Remove cloudposse/template provider; migrate to templatefile()

[aknysh]

what

• Remove the cloudposse/template provider from src/versions.tf
• Replace data "template_file" "userdata" with the core templatefile() function (assigned to a local)
• Pass base64encode(local.userdata) to module.ec2_instance.user_data_base64
• Bump test module Go version to 1.26.1 and refresh all test dependencies to latest compatible versions
• Regenerate README.md / src/README.md via atmos readme

why

• The cloudposse/template provider is a fork of the long-deprecated hashicorp/template provider. It is unmaintained and does not ship modern platform builds (e.g. no native darwin_arm64 / linux_arm64 in recent releases)
• Its only data source — template_file — is superseded by the core templatefile() function that has been available in Terraform 0.12+ / OpenTofu 1.0+
• Removing the dependency simplifies the module's provider graph and eliminates a deprecated transitive requirement for every consumer of this component

references

• OpenTofu templatefile() docs: https://opentofu.org/docs/language/functions/templatefile/
• Template provider deprecation: https://github.com/hashicorp/terraform-provider-template

Summary by CodeRabbit

• Chores

  • Removed template provider dependency from Terraform configuration; replaced with inline implementation.
  • Updated Go toolchain and testing dependencies to latest stable versions.

• Documentation

  • Updated README files to reflect provider and dependency changes.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 7224de0e-c66b-42a3-9ea6-9bfd77fcb8e1

📥 Commits

Reviewing files that changed from the base of the PR and between 59c413c and a684b0f.

📒 Files selected for processing (5)

• README.md
• src/README.md
• src/main.tf
• src/remote-state.tf
• test/fixtures/vendor.yaml

📝 Walkthrough

Walkthrough

The pull request removes a dependency on the CloudPosse template provider by replacing template file data source usage with native Terraform templatefile() function calls. The change also updates Go testing dependencies to use version 1.26.1 and refreshes the module dependency graph.

Changes

Cohort / File(s)	Summary
Documentation README.md, src/README.md	Removed documentation entries for the template provider requirement (version >= 2.2) and the template_file.userdata resource from requirements, providers, and resources tables.
Terraform Provider & Module src/versions.tf, src/main.tf	Removed template provider declaration from required_providers block. Replaced data "template_file" "userdata" data source with inline locals.userdata computed using templatefile() function; updated EC2 module input to use base64encode(local.userdata) instead.
Go Dependencies test/go.mod	Updated Go toolchain from 1.24.x to 1.26.1 and refreshed the module dependency graph with advanced versions across direct dependencies (test-helpers, terratest, testify) and substantially restructured indirect dependencies, including AWS SDK v2 upgrades and introduction of additional transitive packages.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Suggested labels

needs-test

Poem

🐰 The template provider bids goodbye,
With templatefile() now standing by,
Dependencies dance to version 1.26,
Terraform's toolkit refreshed and fixed!
Cleaner code, less bloat to convey,
This refactor hops forward today!

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and concisely summarizes the main change: removing the cloudposse/template provider and migrating to the built-in templatefile() function.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch aknysh/remove-template-provider

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[mergify]

Important

Do not edit the README.md directly. It's auto-generated from the README.yaml

Please update the README.yaml file instead.

Could you fix it @aknysh? 🙏

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@src/main.tf`:
- Around line 9-11: The userdata assignment unconditionally calls
templatefile("${path.module}/templates/userdata.sh.tmpl", { user_data =
var.user_data }) which triggers evaluation even when local.enabled is false;
change the userdata expression to only call templatefile when local.enabled is
true (e.g., use a conditional expression that returns null or an empty string
when local.enabled is false) so that templatefile() is skipped and disabled-path
behavior is preserved; update the userdata assignment where templatefile() is
used and reference local.enabled, templatefile(), and var.user_data in the
conditional.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: b6ff7306-8b93-4c6b-b163-993dc801a8d8

📥 Commits

Reviewing files that changed from the base of the PR and between cb0f630 and 59c413c.

⛔ Files ignored due to path filters (1)

• test/go.sum is excluded by !**/*.sum

📒 Files selected for processing (5)

• README.md
• src/README.md
• src/main.tf
• src/versions.tf
• test/go.mod

💤 Files with no reviewable changes (3)

• src/README.md
• README.md
• src/versions.tf

[aknysh]

/terratest

[aknysh]

/terratest

[github-actions]

These changes were released in v2.0.0.