starlark
tanka
starlark | tanka | |
---|---|---|
22 | 25 | |
2,238 | 2,236 | |
1.9% | 2.1% | |
4.1 | 8.3 | |
3 days ago | 12 days ago | |
Starlark | Go | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
starlark
- (The) Starlark Language
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Apple releases Pkl – onfiguration as code language
The implementations and users page mentioned above:
https://github.com/bazelbuild/starlark/blob/master/users.md
- Language design of Starlark (compared to Python)
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10 Ways for Kubernetes Declarative Configuration Management
Starlark: Starlark is a language for describing build transformations, inspired by Python, but with features that make it suitable for embedding in software like Bazel. It can be used for configuration generation due to its capability for deterministic evaluation and expressing complex build transformations.
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How Big Should a Programming Language Be?
In the design of Starlark (https://github.com/bazelbuild/starlark), I often had to push back against new feature requests to keep the language simple. I explicitly listed simplicity as a design goal.i
Of course, the scope of the language is not the same as general purpose languages, but there's always pressure from the users to add more things. I also think many people underestimate the cost of adding new features: it's not just about adding the code in every compiler/interpreter, specifying every edge-case in a spec, updating all the tooling for the language and writing tutorials; it's also a cost on everyone who will have to read any of the code.
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Launch HN: Moonrepo (YC W23) – Open-source build system
one of the benefits of starlark (unlike python): "Starlark is suitable for use in highly parallel applications. An application may invoke the Starlark interpreter concurrently from many threads, without the possibility of a data race, because shared data structures become immutable due to freezing." from https://github.com/bazelbuild/starlark/blob/master/spec.md - it's not python, you can't do recursion (!) and it's more limited (you can't read a file in bazel, and parse it, you have to make this operation into the graph somehow)
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When to use Bazel?
You can do the same in Bazel which uses Starlark for its BUILD files. Starlark is a dialect of Python so it makes it super easy to work with.
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[P] Docker alternative for AI/ML
Make sense. We do not use Python actually, the build language is starlark, which is the config lang used by bazel. https://github.com/bazelbuild/starlark
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The Dhall Configuration Language
Have you seen Starlark? It's not too far from that, but safer in a number of ways: https://github.com/bazelbuild/starlark
- What change should Python 4 bring, in your opinion?
tanka
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Why the fuck are we templating YAML? (2019)
I would recommend implementing a similar API to Grafana Tanka: https://tanka.dev
When you "synthesise", the returned value should be an array or an object.
1. If it's an object, check if it has an `apiVersion` and `kind` key. If it does, yield that as a kubernetes object and do not recurse.
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What Is Wrong with TOML?
Maybe you'd like jsonnet: https://jsonnet.org/
I find it particularly useful for configurations that often have repeated boilerplate, like ansible playbooks or deploying a bunch of "similar-but" services to kubernetes (with https://tanka.dev).
Dhall is also quite interesting, with some tradeoffs: https://dhall-lang.org/
A few years ago I did a small comparison by re-implementing one of my simpler ansible playbooks: https://github.com/retzkek/ansible-dhall-jsonnet
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Show HN: Keep – GitHub Actions for your monitoring tools
- validation is often impractical (at least identifying exactly where the error is… I’m looking at you Helm!)
Unrelated to OP, but you can leverage Tanka to extend helm charts with functionality not provided by upstream.
https://tanka.dev/
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Alternatives to Helm?
Although jsonette might be considered more complex Tanka is a great alternative for k8s config management.
- Helm makes it overly complex, or is it just me?
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The YAML Document from Hell
At Grafana Labs we're using jsonnet at scale, while being a powerful functional language it is also excellent for rendering JSON/YAML config. We have developed Tanka[0] to work with Kubernetes, for other purposes I can recommend this course[1] (authored by me).
[0] https://tanka.dev/
[1] https://jsonnet-libs.github.io/jsonnet-training-course/
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Should i migrate from Kustomize to Helm?
If you're hitting the limits of Kustomize, maybe look at Tanka as well.
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Is it possible to wrap Kustomize yaml with jinja2?
Yes, try Tanka.
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Using Docker – Compose in Development and Production
yes. basically. and this is a path that multiple people are trying to solve. e.g. AWS CDK8s, https://tanka.dev/, etc
Compose would be awesome.
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Google Kubernetes clusters config checker tool
http://tanka.dev
(Note I work for Grafana Labs who fund Tanka and use it for all production config)
What are some alternatives?
yaml-reference-parser
helm-charts - Prometheus community Helm charts
dhall - Maintainable configuration files
kustomize - Customization of kubernetes YAML configurations
dhall-kubernetes - Typecheck, template and modularize your Kubernetes definitions with Dhall
kapitan - Generic templated configuration management for Kubernetes, Terraform and other things
starlark-go - Starlark in Go: the Starlark configuration language, implemented in Go
ytt - YAML templating tool that works on YAML structure instead of text
openapi-python-client - Generate modern Python clients from OpenAPI
kpt - Automate Kubernetes Configuration Editing
cdk8s - Define Kubernetes native apps and abstractions using object-oriented programming
Pulumi - Pulumi - Infrastructure as Code in any programming language. Build infrastructure intuitively on any cloud using familiar languages 🚀