Create namespaces in runtime?

[asyncee]

Hello,

I have read in the documentation and saw in examples that namespaces should be prepared statically. Is that correct?

I have tried to create new relationship tuples for non-existing namespace and (obviously) got an error.

Should namespace creation / configuration be part of deploy procedure when new feature arrives given that this new feature introduces new namespace?

Are there are any ways to create namespace in runtime, without configuration file modification? Or maybe any plans on it? If not, please explain why is it a bad idea.

Thanks!

[vinckr]

It says in the docs:

Because namespaces each come with an individual configuration that can even modify some storage specific options, it is required to manually review and run migrations on namespace configuration updates.

.

Any plans on it?

Maybe @zepatrik can answer this part 🙂

[asyncee]

So the deploy of new feature in application is coupled to updating keto's configuration, it got it. Thanks!

[zepatrik]

With the new structure namespaces are hot-reloaded like any other config value, so you can easily change them during runtime. OPL defined namespaces as well.

Re-posting for visibility.

[zepatrik]

We are currently evaluating whether we want to keep the current, table separated approach or distinguish namespaces by column. With the current approach, you can still add new namespaces with zero downtime, because the config files are hot-reloaded and migrations can be applied to a new namespace during operation (might slow down the database, but I have not tried it). I recommend you try it with a non-production environment beforehand. For sqlite in-memory there is an issue already to apply migrations on namespace config changes: #446

[asyncee]

It looks to me that table separated approach is more scaleable. Thanks for explanation!

[RupeshKashyap1]

Is there any updates on it?
I think now namespaces don't affect the storage of tuples. I am trying to achieve something similar.

[zepatrik]

With the new structure namespaces are hot-reloaded like any other config value, so you can easily change them during runtime. OPL defined namespaces as well.