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