How we rebuilt complex permissions without migrating to Zanzibar

Posted by FinnLobsien 2 days ago

Counter64Comment15OpenOriginal

Comments

Comment by jzelinskie 16 hours ago

I love reading posts like this because it shows that authorization isn't as niche as it once was. I also empathize with avoiding dependencies when you ship enterprise software for running on-prem; we abused Postgres a lot while serving enterprise customers for Quay before we founded AuthZed/SpiceDB. As an engineer it's your job to decide when is the right time to use a dedicated system or continue to invest in your own.

I can't help but see the similarities in their design to concepts from Zanzibar/SpiceDB, and that's great! It also means if they ever do encounter a situation where the existing system is no longer viable (engineers leave or a new design constraint requires rethinking), they _can_ migrate to a dedicated solution easily.

One trade-off I didn't see acknowledged in this post is the sacrifice in terms of tooling. Dedicated solutions have toolchains for debugging and proving correctness that you can integrate into CI/CD and homegrown solutions can't typically spare the time to also build themselves a nice toolchain.

Comment by arpinum 8 hours ago

They could have embedded Cedar into their system without adding on-premium burden.

Comment by Shadowmist 14 hours ago

Maybe they don’t like opt-out telemetry?

Comment by jzelinskie 11 hours ago

If you are seriously considering SpiceDB and our approach to telemetry bothers you, please do us a favor and open a GitHub issue (or find an existing one if someone beats you to it) and include your perspective. We want to be respectful while also maintaining a feedback loop to be able to improve what people use. We do a lot more than I've seen others do to communicate when/when/how/why we collect and how to re-configure (off or collect it yourself) so those who wish to opt-out can immediately. If this is not the right balance or our solution is just entirely wrong, it's important for us to understand why and improve rather than alienating folks.

Comment by noir_lord 5 hours ago

> We want to be respectful

Make telemetry strictly opt-in then, that's really the only respectful way to do it.

Everything else is sophistry.

Not singling you out either, too many projects do it by default, yours at least makes it obvious here that you do and how to turn it off https://authzed.com/docs/spicedb/ops/observability#telemetry so kudos for not hiding it in the basement behind a "Beware of the Leopard" sign.

For open source projects I just find it more offensive, I'd expect closed source projects to do it by default (but I expect less of them to start with) but for open source it rankles much more.

Comment by Shadowmist 3 hours ago

> respectful

With opt-in on an open-source project I get to choose to help contributing something back (telemetry data) to help the project.

Opt-out telemetry is not compatible with respect. It also adds an obstacle when I try to advocate the software to friends and coworkers. I have to warn them about it in advance, which is often where it ends because we’ve been burned in the past with other software adding extra things to their telemetry that weren’t there before, or changing the name of the environment variable that disables telemetry, or someone on the team does something that accidentally causes data to be transmitted unintentionally.

Comment by 0x696C6961 17 hours ago

The https://casl.js.org/v7/en/ link is dead

edit: fixed now

Comment by sandeepkd 12 hours ago

From what I have seen this subject needs a lot more attention than what it receives which translates in the reality that in almost majority of the places the access rules are pretty open from inside. This is one area where centralization (using some solution like AuthZed) and decentralization (skipping the checks based on business domain locally) present this healthy tension which requires some one who has expertise on the business domain to make it work efficiently

Comment by tyre 11 hours ago

I believe this is a problem that Oso[0] was solving, but sadly it seems they pivoted to AI.

[0]: https://www.osohq.com/

Comment by bbkane 15 hours ago

Maybe it's because I'm not an RBAC expert, but I had a hard time understanding the data model for folders. Are they a subject? And then there's a layered CASL where layers overwrite each other? And the user is an actor?

Comment by knob 17 hours ago

I thoroughly enjoyed this read. As it states at the beginning: rbac is necessary, yet not sexy. I don't use infiscal, yet this post was quite a good insight. Thanks for sharing it!

Comment by Synthetic7346 17 hours ago

I think this is true of security features, and even security teams in general. Only noticed in their absence

Comment by peterldowns 16 hours ago

But why not Zanzibar?

Comment by phoghed 16 hours ago

> That’s also because we didn’t migrate to a Zanzibar-style system like SpiceDB or OpenFGA. Adopting one would mean rewriting every permission check and asking every self-hosted customer to run another stateful service and introduce breaking changes.

Comment by 18 hours ago

Comment by citizenpaul 8 hours ago

>The best case is no complaints and that the system is correct. It can never excel. There's no 10x RBAC system people rave about on Twitter. Access controls are a box a product checks, but not a killer feature.

This reminded me of the tine i said something similar to teammate whom asked why our work always felt so bad. They Lost thier mind went off on some 20m rant and refused to talk to me for weeks and we were never on good terms again. I broke something in them i guess. They ultimately left thr tech industry.

It was the first of a number of incidents in my life that I learned that there really are a certian set of people that cannot be told the truth.

not really relevant but whatever it was a weird incident maybe that will entertain someobe

Comment by quietraster 8 hours ago

[dead]

Comment by warkdarrior 18 hours ago

[dead]