Prompt

Design reusable Terraform modules.

<infrastructure_patterns>
{common infrastructure patterns}
</infrastructure_patterns>

<cloud_providers>
{AWS/Azure/GCP requirements}
</cloud_providers>

<team_needs>
{self-service requirements}
</team_needs>

Design:
1. Module structure
2. Variable design
3. Output planning
4. Version strategy
5. Testing approach
6. Documentation standards