Provider Capabilities Matrix

This document provides a comprehensive overview of VirtRigaud provider capabilities as of v0.2.3.

Overview

VirtRigaud supports multiple hypervisor platforms through a provider architecture. Each provider implements the core VirtRigaud API while supporting platform-specific features and capabilities.

Core Provider Interface

All providers implement these core operations:

Validate: Test provider connectivity and credentials
Create: Create new virtual machines
Delete: Remove virtual machines and cleanup resources
Power: Control VM power state (On/Off/Reboot)
Describe: Query VM state and properties
GetCapabilities: Report provider-specific capabilities

Provider Status

Provider	Status	Implementation	Maturity
vSphere	✅ Production Ready	govmomi-based	Stable
Libvirt/KVM	✅ Production Ready	virsh-based	Stable
Proxmox VE	✅ Production Ready	REST API-based	Beta
Mock	✅ Complete	In-memory simulation	Testing

Comprehensive Capability Matrix

Core Operations

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
VM Create	✅	✅	✅	✅	All providers support VM creation
VM Delete	✅	✅	✅	✅	With resource cleanup
Power On/Off	✅	✅	✅	✅	Basic power management
Reboot	✅	✅	✅	✅	Graceful and forced restart
Suspend	✅	❌	✅	✅	Memory state preservation
Describe	✅	✅	✅	✅	VM state and properties
Reconfigure	✅	⚠️	✅	✅	CPU/Memory/Disk changes (Libvirt requires restart)
TaskStatus	✅	N/A	✅	✅	Async operation tracking
ConsoleURL	✅	✅	⚠️	✅	Remote console access (Proxmox planned)

Resource Management

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
CPU Configuration	✅	✅	✅	✅	Cores, sockets, threading
Memory Allocation	✅	✅	✅	✅	Static memory sizing
Hot CPU Add	✅	❌	✅	✅	Online CPU expansion
Hot Memory Add	✅	❌	✅	✅	Online memory expansion
Resource Reservations	✅	❌	✅	✅	Guaranteed resources
Resource Limits	✅	❌	✅	✅	Resource capping

Storage Operations

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
Disk Creation	✅	✅	✅	✅	Virtual disk provisioning
Disk Expansion	✅	✅	✅	✅	Online disk growth
Multiple Disks	✅	✅	✅	✅	Multi-disk VMs
Thin Provisioning	✅	✅	✅	✅	Space-efficient disks
Thick Provisioning	✅	✅	✅	✅	Pre-allocated storage
Storage Policies	✅	❌	✅	✅	Policy-based placement
Storage Pools	✅	✅	✅	✅	Organized storage management

Network Configuration

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
Basic Networking	✅	✅	✅	✅	Single network interface
Multiple NICs	✅	✅	✅	✅	Multi-interface VMs
VLAN Support	✅	✅	✅	✅	Network segmentation
Static IP	✅	✅	✅	✅	Fixed IP assignment
DHCP	✅	✅	✅	✅	Dynamic IP assignment
Bridge Networks	❌	✅	✅	✅	Direct host bridging
Distributed Switches	✅	❌	❌	✅	Advanced vSphere networking

VM Lifecycle

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
Template Deployment	✅	✅	✅	✅	Deploy from templates
Clone Operations	✅ Complete	✅	✅	✅	Full VM duplication with snapshot support
Linked Clones	✅	❌	✅	✅	COW-based clones with automatic snapshot creation
Full Clones	✅	✅	✅	✅	Independent copies
VM Reconfiguration	✅ Complete	⚠️ Restart Required	✅	✅	Online resource modification

Snapshot Operations

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
Create Snapshots	✅	✅	✅	✅	Point-in-time captures
Delete Snapshots	✅	✅	✅	✅	Snapshot cleanup
Revert Snapshots	✅	✅	✅	✅	Restore VM state
Memory Snapshots	✅	❌	✅	✅	Include RAM state
Quiesced Snapshots	✅	❌	✅	✅	Consistent filesystem
Snapshot Trees	✅	✅	✅	✅	Hierarchical snapshots

Image Management

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
OVA/OVF Import	✅	❌	✅	✅	Standard VM formats
Cloud Image Download	❌	✅	✅	✅	Remote image fetch
Content Libraries	✅	❌	❌	✅	Centralized image management
Image Conversion	❌	✅	✅	✅	Format transformation
Image Caching	✅	✅	✅	✅	Performance optimization

Guest Operating System

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
Cloud-Init	✅	✅	✅	✅	Guest initialization
Guest Tools	✅	✅	✅	✅	Enhanced guest integration
Guest Agent	✅	✅	✅	✅	Runtime guest communication
Guest Customization	✅	✅	✅	✅	OS-specific customization
Guest Monitoring	✅	✅	✅	✅	Resource usage tracking

Advanced Features

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
High Availability	✅	❌	✅	✅	Automatic failover
DRS/Load Balancing	✅	❌	❌	✅	Resource optimization
Fault Tolerance	✅	❌	❌	✅	Zero-downtime protection
vMotion/Migration	✅	❌	✅	✅	Live VM migration
Resource Pools	✅	❌	✅	✅	Hierarchical resource mgmt
Affinity Rules	✅	❌	✅	✅	VM placement policies

Monitoring & Observability

Capability	vSphere	Libvirt	Proxmox	Mock	Notes
Performance Metrics	✅	✅	✅	✅	CPU, memory, disk, network
Event Logging	✅	✅	✅	✅	Operation audit trail
Health Checks	✅	✅	✅	✅	VM and guest health
Alerting	✅	❌	✅	✅	Threshold-based notifications
Historical Data	✅	❌	✅	✅	Performance history
Console URL Generation	✅	✅	⚠️	✅	Web/VNC console access (Proxmox planned)
Guest Agent Integration	✅	✅	✅ Complete	✅	IP detection and guest info

