 🔐 Dual Secret Management Implementation Summary

  Key Components Created:

  1. KCL Configuration Schema (kcl/settings.k)
    - Added SecretProvider, SopsConfig, and KmsConfig schemas
    - Integrated into main Settings schema
  2. KMS Library (core/nulib/lib_provisioning/kms/lib.nu)
    - Full KMS implementation mirroring SOPS functionality
    - Supports Cosmian KMS with certificate, token, and basic auth
    - REST API integration via curl
  3. Unified Secrets Library (core/nulib/lib_provisioning/secrets/lib.nu)
    - Abstract interface supporting both SOPS and KMS
    - Automatic provider detection and switching
    - Backward compatibility with existing SOPS code
  4. New Secrets Command (core/nulib/main_provisioning/secrets.nu)
    - Unified CLI replacing/augmenting provisioning sops
    - Provider selection via --provider flag
  5. Configuration Files
    - Updated templates/default_context.yaml with KMS settings
    - Created templates/kms.yaml configuration template
    - Enhanced environment variable support

  Usage Examples:

  # Switch to KMS globally
  export PROVISIONING_SECRET_PROVIDER="kms"

  # Use new unified command
  ./provisioning secrets --encrypt file.yaml
  ./provisioning secrets --provider kms --decrypt file.yaml.enc

  # Backward compatibility - existing SOPS usage continues to work
  ./provisioning sops --encrypt file.yaml

  Migration Path:

  1. Immediate: All existing SOPS functionality remains unchanged
  2. Configure KMS: Add kms.yaml configuration file
  3. Switch Provider: Set secret_provider: "kms" in context
  4. Test: Use ./provisioning secrets commands
  5. Migrate: Replace direct SOPS function calls with secrets functions

  The implementation provides seamless switching between SOPS and KMS while maintaining full backward
  compatibility with your existing infrastructure.
