The-DevOps-Daily/terraform-provider-validatefx

Add template_interpolation validator

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#313 opened on Nov 10, 2025

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enhancementhacktoberfestterraform

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Description

Implement a new provider::validatefx::template_interpolation validator.

Description:

  • Validate Terraform interpolation syntax (e.g. ${var.foo}).

Acceptance criteria:

  1. Subtask: Implement template_interpolation validator in internal/validators
  2. Subtask: Add unit tests for template_interpolation validator
  3. Subtask: Add template_interpolation function to internal/functions package
  4. Subtask: Add unit tests for template_interpolation function
  5. Subtask: Register template_interpolation in registry.go
  6. Subtask: Add documentation in examples/functions/template_interpolation/function.tf
  7. Subtask: Update docs table using make docs command
  8. Subtask: Add integration test in integration/main.tf

Contributor guide

Research direction
Implement the template interpolation validator in the Terraform provider by following the subtasks: create the validator in internal/validators, add unit tests, register it in registry.go, and update documentation. Start by examining existing validators for patterns.
Tech stack
goterraform
Domain
backenddevops
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GoTerraform
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65