The-DevOps-Daily/terraform-provider-validatefx

Add docker_image_tag validator

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#276 opened on Nov 10, 2025

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Description

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

Description:

  • Validate that a string is a valid Docker image tag or digest.

Acceptance criteria:

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

Contributor guide

Research direction
Study existing validators in internal/validators to understand the pattern, then implement docker image tag following the same structure. Add unit tests, register in registry.go, and update documentation.
Tech stack
go
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
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.
75