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8000 Docs: Small fixes in the Provider Cache Server documentation by RafaelWO · Pull Request #4959 · gruntwork-io/terragrunt · GitHub
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@RafaelWO RafaelWO commented Oct 15, 2025

Description

This PR fixes two issues in the Provider Cache Server documentation.

  1. Fix indent in provider cache server
    • This change intends the bullet points describing the additional sections added to the .terraformrc file.
  2. Fix typo of HTTP status code Locked:
    • This change fixes the HTTP status code for "Locked" which is 423, not 429.
    • Additionally, it adds a link to the MDN docs for this code.

TODOs

Read the Gruntwork contribution guidelines.

  • I authored this code entirely myself
  • I am submitting code based on open source software (e.g. MIT, MPL-2.0, Apache)]
  • I am adding or upgrading a dependency or adapted code and confirm it has a compatible open source license
  • Update the docs.
  • Run the relevant tests successfully, including pre-commit checks.
  • Include release notes. If this PR is backward incompatible, include a migration guide.

Release Notes (draft)

Fixed indent and typo in Provider Cache Server documentation

Migration Guide

Summary by CodeRabbit

  • Documentation
    • Improved readability in the provider-cache workflow by properly indenting two provider-related bullets as explicit list items.
    • Corrected the documented HTTP status for the Terragrunt Provider Cache server during the init flow from 429 Locked to 423 Locked, ensuring accuracy about expected responses.

This changes intends the bullet points describing the
additional sections added to the `.terraformrc` file.
This changes fixes the HTTP status code for "Locked"
which is 423 - not 429.
Additionally, it adds a link to the MDN docs for this code.
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coderabbitai bot commented Oct 15, 2025
📝 Walkthrough

Walkthrough

Documentation updated for the provider-cache workflow: adjusted bullet list indentation and changed the documented HTTP status for the Terragrunt Provider Cache server during init locking from 429 to 423.

Changes

Cohort / File(s) Summary
Docs: Provider Cache Server
docs-starlight/src/content/docs/03-features/13-provider-cache-server.md
Adjusted bullet indentation for provider-related items; updated documented HTTP status in init flow to 423 Locked (from 429).

Sequence Diagram(s)

sequenceDiagram
  autonumber
  actor U as User
  participant TG as Terragrunt CLI
  participant PCS as Provider Cache Server
  participant PR as Provider Registry

  rect rgb(245,248,255)
  note right of TG: Init flow
  U->>TG: terragrunt init
  TG->>PCS: Request provider download
  alt Cache available and unlocked
    PCS->>PCS: Serve cached provider
    PCS-->>TG: Provider archive (200)
  else Cache locked
    note right of PCS: Updated status code
    PCS-->>TG: 423 Locked
    TG-->>U: Inform lock and retry/backoff
  else Cache miss
    PCS->>PR: Fetch provider
    PR-->>PCS: Provider archive
    PCS-->>TG: Provider archive (200)
  end
  end
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Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested reviewers

  • denis256
  • yhakbar

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Description Check ⚠️ Warning The pull request description includes a clear summary of the changes and a completed TODO checklist, but it does not include the required “Fixes #” reference under the Description heading and leaves the Migration Guide section as an unfilled placeholder. Please add the appropriate issue reference in the form “Fixes #” beneath the Description section and either provide actual guidance in the Migration Guide section or remove that heading if no migration steps are needed.
✅ Passed checks (2 passed)
Check name Status Explanation
Title Check ✅ Passed The title succinctly describes the primary change by indicating that documentation for the Provider Cache Server has been updated with small fixes, making it clear and specific without extraneous detail.
Docstring Coverage ✅ Passed No functions found in the changes. Docstring coverage check skipped.
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Actionable comments posted: 0

🧹 Nitpick comments (1)
docs-starlight/src/content/docs/03-features/13-provider-cache-server.md (1)

81-82: Tighten grammar in the nested bullets

Both nested bullet sentences read awkwardly (comma splices, missing subjects), which hurts clarity. Please break them into clear sentences.

-    - [provider-installation](https://opentofu.org/docs/cli/config/config-file/#provider-installation) forces OpenTofu/Terraform to look for the required providers in the cache directory and create symbolic links to them, if not found, then request them from the remote registry.
-    - [host](https://github.com/hashicorp/terraform/issues/28309) forces OpenTofu/Terraform to [forward](#how-forwarding-requests-through-the-provider-cache-server-works) all provider requests through the Terragrunt Provider Cache server. The address link contains [UUID](https://en.wikipedia.org/wiki/Universally_unique_identifier) and is unique for each module, used by Terragrunt Provider Cache server to associate modules with the requested providers.
+    - [provider-installation](https://opentofu.org/docs/cli/config/config-file/#provider-installation) forces OpenTofu/Terraform to look for the required providers in the cache directory and create symbolic links to them. If a provider isn’t found locally, OpenTofu/Terraform requests it from the remote registry.
+    - [host](https://github.com/hashicorp/terraform/issues/28309) forces OpenTofu/Terraform to [forward](#how-forwarding-requests-through-the-provider-cache-server-works) all provider requests through the Terragrunt Provider Cache server. The address includes a [UUID](https://en.wikipedia.org/wiki/Universally_unique_identifier) that is unique to each module, which the Terragrunt Provider Cache server uses to associate modules with the requested providers.

As per coding guidelines.

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⚙️ CodeRabbit configuration file

Review the documentation for clarity, grammar, and spelling. Make sure that the documentation is easy to understand and follow. There is currently a migration underway from the Jekyll based documentation in docs to the Starlight + Astro based documentation in docs-starlight. Make sure that the docs-starlight documentation is accurate and up-to-date with the docs documentation, and that any difference between them results in an improvement in the docs-starlight documentation.

Files:

  • docs-starlight/src/content/docs/03-features/13-provider-cache-server.md
🪛 LanguageTool
docs-starlight/src/content/docs/03-features/13-provider-cache-server.md

[grammar] ~81-~81: There might be a mistake here.
Context: ...n request them from the remote registry. - [host](https://github.com/hashicorp/terra...

(QB_NEW_EN)


[grammar] ~82-~82: There might be a mistake here.
Context: ...er) and is unique for each module, used by Terragrunt Provider Cache server to ass...

(QB_NEW_EN)


[grammar] ~82-~82: There might be a mistake here.
Context: ...te modules with the requested providers. - Set environment variables: - [TF_CLI...

(QB_NEW_EN)


[grammar] ~83-~83: There might be a mistake here.
Context: ...roviders. - Set environment variables: - [TF_CLI_CONFIG_FILE](https://opentofu.org...

(QB_NEW_EN)

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