all possible data types,
and it has many possible applications. For example, it's a storage of vm
images for Nova. Currently Glance is used for this, but Glare has much more
features and this transition is easy to implement. Then it's a storage of
Tosca templates. We were discussing integration with Heat and storing
templates and environments in Glare, also it may be interesting for TripleO
project. Mistral will store its workflows in Glare, it has already been
decided. I'm not sure if Murano project is still alive, but they already
use Glare 0.1 from Glance repo and it will be removed soon (in Pike afaik),
so they have no other options except to start using Glare v1. Finally there
were rumors about storing torrent files from Ironic.

Now let me briefly describe Glare features:

 * Versioning of artifacts - each artifact has a version in SemVer format
and you can sort and filter by this field.
 * Multiblob support - there can be several files and folders per one
artifact.
 * The ease of creating new artifact types with oslo_versionedobjects
framework.
 * Fair immutability - no one can change artifact when it's active.
 * Multistore support - each artifact type data may be stored in different
storages: images may go to Swift; heat templates may be stored directly in
sql-database; for Docker Contatiners you can use Ceph, if you want.
 * Advanced sorting and filtering with various operators.
 * Uploaded data validation and conversion with hooks - for example, Glare
may check if uploaded file was a valid Tosca template and return Bad
Request if it's not.

If you're interested, I recorded several demos in asciinema, that describe
how Glare works and present the most useful features. Another demo about
uploading hooks will be recorded and published this week.

So, please tell me what you think and recommend in what direction we should
develop the project. Thanks in advance!

Best,
Mike

Useful links:
[1] Api documentation in rst format:
https://etherpad.openstack.org/p/glare-api
[2] Basic artifact workflow on devstack: https://asciinema.org/a/97985
[3] Listing of artifacts: https://asciinema.org/a/97986
[4] Creating your own artifact type with oslo_vo:
https://asciinema.org/a/97987
[5] Locations, Tags, Links and Folders in Glare:
https://asciinema.org/a/99771
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