chore: Adds Cluster Module Option1

[EspenAlbert]

Description

Adds Cluster Module Option1

Link to any related issue(s): CLOUDP-331090

Type of change:

• Bug fix (non-breaking change which fixes an issue). Please, add the "bug" label to the PR.
• New feature (non-breaking change which adds functionality). Please, add the "enhancement" label to the PR. A migration guide must be created or updated if the new feature will go in a major version.
• Breaking change (fix or feature that would cause existing functionality to not work as expected). Please, add the "breaking change" label to the PR. A migration guide must be created or updated.
• This change requires a documentation update
• Documentation fix/enhancement

Required Checklist:

• I have signed the MongoDB CLA
• I have read the contributing guides
• I have checked that this change does not generate any credentials and that they are NOT accidentally logged anywhere.
• I have added tests that prove my fix is effective or that my feature works per HashiCorp requirements
• I have added any necessary documentation (if appropriate)
• I have run make fmt and formatted my code
• If changes include deprecations or removals I have added appropriate changelog entries.
• If changes include removal or addition of 3rd party GitHub actions, I updated our internal document. Reach out to the APIx Integration slack channel to get access to the internal document.

Further comments

[Copilot]

Pull Request Overview

This PR adds a complete “option1-full-expose” example module demonstrating how to configure a MongoDB Atlas cluster with all available inputs exposed.

• Introduces an example vars.example.tfvars showcasing sample values for all variables.
• Adds variables.tf, main.tf, and output.tf to declare, instantiate, and expose outputs of mongodbatlas_advanced_cluster.
• Includes providers.tf to pin the Atlas provider and Terraform version.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
examples/modules/option1-full-expose/vars.example.tfvars	Sample tfvars file with placeholders for cluster variables
examples/modules/option1-full-expose/variables.tf	Definition of all module variables with types, nullability, and defaults
examples/modules/option1-full-expose/providers.tf	Required provider block for MongoDB Atlas and Terraform version constraint
examples/modules/option1-full-expose/main.tf	Resource instantiation mapping each variable to the mongodbatlas_advanced_cluster
examples/modules/option1-full-expose/output.tf	Outputs for key attributes from the created cluster

Comments suppressed due to low confidence (2)

examples/modules/option1-full-expose/vars.example.tfvars:16

• [nitpick] Add a comment or placeholder indicating users should replace this hard-coded project_id with their own MongoDB Atlas project ID.

project_id   = "664619d870c247237f4b86a6"