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Show HN: VectorNest responsive web-based SVG editor

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21•ekrsulov•1h ago•2 comments

Show HN: A Unix environment in a single HTML file (420 KB)

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4•sagebird•7m ago•1 comments

Show HN: CEL by Example

https://celbyexample.com/
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Open in hackernews

Show HN: CEL by Example

https://celbyexample.com/
28•bufbuild•2h ago

Comments

d4mi3n•1h ago
I've seen but haven't used CEL. Anybody with experience with competing tech have any strong opinions? I've used OPA, know CEL used by GCP and Kyverno, but otherwise haven't seen anything compelling enough to move away from the OPA ecosystem.
erdii•1h ago
The kubernetes apiserver allows using CEL in CustomResourceDefinition validation rules: - https://kubernetes.io/docs/reference/using-api/cel/ - https://kubernetes.io/docs/tasks/extend-kubernetes/custom-re...

It also allows using CEL in ValidatingAdmissionPolicies: - https://kubernetes.io/docs/reference/access-authn-authz/vali...

mtrimpe•1h ago
CEL is much more computationally limited as it aims to keep evaluations in the microsecond range.

With OPA you can easily create policies that take tens, hundreds or even thousands of millisecond.

That comes at the expense of a lot of power though, so much of the complex logic that you can write in OPA simply isn't achievable in CEL.

isacikgoz•1h ago
I think apples to apples comparison would be comparing against Rego. To me CEL is more appealing due to its simplicity.
hamandcheese•52m ago
Does CEL have any way to import other files? i.e. could it serve as a general purpose config language like jsonnet?