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Yoke: Infrastructure as code, but actually
- lorenzotenti 2y agoIs this a yoke? _sorry_
- imp0cat 2y agoLol! There are some parts that read like one: "... write your infrastructure definitions in Go or Rust, compile it to WebAssembly, and then you take input and output Kubernetes manifests that get applied to the cluster."
- kacesensitive 2y agoIf you really do think that Terraform is code, then go try and make multiple DNS records for each random instance ID based on a dynamic number of instances. Correct me if I'm wrong, but I don't think you can do that in Terraform. Great take.
- taberiand 2y agoExcept it's not, because their example is trivially easy and common in Terraform.
- kacesensitive 2y agoThe challenge isn't just defining multiple DNS records—it’s doing so dynamically based on an unknown number of instances at plan time. Terraform struggles with truly dynamic resource creation because it relies on a static graph. You can use count or for_each, but those require knowing the instances in advance within the Terraform configuration. If your instances are created dynamically outside Terraform (e.g., via auto-scaling groups), you hit limitations. You can work around this by using external data sources or separate workflows (e.g., running Terraform after instances are created), but that just proves the point: Terraform isn’t fully "code" in the sense of having true loops and dynamic logic like a real programming language. If you think this is trivially easy, show me how you'd do it without resorting to hacks like running terraform apply twice.
- taberiand 2y agoYou can't do it if you have the instances created with auto-scaling groups of course. But nobody would think you could, that's runtime not infra. With Terraform you are supposed to have multiple coupled state files, with a tree structure of references, so that eg the state file containing the DNS can reference the previously applied state file that created the instances You are supposed to run terraform apply in a sequence that respects the dependency graph. Terragrunt makes this trivial.
- kacesensitive 2y agoAt that point, you’re conceding the exact limitation I was pointing out. Terraform can't handle truly dynamic infrastructure changes within a single plan because its execution model is declarative, not imperative. Saying "nobody would think you could" just acknowledges that Terraform lacks the flexibility of real code—because if it were actual code, you'd be able to handle this inline rather than orchestrating multiple runs with external tools. Yes, you can manage this with separate state files and a structured apply sequence (e.g., using Terragrunt), but that’s just adding more scaffolding to work around Terraform’s inability to express dynamic logic. That’s infrastructure orchestration, not infrastructure as code. The fact that we have to rely on external tools or multi-step workflows to accomplish something that would be trivial in a real programming language just reinforces the point: Terraform isn’t really "code" in the traditional sense.
- taberiand 2y agoThe point is terraform can do it, and it does it well. Just because you don't want to use Terraform properly doesn't mean it's bad at what it does. Using "a real programming language" to do the infra still has to solve the same issues faced by terraform. Using a programming language to define infra doesn't solve the auto scaling DNS issue, for example, you'll be using lambdas to create the dns either way. It also doesn't inherently solve coordination of the resource deployment, you still need to organise your code into modules and ensure the order of execution. If you think Terraform is the problem here you're blaming the tool for a failure of process and understanding
- beacon294 2y ago> If you really do think that Terraform is code, then go try and make multiple DNS records for each random instance ID based on a dynamic number of instances. Correct me if I'm wrong, but I don't think you can do that in Terraform. It's possible a few ways. I prefer modules, and this LLM answer describes an older way with count and for_each. It's always possible that incantation of the problem space has a gotcha that needs a work around, but I doubt it would be a blocker. https://www.perplexity.ai/search/if-you-really-do-think-that-te-diI06HNmR5aCWaepjA0Msw https://www.perplexity.ai/search/if-you-really-do-think-that...
- voidfunc 2y agoI ditched Terraform years ago and just interact with the raw cloud provider SDKs now. It's much easier to long-term evolve actual code and deal with weird edgecases that come up when you're not in beholden to the straight jacket that is configuration masquerading as code. Oh yea, and we can write tests for all that provisioning logic too.
- plmpsu 2y agoHow are you handling creating multiple resources in parallel? or rolling back changes after an unsuccessful run?
- gorgoiler 2y agoNot OP, but for rolling back we just… revert the change to the setup_k8s_stuff.py script ! In practice it’s a module that integrates with quite a large number of things in the monolith because that’s one of the advantages of Infrastructure as Actual Code: symbols and enums and functions that have meaningful semantics in your business logic are frequently useful in your infrastructure logic too. The Apples API runs on the Apples tier, the Oranges API runs on the Oranges tier, etc. etc. People call me old fashioned (“it’s not the 1990s any more”) but when I deploy something it’s a brand new set of instances to which traffic gets migrated. We don’t modify in place with anything clever and I imagine reverting changes in a mutable environment is indeed quite hard to get right (and what you are hinting at?)
- solatic 2y ago> I imagine reverting changes in a mutable environment is indeed quite hard to get right (and what you are hinting at?) I guess you're not managing any databases then? Because you can't just treat those immutably, you have to manage the database in-place.
