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CUE is the most interesting language in this space right now https://cuelang.org/ https://cuelang.org/

by jamesrom 4y ago

vosper 4y ago
It’s a lot more complicated than YAML though. What’re the advantages? Who’s actually using it?
- mirekrusin 4y ago
  Terseness - you can describe exactly what you want without repetition at arbitrary cross-sections Intuitive behavior - unification by design is unordered (ie. it doesn't matter in which order input is processed, it'll produce the same result), you get what you see. Verification - ie. you can do one-liner policies easily to have some structure with desired types/values etc. It's just well designed (based on good theory), practical language for configuration. We use it in critical project to describe services on different envs, it works very well.
- mdaniel 4y ago
  The new docker-based CICD system uses cue: https://docs.dagger.io/1235/what#how-does-it-work https://docs.dagger.io/1235/what#how-does-it-work
- moderation 4y ago
  There are few things more complicated that YAML - https://www.arp242.net/yaml-config.html#its-pretty-complex https://www.arp242.net/yaml-config.html#its-pretty-complex > YAML may seem ‘simple’ and ‘obvious’ when glancing at a basic example, but turns out it’s not. The YAML spec is 23,449 words; for comparison, TOML is 3,339 words, JSON is 1,969 words, and XML is 20,603 words. Grafana Labs, Datadog's Vector, the Istio Service Mesh project, Dagger, sigstore, the SLSA framework all use CUE in some fashion. Dagger wrote a great blog post on CUE [0] 0. https://docs.dagger.io/1215/what-is-cue/ https://docs.dagger.io/1215/what-is-cue/
mirekrusin 4y ago
Exactly, it's kind of strange reading this type of blog posts months after months, this is solved problem and it's called cue.
- masklinn 4y ago
  Yes nothing says “baseline infrastructure” more than “you have to invoke a go binary to work with the thing”.
  - richardwhiuk 4y ago
    It's depressing how that's almost not sarcastic.
zamalek 4y ago
I was on the Dhall bandwagon up until Dagger made their announcement recently, Cue is definitely a nice configuration language. My main critique of it is that there's only one implementation.

CUE is the most interesting language in this space right now https://cuelang.org/ https://cuelang.org/

vosper 4y ago

It’s a lot more complicated than YAML though. What’re the advantages? Who’s actually using it?

mirekrusin 4y ago
Terseness - you can describe exactly what you want without repetition at arbitrary cross-sections Intuitive behavior - unification by design is unordered (ie. it doesn't matter in which order input is processed, it'll produce the same result), you get what you see. Verification - ie. you can do one-liner policies easily to have some structure with desired types/values etc. It's just well designed (based on good theory), practical language for configuration. We use it in critical project to describe services on different envs, it works very well.
mdaniel 4y ago
The new docker-based CICD system uses cue: https://docs.dagger.io/1235/what#how-does-it-work https://docs.dagger.io/1235/what#how-does-it-work
moderation 4y ago
There are few things more complicated that YAML - https://www.arp242.net/yaml-config.html#its-pretty-complex https://www.arp242.net/yaml-config.html#its-pretty-complex > YAML may seem ‘simple’ and ‘obvious’ when glancing at a basic example, but turns out it’s not. The YAML spec is 23,449 words; for comparison, TOML is 3,339 words, JSON is 1,969 words, and XML is 20,603 words. Grafana Labs, Datadog's Vector, the Istio Service Mesh project, Dagger, sigstore, the SLSA framework all use CUE in some fashion. Dagger wrote a great blog post on CUE [0] 0. https://docs.dagger.io/1215/what-is-cue/ https://docs.dagger.io/1215/what-is-cue/

mirekrusin 4y ago

Exactly, it's kind of strange reading this type of blog posts months after months, this is solved problem and it's called cue.

masklinn 4y ago
Yes nothing says “baseline infrastructure” more than “you have to invoke a go binary to work with the thing”.
- richardwhiuk 4y ago
  It's depressing how that's almost not sarcastic.

zamalek 4y ago

I was on the Dhall bandwagon up until Dagger made their announcement recently, Cue is definitely a nice configuration language. My main critique of it is that there's only one implementation.