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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
Bocker is a minimal container management tool written in Bash that implements core container functionality using Linux namespaces and control groups. It serves as a Linux container manager capable of starting and managing isolated processes and images through low-level kernel features. The project includes an OCI image tool for pulling, saving, and building container images compatible with industry standards. It further integrates a cgroup resource controller to restrict CPU and memory consumption for isolated processes. The tool covers the full container lifecycle, including process isolati
Kata Containers is an OCI container runtime that launches containers inside lightweight virtual machines to combine hardware-level isolation with container operational speed. It functions as a hardware-isolated container engine and lightweight VM hypervisor, providing a virtual machine monitor interface that abstracts multiple hypervisors to optimize for performance or specific hardware emulation. The project distinguishes itself through a confidential computing runtime that leverages hardware-backed trusted execution environments, such as Intel TDX and AMD SEV-SNP, to protect data in use. It
Microsandbox is a runtime for creating and managing lightweight, hardware-isolated virtual machines — called sandboxes — that boot directly from standard OCI container images. Each sandbox runs as its own host process with a separate kernel, filesystem, and network stack, providing process-per-sandbox isolation. The project includes a command-line tool and multi-language SDKs (Rust, TypeScript, Python, Go) for programmatic lifecycle control, and it communicates with sandbox agents over Unix sockets using a CBOR-encoded protocol. What distinguishes Microsandbox is its combination of host-manag
Vagga is a containerization tool without daemons
The main features of tailhook/vagga are: DevOps & Infrastructure, Virtualization & Containers, Container Engines, Development and Deployment.
Open-source alternatives to tailhook/vagga include: firecracker-microvm/firecracker — Firecracker is a virtual machine monitor that leverages hardware-assisted virtualization to create and manage isolated… youki-dev/youki — Youki is a low-level container runtime written in Rust that creates and manages isolated containers according to Open… p8952/bocker — Bocker is a minimal container management tool written in Bash that implements core container functionality using Linux… kata-containers/kata-containers — Kata Containers is an OCI container runtime that launches containers inside lightweight virtual machines to combine… superradcompany/microsandbox — Microsandbox is a runtime for creating and managing lightweight, hardware-isolated virtual machines — called sandboxes… agrinman/tunnelto — tunnelto is a network tunneling tool that creates a public URL to forward traffic to a locally running web server,…