- jiggawatts 2y agoOne thing that annoys me is the inconsistency between mutable "data" resources and everything else. Something that would be nice would be the rough equivalent of the deployment slots used in Azure App Service, but for everything else too. So you could provision a "whole new resource" and then atomically switch traffic over to it.
- bbu 2y agoLooks promising but it starts with a (justified) rant about terraform and then goes into how to replace Helm. I am confused. Can yoke be used to create and manage infrastructure or just k8s resources?
- xena 2y agoAuthor here. It's mainly for k8s resources; but if you install operators like external-dns or something like crossplane into your cluster, you can manage infra too.
- groestl 2y ago> into your cluster I guess the point is: what if you don't have a cluster.
- darkwater 2y agoAnd also: what manages the Kubernetes cluster lifecycle in the cloud provider, or on bare metal? There is life before (and beyond) Kubernetes.
- bbu 2y agook, that makes sense. A better Helm would be nice. timoni.sh is getting better and better, but Cue is a big hurdle. Unfortunately, I'm not a big fan of the yaml-hell that crossplane is either. But as a Terraform replacement systeminit.com is still the strongest looking contender.
- jonasdegendt 2y ago> A better Helm would be nice. Consider CDK8s (Typescript or Go) or Jsonnet. We evaluated Cue and the two aforementioned options and ended up with CDK8s using Typescript and it's incredibly powerful.
- e12e 2y ago
- sepositus 2y agoFrom the website: > New tools like CUE, jsonnette, PKL, and others have emerged to address some of the short comings of raw YAML configuration and templating. Inspiring new K8s package managers such as timoni. However it is yoke’s stance that these tools will always fall short of the safety, flexibility and power of building your packages from code. The never-ending debate continues between configuration languages and traditional languages. I don't know if the industry will ever standardize in this area.
- Kinrany 2y agoIt will once traditional languages are good enough
- bbkane 2y agoI disagree - I think there are fundamental tradeoffs between declarative and imperative ways of configuration so they'll never "converge" completely. I am a huge fan of each camp stealing ideas from the other and thus "converging" closer. I also like the two-step "write imperative code to generate declarative config" approach some systems take - Terraform/Pilumi do this. At the cost of having two steps, you get to write your for loops AND get a declarative "state" you can diff easily with the previous state.
- Kinrany 2y agoConfiguration languages are just structured data, and programming languages also need to be able to express complex literal data. JSON is already explicitly designed as a ~subset of JavaScript. An equivalent of a JSON written as a JavaScript literal is easier to read than JSON. The only problem is that we often don't want to use an interpreter to parse data.
- fire_lake 2y agoTraditional languages will not remove the features that make them poor for configuration. I can’t imagine Python dropping the ability to query the current date, for example.
- skinkestek 2y ago>> Wait, there's something here that I'm not getting. Why are you compiling the code to WebAssembly instead of just running it directly on the server? > Well, everything's a tradeoff. Let's imagine a world where you run the code on the server directly. > If you're using a language like Python, you need to have the Python runtime and any dependencies installed. This means you have to incur the famous wrath of pip (pip hell is a real place and you will go there without notice). If you're using a language like Go, you need to have either the Go compiler toolchain installed or prebuild binaries for every permutation of CPU architecture and OS that you want to run your infrastructure on. This doesn't scale well. > One of the main advantages of using WebAssembly here is that you can compile your code once and then run it anywhere that has a WebAssembly runtime, such as with the yoke CLI or with Air Traffic Controller. At this point, why not use a proper runtime like JVM or .Net? Then one can also easily use reasonable languages like C#, Java or Kotlin as well.
- LoganDark 2y ago> At this point, why not use a proper runtime like JVM or .Net? Because then you are forced to only use managed languages?
- skinkestek 2y agoAhh, good point. I guess Rust (and maybe other unmanaged languages) can be compiled to WebAssembly?
- xena 2y agoYes: Go: https://go.dev/blog/wasi https://go.dev/blog/wasi Rust: https://github.com/bytecodealliance/wasmtime/blob/main/docs/WASI-tutorial.md https://github.com/bytecodealliance/wasmtime/blob/main/docs/...
- politelemon 2y ago.net: https://devblogs.microsoft.com/dotnet/extending-web-assembly-to-the-cloud/ https://devblogs.microsoft.com/dotnet/extending-web-assembly...
- iliec 2y agoThis seems like a great approach that sits between using the sdk directly and a dsl/yaml. My experience has been that most of the people configuring these systems don’t know how to code, and configuration languages is their gateway. Most never venture past configuration which is why yaml is so used and difficult to get any traction outside of it. I think terraform adopted some of the patterns which have been around since a long time ( remember the chef va puppet discussion from a decade ago) and it massively helped with adoption. Cue seems a step up from terraform ( you can use cue vet for type checking, even if CRDs are not yet supported all the way) but tracking seems to be low as it’s hard for non-programmers to grasp. Maybe Claude will help to move all people that don’t want to manage these systems with code to something even more simpler than yaml and open the door for real infra as code for the rest.
