hcl VS consul

Terraform HCL (HashiCorp Configuration Language) is an essential language for cloud engineers in 2024, particularly for those involved in infrastructure as code (IaC) practices. HCL is the configuration language used by Terraform, a widely adopted tool that enables engineers to define, provision, and manage cloud infrastructure using a declarative configuration approach. Learning Terraform HCL allows cloud engineers to automate the deployment and lifecycle management of cloud resources across various service providers, ensuring consistency, repeatability, and scalability of cloud environments.

Reminds me of [HCL](https://github.com/hashicorp/hcl), but without all the providers to deploy the config?

HCL: A Go implementation structured configuration language. The native syntax of HCL is inspired by libucl and nginx configurations. It is used to create a structured configuration language that is friendly to humans and machines, mainly for DevOps tools, server configurations, and resource configurations as a Terraform language.

HCL has a JSON representation [1], internally, objects behave that way. so it should be possible to write a Jsonnet wrapper around it. Terraform can currently parse json pipelines too.

[1]: https://github.com/hashicorp/hcl/blob/main/json/spec.md

>https://noyaml.com/

I'm not sure this is the criticism you think it is. Wow, so you basically have to add quotes to get strings in some ambiguous situations?

Yeah sure you could probably improve YAML by getting rid of these weird pitfalls, but that is a minor improvement. The alternative isn't something like TOML, because YAML is optimized for hierarchical configuration. It's every vendor implementing a different syntax such as Hashicorp with their HCL [0].

[0] https://github.com/hashicorp/hcl

The Hashicorp corporation has made a huge impact in providing valuable tools and platforms in the cloud ecosystem. The advantage of using the tools they provide, such as Terraform, Vault, and Packer, is that they all have the same language, Hashicorp Configuration Language (HCL). This means you can easily pick up any of these tools by learning HCL, which is similar to JSON. This approach can be useful when choosing tools to learn or use for a project.

Format is HCL language feature: https://github.com/hashicorp/hcl/blob/main/hclwrite/public.go

Hi, from what I read from HCL Github "HCL is a syntax and API specifically designed for building structured configuration formats.".

When the desired state is relatively simple to define and the mechanism to reach that state is not that important, writing up a declaration of what is needed and letting something/someone else deal with it is the most logical abstraction. This would be like drafting up the architectural draft for your new restaurant and paying a contracting company to actually build it, or writing HTML and letting a web browser render it, or writing a Terraform HCL file and letting the Terraform CLI tool apply it. This is called declarative programming in the software world, and has many advantages (and a few disadvantages!) for cloud infrastructure management.

The JHipster scaffolded sample application has a gateway application and two microservices. It uses Consul for service discovery and centralized configuration.

Service Discovery: Microservices need to discover and communicate with each other dynamically. Service discovery tools like etcd, Consul, or Kubernetes built-in service discovery mechanisms help locate and connect to microservices running on different nodes within the infrastructure.

After some research and testing, I landed on using Consul and Fabio as the demo infrastructure. Of course, there is a myriad of other options to accomplish this task, but because of the low configuration and ease of use, I was impressed with this pairing. Both projects are mature and well-supported, and very flexible--just because you can run them with low configuration, doesn't mean you have to. I wanted to keep this demo constrained, but the exercise did get me excited about exploring things further: circuit breakers, traffic splitting, and more complex service meshes.

The goal is to be able to use Consul SD configurations to allow for retrieving scrape targets from consul. Is this possible? Can anyone provide an example? Thank you!!

https://github.com/hashicorp/consul/pull/12080 - this should be the Consul issue that brought down Roblox

The Consul collector is production ready! Consul by HashiCorp is a powerful and complex identity-based networking solution, which is not trivial to monitor. We were lucky to have the assistance of HashiCorp itself in this endeavor, which resulted in a monitoring solution of exceptional quality. Look for common blog posts and announcements in the coming weeks!

Changed the service discovery to Consul, since this is the default in JHipster 8.

In another effort to standardize development and operations, Lob has just wrapped up our container orchestration migration from Convox to HashiCorp’s Nomad, led by Senior Platform Engineer Elijah Voigt. In this new ecosystem, one feature available to us is Consul Service Mesh (a feature of Consul, which is part of our Lob Nomad stack).

Service registry and discovery etcd, consul, nacos