https://github.com/j0hn-b/cue_demo

CUE is an open-source Data Validation language. Can be used to define and validate Kubernetes manifests, CRDs, and configuration files.
https://github.com/j0hn-b/cue_demo

cue data-validation json kubernetes yml

Last synced: about 1 month ago
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CUE is an open-source Data Validation language. Can be used to define and validate Kubernetes manifests, CRDs, and configuration files.

• Host: GitHub
• URL: https://github.com/j0hn-b/cue_demo
• Owner: J0hn-B
• Created: 2023-07-24T15:45:48.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-07-24T19:44:41.000Z (over 1 year ago)
• Last Synced: 2024-10-13T22:41:40.931Z (about 1 month ago)
• Topics: cue, data-validation, json, kubernetes, yml
• Language: CUE
• Homepage:
• Size: 55.7 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# CUE (Configure Unify Execute)

[CUE](https://cuelang.org/) is an open-source **Data Validation language** and inference engine with its roots in logic programming.

Instead of writing code like typical languages, **you provide values, types, definitions, and constraints** to Cue, and it **checks if what you entered is correct**.

For those familiar with [Rego](https://www.openpolicyagent.org/docs/latest/policy-language/), it's important to note that `CUE` and `Rego` are both declarative configuration languages but they have some key differences.

Overall, the choice between CUE and Rego depends on your specific use case.

If you need a general-purpose configuration language with data validation capabilities, CUE might be a better fit.

On the other hand, if your main focus is on defining and enforcing policies, [Rego](https://www.openpolicyagent.org/docs/latest/policy-language/) in combination with Open Policy Agent could be more suitable.

> CUE is still evolving and things are going to change.

This repo will display examples of how CUE can be used in different scenarios.

## Validate

`validate` dir contains the [ArgoCD](https://argo-cd.readthedocs.io/en/stable/) installation manifests in yaml format and the CUE files to validate them.

```bash

git clone https://github.com/J0hn-B/cue_demo.git && cd validate/

```

```bash

$ tree

    .

    |-- argocd.yml          # argocd installation

    |-- check.cue           # CUE Definitions

    `-- validate_tool.cue   # Logic and the sequence of commands to run the validation.

```

To validate the argocd manifests, run the following command:

```bash

cue cmd validate

```

Follow the instructions on terminal.