- iliec 2y ago> traction seems to be low when referring to cue. Autocorect issue
- solatic 2y ago> My experience has been that most of the people configuring these systems don’t know how to code, and configuration languages is their gateway I don't really disagree but this is such a pessimistic, NIH-syndrome viewpoint. Feel free to look at the code for any of the major Terraform providers. There's a lot of production-hardened, battle-tested Go code that's dealing with the idiosyncrasies of the different cloud APIs. They are an incredibly deep abstraction. Terraform also implicitly builds a DAG to run operations in the right order. Comparing writing HCL to writing straight Go code with the AWS SDK, the HCL code has something like an order of magnitude fewer lines of code. It absolutely makes sense to use Terraform / HCL instead of writing straight Go code.
- sepositus 2y agoYeah, don’t really understand the sentiment here. I’ve been programming for 20 years and actively use Terraform and CUE at work. I actually write a lot of Go code for our platform, but I’ve never once thought it’d be a good idea to just start calling APIs directly.
- solatic 2y ago> If you really do think that Terraform is code, then go try and make multiple DNS records for each random instance ID based on a dynamic number of instances. Correct me if I'm wrong, but I don't think you can do that in Terraform. It depends on where the source of dynamism is coming from, but yes you can do this in Terraform. You get the instances with data.aws_instances, feed it into aws_route53_record with a for_each, and you're done. Maybe you need to play around with putting them into different modules because of issues with dynamic state identifiers, but it's not remotely the most complicated Terraform I've come across. That's a separate question from whether or not it's a good idea. Terraform is a one-shot CLI tool, not a daemon, and it doesn't provide auto-reconciliation on its own (albeit there are daemons like Terraform Enterprise / TerraKube that will run Terraform on a schedule for you and thus provide auto-reconciliation). Stuff like DNS records for Kubernetes ingress is much better handled by external-dns, which itself is statically present in a Kubernetes cluster and therefore might be more properly installed with Terraform.
- klooney 2y agohttps://registry.terraform.io/providers/hashicorp/random/latest/docs https://registry.terraform.io/providers/hashicorp/random/lat... is also very useful for this sort of thing, in case you want a persistent random value per resource- shuffle, id, pet, and password are all super handy.
- ljm 2y agoK8S is at a point now where I'd probably try to configure whatever I can inside the cluster as an operator or controller. There are going to be situations where that isn't practical, but the ability to describe all the pieces of your infra as a CRD is quite nice and it takes some pain out of having things split between terraform/pulumi/cdk and yaml. At that point, you're just running your own little cloud instead of piggybacking on someone else's. Just need a dry-run pipeline so you can review changes before applying them to the cluster.
- solatic 2y agoSure, but the Kubernetes cluster itself, plus its foundational extra controllers (e.g. FluxCD) are basically static and therefore should be configured in Terraform.
- WatchDog 2y agoI'm quite happy with CDK[0]. My experience is only with the main AWS cloudformation based version of CDK, although there is also CDK for terraform, which supports any resource that terraform supports, although some of what I'm about to say is not applicable to that version. What I like about CDK, is that you can write real code, and it supports a wide range of languages, although typescript is the best experience. Provided that you don't use any of the `fromLookup` type functions, you can run and test the code without needing any actual credentials to your cloud provider. CDK essentially complies your code into a cloudformation template, you can run the build without credentials, then deploy the built cloudformation template separately. You don't need to worry about your terraform server crashing half way though a deployment, because cloudformation runs the actual deployment. [0]: https://github.com/aws/aws-cdk https://github.com/aws/aws-cdk
- cedws 2y agoIn your experience how often have you had template builds succeed but then fail at apply time? This kind of issue is what I find most frustrating about IaC today, your 'code' 'compiling' means nothing because all of the validations are serverside, and sometimes you won't find out something's wrong until Terraform is already half done applying. I want to be able to declare my infrastructure, be able to fully validate it offline, and have it work first try when I apply it.
- WatchDog 2y agoI've had less such issues with CDK, versus raw cloudformation, or terraform, but it can still happen.
- Aeolun 2y agoI find Pulumi very nice here because it persists state after every successful resource creation. If it breaks somewhere in the middle, the next run will just pick up where it left off last time. CDK… well, CDK doesn’t get in an invalid state often either, but that’s because it spends 30m rolling back every time something goes wrong.
- chuckadams 2y ago
- danw1979 2y ago> If you really do think that Terraform is code, then go try and make multiple DNS records for each random instance ID based on a dynamic number of instances. Correct me if I'm wrong, but I don't think you can do that in Terraform. You’re wrong. You can do that with Terraform. You can also provision stuff that isn’t just k8s.
- solatic 2y ago> If you're using a language like Go, you need to have either the Go compiler toolchain installed or prebuild binaries for every permutation of CPU architecture and OS that you want to run your infrastructure on. This doesn't scale well. This is exactly the approach that Terraform takes. Both Terraform and its providers are written in Go, which is a great language for this purpose because of GoReleaser and the ease of compiling to different architectures and OSes. It scales just fine. Did the author talk to any senior Terraform practicioners before building this?