Provider-Specific Features

vSphere Exclusive

vCenter Integration: Full vCenter Server and ESXi support
Content Library: Centralized template and ISO management
Distributed Resource Scheduler (DRS): Automatic load balancing
vMotion: Live migration between hosts
High Availability (HA): Automatic VM restart on host failure
Fault Tolerance: Zero-downtime VM protection
Storage vMotion: Live storage migration
vSAN Integration: Hyper-converged storage
NSX Integration: Software-defined networking
Hot Reconfiguration: Online CPU/memory/disk changes with hot-add support
TaskStatus Tracking: Real-time async operation monitoring via govmomi
Clone Operations: Full and linked clones with automatic snapshot handling
Web Console URLs: Direct vSphere web client console access

Libvirt/KVM Exclusive

Virsh Integration: Command-line management
QEMU Guest Agent: Advanced guest OS integration
KVM Optimization: Native Linux virtualization
Bridge Networking: Direct host network bridging
Storage Pool Flexibility: Multiple storage backend support
Cloud Image Support: Direct cloud image deployment
Host Device Passthrough: Hardware device assignment
Reconfiguration Support: CPU/memory/disk changes via virsh (restart required)
VNC Console Access: Direct VNC console URL generation for remote viewers

Proxmox VE Exclusive

Web UI Integration: Built-in management interface
Container Support: LXC container management
Backup Integration: Built-in backup and restore
Cluster Management: Multi-node cluster support
ZFS Integration: Advanced filesystem features
Ceph Integration: Distributed storage
Guest Agent IP Detection: Accurate IP address extraction via QEMU guest agent
Hot-plug Reconfiguration: Online CPU/memory/disk modifications
Complete CRD Integration: Full Kubernetes custom resource support

Mock Provider Features

Testing Scenarios: Configurable failure modes
Performance Simulation: Controllable operation delays
Sample Data: Pre-populated demonstration VMs
Development Support: Full API coverage for testing

Supported Disk Types

Provider	Disk Formats	Notes
vSphere	thin, thick, eagerZeroedThick	vSphere native formats
Libvirt	qcow2, raw, vmdk	QEMU-supported formats
Proxmox	qcow2, raw, vmdk	Proxmox storage formats
Mock	thin, thick, raw, qcow2	Simulated formats

Supported Network Types

Provider	Network Types	Notes
vSphere	distributed, standard, vlan	vSphere networking
Libvirt	virtio, e1000, rtl8139	QEMU network adapters
Proxmox	virtio, e1000, rtl8139	Proxmox network models
Mock	bridge, nat, distributed	Simulated network types

Provider Images

All provider images are available from the GitHub Container Registry:

vSphere: ghcr.io/projectbeskar/virtrigaud/provider-vsphere:v0.2.3
Libvirt: ghcr.io/projectbeskar/virtrigaud/provider-libvirt:v0.2.3
Proxmox: ghcr.io/projectbeskar/virtrigaud/provider-proxmox:v0.2.3
Mock: ghcr.io/projectbeskar/virtrigaud/provider-mock:v0.2.3

Choosing a Provider

Use vSphere When:

You have existing VMware infrastructure
You need enterprise features (HA, DRS, vMotion)
You require advanced networking (NSX, distributed switches)
You need centralized management (vCenter)

Use Libvirt/KVM When:

You want open-source virtualization
You’re running on Linux hosts
You need cost-effective virtualization
You want direct host integration

Use Proxmox VE When:

You need both VMs and containers
You want integrated backup solutions
You need cluster management
You want web-based management

Use Mock Provider When:

You’re developing or testing VirtRigaud
You need to simulate VM operations
You’re creating demos or training materials
You’re testing VirtRigaud without hypervisors

Performance Considerations

vSphere

Best for: Large-scale enterprise deployments
Scalability: Hundreds to thousands of VMs
Overhead: Higher due to feature richness
Resource Efficiency: Excellent with DRS

Libvirt/KVM

Best for: Linux-based deployments
Scalability: Moderate to large deployments
Overhead: Low, near-native performance
Resource Efficiency: Good with proper tuning

Proxmox VE

Best for: SMB and mixed workloads
Scalability: Small to medium deployments
Overhead: Moderate
Resource Efficiency: Good with clustering

Future Roadmap

Planned Enhancements

vSphere

vSphere 8.0 support
Enhanced NSX integration
GPU passthrough support
vSAN policy automation

Libvirt

Live migration support
SR-IOV networking
NUMA topology optimization
Enhanced performance monitoring

Proxmox

HA configuration
Storage replication
Advanced networking
Performance optimizations

Support Matrix

Feature Category	vSphere	Libvirt	Proxmox	Mock
Production Ready	✅	✅	✅ Beta	✅ Testing
Documentation	Complete	Complete	Complete	Complete
Community Support	Active	Active	Growing	N/A
Enterprise Support	Available	Available	Available	N/A

Version History

v0.2.3: Provider feature parity - Reconfigure, Clone, TaskStatus, ConsoleURL
v0.2.2: Nested virtualization, TPM support, comprehensive snapshot management
v0.2.1: Critical fixes, documentation updates, VMClass disk settings
v0.2.0: Production-ready vSphere and Libvirt providers
v0.1.0: Initial provider framework and mock implementation

This document reflects VirtRigaud v0.2.3 capabilities. For the latest updates, see the VirtRigaud documentation.

VirtRigaud Documentation