octoDNS
dhall-lang
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octoDNS | dhall-lang | |
---|---|---|
13 | 113 | |
2,972 | 4,133 | |
1.7% | 0.6% | |
9.3 | 6.0 | |
11 days ago | about 2 months ago | |
Python | Dhall | |
MIT License | BSD 3-clause "New" or "Revised" License |
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octoDNS
- Show HN: WireHub – easily create and share WireGuard networks
- OctoDNS: Tools for managing DNS across multiple providers
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What is the best way to integrate the bind9 service on ci/cd?
Change to a supported provider for octoDNS. I've done some automating of bind files using Jinja2/Ansible, but I had to roll my own.
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Converting BIND DNS zones to HCL
I'd use OctoDNS with the ZoneFileSource to parse the zone files into the YAML files so I have structured data to work with, then I'd write a script to loop through each one and generate the above var.records data structure for each
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The Dhall Configuration Language
We use https://github.com/octodns/octodns for some of our DNS records. It's flexible, much faster than Terraform for thousands of records, and the maintainer Ross has been responsive on issues and pull requests. Also see Cloudflare's blog for how they use it
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Some of the popular DNS management services as a self hosted service
OctoDNS https://github.com/octodns/octodns
- DNSControl - the most underrated DNS tool
- AWS is down! Half of the internet is down!
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Akamai Edge DNS Down
Have them all hot and live rather than any sort of failover system. Keep everything in sync with OctoDNS or similar
https://github.com/octodns/octodns
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Sync Azure DNS zones with onpremise Windows DNS Server
Finally, you could explore the use of third-party sync tools - https://github.com/octodns/octodns might be a good choice.
dhall-lang
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Apple releases Pkl – onfiguration as code language
Fail to see how this is any different than Dhall (https://dhall-lang.org/) other than it produces plists too.
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Pkl, a Programming Language for Configuration
Kubernetes config is a decent example. I had ChatGPT generate a representative silly example -- the content doesn't matter so much as the structure:
https://gist.github.com/cstrahan/528b00cd5c3a22e3d8f057bb1a7...
Now consider 100s (if not 1000s) of such files.
I haven't given Pkl an in depth look yet, but I can say that the Industry Standard™ of "simple YAML" + string substitution (with delicate, error prone indentation -- since YAML is indentation sensitive) is easily beat by any of:
- https://jsonnet.org/
- https://nickel-lang.org/
- https://nixos.org/manual/nix/stable/language/index.html
- https://dhall-lang.org/
- (insert many more here, probably including Pkl)
- Why the fuck are we templating YAML? (2019)
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Is Htmx Just Another JavaScript Framework?
There are underpowered languages / tools, that can only solve a problem for which they are intended poorly. But not all limited tools are like that.
Say, eBPF is prominently not Turing-complete, which allows to guarantee that a eBPF program terminates, and even how soon. Still eBPF is hugely useful in its area.
Or, say, regular expressions are limited to regular languages; in particular, they famously [1] cannot process recursive structures, like trees. Still tools like grep / ag / rg are mightily useful.
Yes, I agree that YAML is underpowered for proper k8s configuration! But it's also too powerful for its own good in other aspects [2]. I wish Google used Dhall [3] or their own purely functional config language (FCL? I already forgot the name) instead of YAML; sadly, they did not.
[1]: https://stackoverflow.com/a/1732454/223424
[2]: https://ruudvanasseldonk.com/2023/01/11/the-yaml-document-fr...
[3]: https://dhall-lang.org/
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10 Ways for Kubernetes Declarative Configuration Management
Dhall: Dhall is a programmable configuration language that combines features like JSON, functions, types, and import capabilities. Its style leans towards functional programming, so if you're familiar with functional-style languages such as Haskell, you might find Dhall to be quite intuitive.
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Berry is a ultra-lightweight dynamically typed embedded scripting language
I've been thinking along these lines but more 'strongly validated' than statically typed in the sense that you'd be better off being able to load the entire config and then produce a list of problems (and should be able to offer good editor support if done correctly).
Though https://dhall-lang.org/ demonstrates that you can statically type quite a lot of configuration to great advantage, which appears to be programmatically embeddable in multiple languages per https://docs.dhall-lang.org/howtos/How-to-integrate-Dhall.ht...
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What Is the Point of Decidability
> Where practical is in the sense of an engineer (or in their terms, a CS practitioner),
Configuration processing. E.g. I'd like my yamls to be decidable, though I'd settle for guaranteed to halt[1].
[1] https://dhall-lang.org/
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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
- Show HN: FlakeHub – Discover and publish Nix flakes
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Home Blog Better configuration languages – A talk about Dhall [video]
And to checkout Dhall: https://dhall-lang.org/
What are some alternatives?
DnsControl - Infrastructure as code for DNS!
cue - CUE has moved to https://github.com/cue-lang/cue
DomainMOD - DomainMOD is an open source application written in PHP & MySQL used to manage your domains and other internet assets in a central location. DomainMOD also includes a Data Warehouse framework that allows you to import your web server data so that you can view, export, and report on your live data.
jsonnet - Jsonnet - The data templating language
lexicon - Manipulate DNS records on various DNS providers in a standardized way.
cue - The home of the CUE language! Validate and define text-based and dynamic configuration
Designate - OpenStack Technical Committee Decisions. Mirror of code maintained at opendev.org.
terraform - Terraform enables you to safely and predictably create, change, and improve infrastructure. It is a source-available tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.
dnstwist - Domain name permutation engine for detecting homograph phishing attacks, typo squatting, and brand impersonation
jsonlogic - Go Lang implementation of JsonLogic
desec-stack - Backbone of the deSEC.io Free Secure DNS Hosting Service
nix-gui - Use NixOS Without Coding