- davidmdm91 2y agoHi. I think the article was just showing the example that IaC tools use configuration languages instead of code. Yoke is not a terraform replacement, and does not mention terraform anywhere its documentation. It does sit at the same level as helm & timoni. It just takes a code-based approach to managing your cluster (which in turn can manage your infra but that wasn't the larger point).
- anonfordays 2y ago>Did the author talk to any senior Terraform practicioners before building this? They clearly did not. Their example of something that's supposedly not possible in Terraform: "If you really do think that Terraform is code, then go try and make multiple DNS records for each random instance ID based on a dynamic number of instances. Correct me if I'm wrong, but I don't think you can do that in Terraform." Is something a junior infrastructure engineer can do in about a dozen lines of Terraform code: https://www.perplexity.ai/search/if-you-really-do-think-that-te-diI06HNmR5aCWaepjA0Msw https://www.perplexity.ai/search/if-you-really-do-think-that... (Taken from another comment here) If they would have asked anyone that uses Terraform, they would not have written that.
- smithcoin 2y agoSpeaking of IAC- I have an existing GCP project with some basic infra (service accounts, cloud run jobs, cloud build scripts, and databases) what is the best tool to _import_ all of this into IAC. The only real tool I’ve found is terraformer. I have no dog in the race regarding tooling e.g if my output is Pulumi, terraform, or just straight YAML. I’m just looking to “codify” it. Any suggestions from experience?
- danw1979 2y agoJust go with plain Terraform. You can check the docs for the GCP provider to see if the resources you want to manage are "importable" into the Terraform state file; they usually are and you'll see a section at the bottom of each resources documentation page showing you how to do this. e.g. https://registry.terraform.io/providers/hashicorp/google/latest/docs/resources/google_service_account#import https://registry.terraform.io/providers/hashicorp/google/lat... Your process will be - 1. Write TF configuration approximating what you think is deployed 2. Import all your resources into the state file 3. Run a `terraform plan ...` to show what Terraform wants to change about your resources (including creating any you missed or changing/recreating any your config doesn't match) 4. Correct your TF configuration to reflect the differences from 3. 5. Goto 3, repeat until you get a "No changes" plan or the you actually want TF to correct some things (add tags, for example) 6. run `terraform apply` and optionally... 7. set up your CI/automation to run `terraform plan` regularly and report the "drift" via some means - stuff that has been changed about your resources outside of Terraform management. I put a lot of stock in this last step, because small, incremental change is the cornerstone of platform management. If you want to make a change and come to find there's a huge amount of other stuff you have to correct as well, your change isn't small any more.
- taberiand 2y agoYou don't need to write all the tf upfront for existing resources. Use `import` resources in a .tf file (I like to just call it imports.tf) and run `terraform plan -generate-config-out=imported.tf` That will dump the tf resources - often requires a little adjustment to the generated script, but it's a huge time saver
- danw1979 2y agoI think a majority of the rants about Terraform I read are written from the perspective of someone managing inherently ephemeral infrastructure - things that are easily disposed of and reprovisioned quickly. The author of such a critique is likely managing an application stack on top of an account that someone else has provided them, a platform team maybe. CDK probably works for you in this case. Now, if you belong to that platform team and have to manage the state of tens of thousands of "pet" resources that you can't just nuke and recreate using the CDK (because some other team depends on their avaiability) then Terraform is the best thing since sliced bread; it manages state, drift, and the declarative nature of the DSL is desirable. Horses for courses.
- bayindirh 2y ago> Horses for courses. I think with YMMV, these are the two most important things we need to keep in our mind. With plethora of technologies and similar tools, we generally read the tin superficially but not the manual, and we declare "This is bollocks!". Every tool is targeted towards a specific use and thrive in specific scenarios. Calling a tool bad for something not designed for is akin to getting angry to your mug because it doesn't work as well when upside down [0]. [0]: https://i.redd.it/mcfym6oqx5p11.jpg https://i.redd.it/mcfym6oqx5p11.jpg
- robertlagrant 2y agoFor me Terraform's biggest strength is also its biggest source of pain: it can integrate all sorts of technologies under one relatively vendor-agnostic umbrella and enforce a standard workflow across a huge amount of change. However, that means any bug in any provider is sort of Terraform's fault, if only in the developer's mind.
- gregmac 2y agoHaving debugged this sort of thing before, it's actually really hard to figure that out. The entire stack is kind of bad at both logging and having understandable error messages. You get things like this: ╷ │ Error: googleapi: Error 400: The request has errors, badRequest │ │ with google_cloudfunctions_function.function, │ on main.tf line 46, in resource "google_cloudfunctions_function" "function": │ 46: resource "google_cloudfunctions_function" "function" ¨ Is this a problem with the actual terraform or passing a variable in or something? Is it a problem with the googleapi provider? Is it a problem with the API? Or did I, as the writer of this, simply forget a field? In complex setups, this will be deep inside a module inside a module, and as the developer who did not use any google_cloudfunctions_function directly, you're left wondering what the heck is going on.
