firecracker-microvm/firecracker
Firecracker
Firecracker is a virtual machine monitor that leverages hardware-assisted virtualization to create and manage isolated execution environments. It functions as a lightweight runtime designed to launch virtual machines with minimal memory overhead and near-instantaneous startup times, providing the security of traditional hardware virtualization with the efficiency of containerized workloads.
The project distinguishes itself through a security-focused architecture that enforces strict process boundaries using system-level barriers and restricted user privileges. It minimizes the attack surface by implementing a minimalist device model, which includes only the essential virtualized hardware required for booting. Management of the virtual machine lifecycle and hardware configuration is handled through a synchronous network-based control plane, allowing for precise runtime adjustments to CPU, memory, and device attachments.
The system supports high-performance communication between the guest operating system and host resources through standardized device emulation. It is designed for multi-tenant infrastructure, enabling the secure execution of concurrent workloads on shared physical hardware. The software is distributed as a single statically linked binary to simplify deployment across diverse host environments.
Features
- Hypervisors - Creates and manages isolated virtual machine environments by leveraging hardware-assisted virtualization.
- MicroVM Runtimes - Executes isolated virtual machines that combine hardware-level security with rapid startup times.
- Virtualization Platforms - Deploys minimal virtual machines that offer hardware-level security with container-like efficiency.
- Sandboxing & Isolation - Enforces strict security boundaries using Linux namespaces and cgroups to isolate virtual machine processes.
- Execution Isolation Strategies - Isolates virtual machine processes using system-level barriers to prevent unauthorized access.
- Multi-Tenant Isolation - Provides strong hardware-level isolation between different users running on the same physical server.
- Secure Isolation Layers - Enforces strict process boundaries and restricted system access to ensure separation between execution environments.
- DevOps and Infrastructure - Secure microVMs for serverless computing.
- DevOps & Infrastructure - Lightweight virtual machine for containers.
- Infrastructure Services - Secure, fast microVMs for serverless computing environments.
- Serverless Infrastructure - Secure and fast microVMs for serverless workloads.
- Serverless Platforms - Secure microVMs for serverless computing.
- Systems And Services - Listed in the “Systems And Services” section of the The Book Of Secret Knowledge awesome list.
- Virtualization & Containers - Lightweight virtual machine for container workloads.
- Container Engines - Runs workloads in secure, lightweight microVMs.
- Hypervisor Implementations - Lightweight VMM for serverless and container workloads.
- Control Plane APIs - Manages virtual machine lifecycles and hardware configurations through a synchronous REST API.
- Serverless Runtimes - Runs short-lived code snippets in isolated environments that start and stop instantly.
- Virtual Machine Lifecycle Management - Manages virtual machine hardware settings and operational states through a network interface.
- Virtual Hardware Interfaces - Exposes a network-based configuration surface for managing virtual hardware resources.
- Virtual Device Drivers - Provides high-performance virtualized hardware drivers for efficient communication between guest and host.
- Cloud Native Compute Platforms - Provides rapid provisioning of isolated environments to handle fluctuating traffic demands.
- Hardware Emulators - Reduces the attack surface by implementing only the essential virtualized hardware devices required for booting.
