NetBox Operator

Overview

Designed and implemented a custom Kubernetes operator to synchronize VLAN and virtual machine assets into NetBox. This established a single source of truth for infrastructure inventory and restored governance over VM and network assets previously unmanaged at scale.

Key Achievements

• 📊 Single source of truth — Centralized infrastructure inventory management
• 🔒 Restored governance — Brought previously unmanaged assets under control
• 🔄 Real-time sync — Automatic synchronization of infrastructure changes

Technical Details

The operator watches Kubernetes resources and synchronizes them to NetBox:

VLANClaim Controller

• Monitors NetworkAttachmentDefinition resources from Harvester
• Synchronizes VLAN metadata to NetBox with conflict resolution
• Maintains declarative configuration with traceability

VM Asset Synchronization

• Discovers virtual machines across Harvester clusters
• Syncs VM metadata, IP addresses, and resource allocations
• Updates NetBox records in real-time as infrastructure changes

Technologies

Go Kubernetes Operator SDK NetBox Harvester REST API