- thayne 2y ago> This is not code. This is configuration. I don't think those two things are mutually exclusive. IMO hcl is absolutely code. As is html, and css, json, and yaml. It isn't a full programming language, and I often wish it was, but I wouldn't say it isn't code.
- voidnap 2y agoJSON YAML are file formats for data. Is XML code? Is SVG code? Is a GIF code? Is a BMP code?
- otabdeveloper4 2y agoNo, Nix is "infrastructure as code, but actually". The downside is that now you have to code in Nix.
- grahar64 2y agoI was 100% for infra as code as it gives devs more freedom to get what they need. Then the startup went from 50 to 100 to 1000 and people just needed to get stuff done and usually the exact same thing over and over. So we migrated to a custom DSL which is much easier to standardize, lint, review and read. I think when you don't know what you need code is better for flexibility, when the domain is sorted, DSL.
- chubot 2y agoThis is not code. This is configuration. FWIW we've been working on letting you declare data in YSH, a new Unix shell. So you can arbitrarily interleave code and data, with the same syntax. The config dialect is called "Hay" - Hay Ain't YAML. Here's a demo based on this example: https://github.com/oils-for-unix/blog-code/blob/main/hay/iac-demo.ysh https://github.com/oils-for-unix/blog-code/blob/main/hay/iac... It looks almost the same as HCL (although I think this was convergent evolution, since I've actually never used Terraform): # this is YSH code! echo 'hello world' Data aws_route53_zone cetacean_club { name = 'cetacean.club.' } Resource aws_route53_record A { zone_id = data.aws_route53_zone.cetacean_club.zone_id name = "ingressd.$[data.aws_route53_zone.cetacean_club.name]" type = 'A' ttl = "300" } And then the stdout of this config "program" is here - https://github.com/oils-for-unix/blog-code/blob/main/hay/output.txt https://github.com/oils-for-unix/blog-code/blob/main/hay/out... It can be serialized to JSON, or post-processed and then serialized --- Then I show you can wrap Resource in a for loop, as well as parameterize it with a "proc" (procedure). make-resource (12) make-resource (34) if (true) { make-resource (500) } This is all still in progress, and can use feedback, e.g. on Github. (This demo runs, but it relies on a recent bug fix.) The idea is not really to make something like Terraform, but rather to make a language with metaprogramming powerful enough to make your own "dialects", like Terraform. --- I wrote a doc about Hay almost 3 years ago - Hay - Custom Languages for Unix Systems - https://oils.pub/release/0.27.0/doc/hay.html https://oils.pub/release/0.27.0/doc/hay.html Comments - https://lobste.rs/s/phqsxk/hay_ain_t_yaml_custom_languages_for_unix https://lobste.rs/s/phqsxk/hay_ain_t_yaml_custom_languages_f... At that time, Oils was a slow Python prototype, but now it's fast C++! So it's getting there The idea of Oils is shell+Python+JSON+YAML, squished together in the same language. So this works by reflection and function calls, not generating text ("Unix sludge"). No Go templates generating YAML, etc.
- esafak 2y agoWhere is YSH? Is it built into the oil shell? The YSH link in https://www.oilshell.org/cross-ref.html#YSH https://www.oilshell.org/cross-ref.html#YSH is broken.
- 2y ago
- nikolay 2y agoExcept that this is not really infrastructure code; it's Kubernetes code. Infrastructure is what runs your Kubernetes clusters!
- deleted 2y ago[deleted]
- __turbobrew__ 2y ago> This is not code. This is configuration. It is all configuration (data) my friend. At the end of the day the internet and the services which connect it are all based off hard codes somewhere. How do you think Google enumerates all their datacenters? You bet ya there is a magic config file you have to update to add new datacenters and from there the automation kicks off the infrastructure based upon the contents of the config file, the configuration is still there.
- habitue 2y agoPeople are on here arguing that terraform is code, actually. Sure it is, but it's not a good general purpose programming language. It is a config language that grew some features from general purpose languages. It's clearly more pleasant to write that config in a real language
- akdor1154 2y agoHill I will die on: Terraform being less expressive than a real language is a feature, not a drawback. CDK/Pulumi/Yoke is optimised for being easy to write, but code should be optimised to be easy to READ. Sure, cdk/pulumi/yoke lets you write the most clever and succinct construction you can compose in your favourite language.. however, whoever comes across your clever code next will probably want to hit you, especially if it's not a dev from your immediate team, and especially if you have succumbed to blurring the lines between your idk code and your app code. If they instead come across some bog-standard terraform that maybe has a bunch of copy-paste and is a bit more verbose... Who cares? Its function will be obvious, there is no mental overhead needed. On the flipside Helm templating is an absolute abomination and i would probably take anything over needing to immerse myself in that filth, maybe Yoke is worth a look after all. But the REAL answer is a real config language, still.
- liampulles 2y agoAs the Go proverb goes: "clear is better than clever". https://go-proverbs.github.io/ https://go-proverbs.github.io/
- Aeolun 2y ago> code should be optimised to be easy to READ You say that as if it’s impossible to write clear code. As soon as you have any form of multiple resources (e.g. create x of y) I’ll take the real programming language over terraform.
