feat(platform): improve database connector feature

[Piotr1215]

Content Description

• add VPC endpoints table for private subnet requirements
• add security group config with common error explanation
• add connectivity test before IAM setup
• add expected outputs and failure modes for each step
• add troubleshooting section for connection, IAM, and Pod Identity issues

Preview Link

https://deploy-preview-1481--vcluster-docs-site.netlify.app/docs/platform/next/administer/connector/iam_database

Internal Reference

Closes DOC-1079

@netlify /docs

Note

Enhances IAM Database Connector documentation with comprehensive AWS RDS setup guidance, troubleshooting, and verification steps.

• Prerequisites
  • Add RDS database version requirements (PostgreSQL 9.6.9+, MySQL 5.6.34+)
  • Add EKS requirements including Pod Identity Agent verification command
• Network Configuration
  • Add VPC endpoints table for private subnet clusters (RDS, STS, IAM, EKS, EC2)
  • Add security group configuration with common error explanation
• Setup Workflow
  • Add connectivity verification steps before IAM configuration
  • Add expected outputs and failure modes for PostgreSQL and MySQL
  • Improve IAM permission grant section with error handling
• Connector Secret
  • Split kubectl commands into PostgreSQL and MySQL tabs
  • Add secret verification command
• Troubleshooting
  • Add comprehensive troubleshooting section for connection, IAM, and Pod Identity issues
  • Include diagnostic commands and solutions table

^{Generated by Claude for commit ae8ae2e. Updates automatically on new commits.}

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[github-actions]

DOC-1079: Improve documentation of cloud setup for IAM backed DB connector

[lizardruss]

Added some suggestions, but not critical.

[loft-bot]

Review complete for cc8866d - no issues found.

The documentation improvements look comprehensive and well-structured. The changes add valuable setup verification steps, expected outputs, and troubleshooting guidance for AWS IAM Database Connector configuration.

E2E Tests: Skipped - changes are text content additions (prerequisites, troubleshooting guidance, verification commands) with no mermaid diagrams or significant structural changes that would affect visual rendering.

[loft-bot]

Review complete for ae8ae2e - no issues found.

The documentation improvements are well-structured and follow the style guide. The changes add valuable:

• Prerequisites with version requirements and verification commands
• Network configuration guidance with VPC endpoints table
• Connectivity verification steps with expected outputs
• Comprehensive troubleshooting section

E2E Tests: Skipped - changes are text content additions with no mermaid diagrams or significant structural changes that would affect visual rendering.