Skill to write terraform configuration for oci landing zone terraform Exadata module

[RITHIKAKATHIR]

Summary

Adds the OCI Exadata Database Landing Zones Terraform skill.

The skill supports safe, module-constrained Terraform configuration for OCI Exadata Database Service on Dedicated Infrastructure across its complete dependency chain:

• Cloud Exadata Infrastructure
• Cloud VM Clusters
• DB Homes
• Container Databases (CDBs)
• Pluggable Databases (PDBs)

It strictly uses oci-landing-zones/terraform-oci-modules-oracle-database/tree/main/exadata-database, preserves existing repository patterns, and validates configuration via OCI MCP. It explicitly avoids local Terraform execution, managing prerequisite infrastructure (networking, IAM, Object Storage), or committing secrets and passwords to repository files.

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Changes

• ** Includes SKILL.md along with reference documentation (module.md, reference.md, input-collection.md, terraform-sources.md, validation.md, main-tf-map.md, and lifecycle-safety.md).
• Establish lifecycle & safety guardrails: Enforces sequential resource ordering, immutable field validation, state-ownership checks, a mandatory two-stage DB Home/database deletion flow, and user warnings for long-running Exadata operations.

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Capabilities & Scope Boundaries

• In Scope: Generating or updating configurations for Exadata Infrastructure, Cloud VM Clusters, DB Homes, CDBs, and PDBs.
• Explicitly Out of Scope: Local execution (terraform init/plan/apply — requires Terraform 1.5.0+), creating prerequisite network resources (VCNs, subnets, NSGs, gateways), IAM, or Object Storage components. Unsupported requests report module limitations directly rather than generating unapproved alternatives.