- dijksterhuis 2y ago> As soon as you have any form of multiple resources terraform handles this with for_each. need 10 EBS volumes on 10 EC2 instances? for_each and link instance id of the each value. done. theres a bunch of stuff i now don’t have to worry about (does the instance actually exist yet? other validation edge cases?) https://developer.hashicorp.com/terraform/language/meta-arguments/for_each https://developer.hashicorp.com/terraform/language/meta-argu... > You say that as if it’s impossible to write clear code. not the parent, but i feel their usage of the word “code” was in error. i don’t care about how, i care about what. the HCL is purely a defintion/description of what the infrastructure looks like. what resources will be created? that is all it is. i want that. to define the infra and move on. i don’t want low level control of every minutia to do with infrastructure. i want to read a config file and just know what resources will exist in the account. wanna know every resource that exists? `terraform state list` … job done. no reading code required. HCL/terraform is to define my cloud resources, not to control them or their creation. if i want control, then i need to whip out some go/python. that’s my vibe on CDK libraries/platform APIs versus terraform.
- liampulles 2y agoIn a previous project, I decided to write a Go program to template k8s YAML from "higher level" definitions of resources. It worked, but the mapping code ended up being more complex than I would have liked, and I think it was ultimately difficult to maintain. Lesson for me was to think about infrastructure in terms of infrastructure, i.e. treat it as its own domain.
- supriyo-biswas 2y agoI feel that writing out infrastructure templates through a "proper programming language" (for the lack of a better term) comes with some sharp tradeoffs that many don't recognize. A big feature of most IaC tools is that they are relatively logic-less and therefore can be easily understood at a glance, allowing for easier reasoning about what resources can be created, and this ability is diminished by introducing logic, and debugging issues in them becomes a nightmare. A large company I used to work for had a system just like that, and while I thankfully never had to work with said system, hearing statements like you can "debug your templates with pry[1]" being touted as a feature is something I hope to never hear again. [1] https://github.com/pry/pry https://github.com/pry/pry
- nickmonad 2y agoYeah, I've always felt like defining infrastructure in a full-on language fell nicely into that category of "just because you can doesn't mean you should." I've only recently started to see this play out with a sufficiently large infrastructure setup and nothing is more infuriating than having to keep multiple layers of logic in your head when you're trying to figure out why some value got set on a task definition.
- Aeolun 2y agoWhy is someone talking about infrastructure as code one moment, and then kubernetes manifests the next. The two are not the same. You can’t replace what Terraform or Pulumi does with kubernetes manifests.
- empath75 2y agoYou absolutely can. https://www.crossplane.io/ https://www.crossplane.io/ I'm managing a few dozen cloud accounts on azure and aws with nothing but crossplane and a very small terraform script that bootstraps the control plane account.
- Aeolun 2y agoOk, maybe you can, but I don’t think you should xD It feels a bit like that MS Paint IDE that was posted a day ago.
- chuckadams 2y agoIaC doesn't mean your infrastructure config has to be code, it means you manage your infrastructure config like code. As in version control, PRs, tests, that sort of thing. How much of it is Turing complete is up to you.
- daralthus 2y agoor you could just compile pulumi js to webassembly?
- INTPenis 2y agoWho are these ops people that want to write golang and rust? It seems like a tiny niche. If you're that comfortable writing golang or rust then why not just become a developer? I'm a lifelong ops person, since 2000, and I use Ansible or Terraform daily. I often wanted to learn golang better but I just never had the motivation. I'm a mean Python scripter, I can write a system integration in hours, but there's something about compiled languages I just never could get into. I'm saying this only because the whole point of yoke is to define your infrastructure in Golang so that you can add in the missing pieces with Golang. So that you're free to use Golang for anything other than the pre-defined infrastructure providers in Yoke, so you're now a Golang developer. Congrats.
- postpawl 2y agoA lot of important devops tools like Kubernetes and Grafana are written in golang, and it’s often handy to be able to import their code to use in your own code to automate those things.
- INTPenis 2y agoBut again, you're now a developer. And I'm asking who are these developers using IaC tooling? It seems to me like it was made for ops. All power to you if you take on both roles, but that's a good way to get burned out. I'm a devops person so the devs can focus on just code, and I can focus on making the best and safest infrastructure for them to run their code in.
- postpawl 2y agoThose developers are working on “Internal Development Platforms” and building their own abstractions on top of tools like Kubernetes and Grafana to simplify things for developers. This page explains it pretty well: https://internaldeveloperplatform.org/what-is-an-internal-developer-platform/ https://internaldeveloperplatform.org/what-is-an-internal-de...
- terrabitz 2y agoI feel like the distinction between the two is fairly contrived these days. I'm an SRE, and we're constantly building tooling to help us better manage infrastructure, improve reliability, improve DX, etc. On the flip side, we also push a lot of the responsibility for infrastructure management to our devs: we maintain the modules and IaC pipelines, and the developers hook up the building blocks they need. It can actually help avoid burnout because our team doesn't become a bottleneck for infrastructure provisioning. Say what you want about IaC in Go or other programming languages, but it can definitely help strengthen the whole "developers own their infrastructure" since they don't have to learn an additional language syntax.
