FireCrackManager

A MicroVM management daemon for Firecracker. FireCrackManager is a part of Artica appliance ecosystem.

It provides a REST API and web-based UI for managing virtual machines, networks, kernel images, and root filesystems.

<img src="http://www.articatech.com/images/2025-12-14_04-03-19.png">

Features

Virtual Machine Management

• Create, start, stop, and delete MicroVMs
• Configure vCPU, memory, kernel arguments, and DNS servers
• Real-time VM status monitoring with reachability checks
• Serial console access via WebSocket
• Autorun: Automatically start designated VMs when FireCrackManager starts

Snapshots

• Create full and differential snapshots of running VMs
• List, restore, and delete snapshots
• Preserve VM state for quick recovery

Disk Management

• Attach additional virtual disks to VMs
• Automatic ext4 filesystem formatting
• Automatic fstab configuration for persistent mounts
• Support for multiple disks per VM

VM Import/Export

• Export VMs as .fcrack archives (virtual appliance format)
• Import .fcrack files to create new VMs
• Duplicate existing VMs with all configurations

Network Management

• Create isolated virtual networks with custom subnets
• Automatic TAP device and bridge creation
• NAT support for internet connectivity
• IP allocation and MAC address generation

Kernel & RootFS Management

• Download kernel images from URLs
• Download or create root filesystem images
• Upload custom images via web interface
• Set default kernel for new VMs

User & Group Management

• Multi-user support with role-based access (admin/user)
• Privilege Groups: Assign users to groups with specific permissions
• Group-level VM access control (start, stop, console, edit, snapshot, disk)
• Session-based authentication