Proxmox Infrastructure: Matrix/Virgo-Core Cluster

Manage 3-node Proxmox VE cluster with CEPH storage, VLAN networking, and cloud-init automation.

Trigger Phrases

Use this skill when you see:

• "Clone the Ubuntu template to create a new VM"
• "Check CEPH storage health on the cluster"
• "Configure VLAN 30 networking for a Proxmox VM"
• "Create a cloud-init template from Ubuntu noble image"
• "What's the status of nodes Foxtrot, Golf, or Hotel?"
• "Deploy VMs using Terraform and the Proxmox provider"
• "Configure MTU 9000 for CEPH storage networks"
• "Troubleshoot VM deployment or networking issues"
• "Use Ansible community.general.proxmox modules"
• "Validate template configuration via Proxmox API"

Available Tools

Python Scripts (uv-based)

• validate_template.py - Validate template health via Proxmox API
• cluster_status.py - Cluster health metrics and node status
• check_ceph_health.py - CEPH storage pool health monitoring
• check_cluster_health.py - Comprehensive cluster diagnostics

All scripts support --help for usage. Run with: uv run tools/<script>.py

Automation Examples

• Ansible playbooks - Template creation, VLAN bridging setup
• Terraform modules - VM cloning, multi-node deployments with dual NICs

See examples/ and workflows/ for working configurations.

Core Capabilities

Template Management:

• Ubuntu/Debian cloud-init templates with virtio-scsi
• Serial console configuration for cloud images
• Proper boot order and cloud-init CD-ROM (ide2)

Network Infrastructure:

• vmbr0: Management (VLAN 9 for Corosync)
• vmbr1: CEPH Public (192.168.5.0/24, MTU 9000)
• vmbr2: CEPH Private (192.168.7.0/24, MTU 9000)
• VLAN-aware bridging (supports VLANs 2-4094)
• 802.3ad LACP bonding

CEPH Storage:

• Multi-OSD configuration (2× 4TB NVMe per node)
• MTU 9000 for storage networks
• Public/private network separation
• Health monitoring and diagnostics

API Automation:

• Python via proxmoxer library
• Ansible via community.general.proxmox_* modules
• Terraform via Telmate/proxmox provider

Cluster Architecture (Matrix)

Hardware: 3× MINISFORUM MS-A2

• AMD Ryzen 9 9955HX (16C/32T)
• 64GB DDR5 @ 5600 MT/s
• 3× NVMe: 1× 1TB boot, 2× 4TB CEPH OSDs
• 4× NICs: 2× 10GbE SFP+, 2× 2.5GbE

Nodes: Foxtrot, Golf, Hotel

Quick Examples

Clone template to VM:

qm clone 9000 101 --name web-01
qm set 101 --ipconfig0 ip=192.168.3.100/24,gw=192.168.3.1
qm set 101 --net0 virtio,bridge=vmbr0,tag=30
qm start 101

Check cluster health:

uv run tools/cluster_status.py
uv run tools/check_ceph_health.py

For Details

• reference/ - Cloud-init, networking, API, storage, QEMU guest agent
• workflows/ - Cluster formation, CEPH deployment automation
• examples/ - Terraform configs, Ansible playbooks
• anti-patterns/ - Common mistakes from real deployments