- marcinzm 2y agoThis feels like a Helm replacement and not a Terraform replacement in any real way. Which is fine but confusing when the post begins with Terraform. Terraform can create an K8S cluster. This requires an K8S cluster to work. Etc.
- abound 2y agoI think I've commented this elsewhere, but using Cue [1] is also great for this purpose, with no extra infrastructure. E.g. you define a Cue Template [2], which seems analogous to Yoke/ATC's CRDs, and then your definitions just include the data. Here's an example of Vaultwarden running on my K8s cluster: deployment: bitwarden: { spec: { template: { spec: { containers: [{ image: "vaultwarden/server:1.32.7" env: [{ name: "ROCKET_PORT" value: "8080" }, { name: "ADMIN_TOKEN" valueFrom: secretKeyRef: { name: "bitwarden-secrets" key: "ADMIN_TOKEN" } }] volumeMounts: [{ name: "data" mountPath: "/data" subPath: "bitwarden" }] ports: [{ containerPort: 8080 name: "web" }] }] volumes: [{ name: "data" persistentVolumeClaim: claimName: "local-pvc" }] } } } } And simpler services are, well, even simpler: deployment: myapp: spec: template: spec: containers: [{ ports: [{ containerPort: 8080 name: "web" }] }] And with Cue, you get strongly typed values for everything, and can add tighter constraints as well. This expands to the relevant YAML resources (Services, Deployments, etc), which then get applied to the cluster. The nice thing of this approach is that the cluster doesn't need to know anything about how you manage your resources. [1] https://cuelang.org/ https://cuelang.org/ [2] https://cuelang.org/docs/tour/types/templates/ https://cuelang.org/docs/tour/types/templates/
- Cyphus 2y agoI really want to dive in with Cue, but one thing that I got burned on when using jsonnet to generate CloudFormation templates years ago was lack of discoverability for newcomers to the repo. Taking your sample code as an example, someone might look at the myapp deployment definition and ask: “does this deployment get created in the default namespace or does it automatically create a myapp namespace? What’s the default number of replicas? Are there any labels or annotations that get automatically added?” Etc. On the flip side, there’s potential lack of “greppability.” The user may have found a problem with a deployed resource in, say, the development cluster, and go to grep for some resource-specific string in the repo, only to come up empty because that string is not in the source but rather generated at by the templating system. To be clear, both of these problems can affect any method of generating config, be it yoke, helm, ksonnet, kustomize, or cue. It’s like a curse of abstraction. The more you make things into nice reusable components, the easier it is for you to build upon, and the harder it is for others to others to jump in and modify. At least with Cue you get properly typed values and parameter validation built in, which puts it miles ahead of “everything is a string” templating systems like the helm templates the article complains about.
- adamgordonbell 2y agoI'm very much onboard with the 'hey, code is useful' idea. Code is most useful when you want to build abstractions around infrastructure. You can do declarative code most of the time but bust out function calls and control flow and even more heavy weight abstractions when needed. And you get all that nice typechecking that speeds things up. This is basically why I joined Pulumi and why I joined Earthly before that. ( CI needs to move beyond YAML as well). Where I disagree is that Pulumi ( or CDK or CDKTF) running the language runtime of the language you've decided to use is a problem.
- figmert 2y agoSlightly related, in everything I see that allows adding secrets or env vars as code, they seem to prefer a list of objects instead of a key value pair for these. Does anyone know why this is? I know in some cases you can add additional values, but this seems easily solved by dynamically determining what the value is. I'd much rather write: env: key: value instead of env: - name: key value: value
- xena 2y agoThe reason they do that is because then you can do things like extract envvar values from secrets.
- mdaniel 2y agoPedantically, there's nothing stopping them from doing it the way CFN does it: dispatching on the value's type: env: AWS_REGION: us-east-1 AWS_SECRET_ACCESS_KEY: valueFrom: ... CFN even goes as far as having two ways to pull off that stunt, magic prefixes and objects Properties: ImageId: !Ref MyAwesomeAmi # or ImageId: Ref: MyAwesomeAmi # or cursed "{{resolve" syntax ImageId: !Join - '' - - '{{resolve:ssm:/aws/service/bottlerocket/aws-k8s-' - Ref: EksVersion - '/x86_64/latest/image_id}}' # which ends up being "ImageId: '{{resolve:ssm:/aws/service/bottlerocket/aws-k8s-1.31/x86_64/latest/image_id}}'" and then *that* gets replaced by the CFN service at provisioning time
- deleted 2y ago[deleted]
- jon-wood 2y ago> Yoke is a project that takes this basic idea to the next level. With Yoke, you write your infrastructure definitions in Go or Rust, compile it to WebAssembly, and then you take input and output Kubernetes manifests that get applied to the cluster. This just puts me in mind of https://howfuckedismydatabase.com/nosql/ https://howfuckedismydatabase.com/nosql/
- thebeardisred 2y agoI do not want the definitions of my infrastructure to be Turing complete.
- Kinrany 2y agoThe definitions can be declarative but generated from code
- dijit 2y agoI think we need something like samurai/ninja for terraform, that would be sweeeeet
- mdaniel 2y agoI believe you just discovered cdktf https://github.com/hashicorp/terraform-cdk#cdk-for-terraform https://github.com/hashicorp/terraform-cdk#cdk-for-terraform Also, I couldn't search for samurai in order to know if it's "jinja2 for $other_language" or what, but I just inferred that you wanted a templating language to generate terraform files
- weakfish 2y agoWe use Pulumi at my org, with TypeScript, and it’s actually genuinely a great experience to be able to have typed outputs of infrastructure. Example, poorly explained as I’m on mobile: - create an S3 bucket object - assign bucket.name to a variable - use variable as input to the creation of the managed airflow object, which asks for an S3 bucket as part of it’s config
- Rickasaurus 2y agoI feel like the whole distributing webasm binaries thing is tough to swallow. I get the argument, but surely there's a better way, like maybe you could make a tiny interpreter in webasm and distribute that with a human readable script.
- stego-tech 2y agoThese sorts of posts are fascinating "nerd snipes" to cryptids like me. On the surface, they look incredibly interesting and I want to learn more! Terraform isn't code? Please explain to me why not, you have my attention. Then I get to the real meat of the issue, which is often along the lines of, "I'm a software developer who has to handle my own infrastructure and I hate it, because infrastructure doesn't behave like software." Which, fair! That is a fair critique! Infrastructure does not behave like software, and that's intentional! It's almost certainly because I come from the Enterprise Tech world rather than Software Dev world, where the default state of infrastructure is permanent and mutable, forever. Modern devs, who (rightly!) like immutable containers and block storage and build tools to support these deployments by default, just don't get why the Enterprise tech stack is so much more different, and weird, and...crufty compared to their nifty and efficient CI/CD pipeline, just like I cannot fully appreciate the point of such a pipeline when I'm basically deploying bespoke machines for internal teams on the regular because politics dictates customer service over enterprise efficiency. It's the difference between building an assembly line for Corollas and Camrys (DevOps), and building a Rolls-Royce Phantom to spec for a VIP client (BizTech). That's not to say there hasn't been immense pressure to transform the latter into more like the former, and I've been part of some of those buildouts and transitions in my career (with some admittedly excellent benefits - Showback! Tenancy! Lifecycles!), but these gripes about Terraform are admittedly lost on me, because I'll never really encounter them. And if I did, I don't need to pickup programming to fix it necessarily. I just need to improve my existing system integrations so Ansible runbooks can handle the necessary automation for me.
- ctrlp 2y agowhat sort of cryptid are you?
- stego-tech 2y agoAs the username implies, the "dinosaur on the internet" kind. The classic trope of the IT person who live(d) in their windowless cave, surrounded by a cacophony of whirling fans and grinding hard drives, retired kit repurposed into a lab since the budget never allowed for a proper one. Graphic tees and blue jeans, an enigmatic mystery to the masses who complain stuff is broken but also that they don't know why I'm here since everything always works. So just your average IT person, really. What we lack in social graces, we make up for with good humor, excellent media recommendations, and a loved passion for what we create because we like seeing our users smile at their own lives being made easier. I guess the "cryptid" part comes in because I'm actively trying to improve said sociability and round out my flaws, unlike the stereotypical portrayals of the BOFH or IT Crowd.
- randomcatuser 2y agoWait this sounds really cool, I want to start exploring Kubernetes! Can someone with more experience tell me why I should? (currently I just make all my apps on NextJS/Supabase...) Is there a cost advantage vs using a more managed experience, say, Fly.io?
- yevpats 2y agocomplementary hitler uses docker https://www.youtube.com/watch?v=PivpCKEiQOQ https://www.youtube.com/watch?v=PivpCKEiQOQ . but yeah I think infrastructure is hard but at the end it's just a tool for a job, you can use terraform, cdk, pulumi, yoke - the cycle of X for Infrastructure is bad continues :)
- tryauuum 2y agowhat problem does it solve? - However, Pulumi has a few downsides: - You have to install the language runtimes and dependencies for the language you're using - The code has to run on the server that's managing the infrastructure This sounds reasonable at first, but then you come to the shocking realization that code that runs on the host machine can do literally anything it wants. This means that if a dependency gets popped, your infrastructure is now compromised and likely has cryptocurrency miners running on it. can't you just put whatever you use to manage infrastructure in a docker container / appimage / whatever and be free of "what if dependencies contain cryptominers" problem?
- dvektor 2y agoLittle did my guy know that he would be starting one of the more hackernews-ish arguments out there. "is terraform code?", and despite everyone knowing exactly what he means, everyone must try to prove him wrong because he didn't choose the best example to prove his point.