Sysbox
github.com
Spec sheet
- What it does
- Sysbox is a free, open-source container runtime that lets rootless containers run system workloads such as systemd, Docker, and Kubernetes in VM-like environments.Read 8 Oct 2026 · github.com
- Support
- Sysbox support is best-effort through the GitHub repository or Sysbox Slack, and Docker subscriptions do not include Sysbox support.Read 8 Oct 2026 · github.com
- License
- The project is licensed under the Apache License, Version 2.0.Read 8 Oct 2026 · github.com
- Container manager integrations
- Sysbox integrates with OCI-compatible container managers and orchestrators, including Docker and Kubernetes.Read 8 Oct 2026 · github.com
- Enterprise edition
- The README says Sysbox Enterprise is no longer offered as a standalone product and was incorporated into Docker Desktop.Read 8 Oct 2026 · github.com
- Host requirements
- The README recommends at least 4 CPUs and 4 GB RAM, and says the host needs a supported Linux distribution and architecture such as amd64 or arm64.Read 8 Oct 2026 · github.com
- Isolation
- It uses Linux user namespaces so root inside a container has zero privileges on the host, and virtualizes portions of procfs and sysfs.Read 8 Oct 2026 · github.com
- Linux support
- Sysbox installs on Linux hosts, with documented support for selected Ubuntu, Debian, and other Linux distributions; some listed distro installation paths are marked work-in-progress.Read 8 Oct 2026 · github.com
- Notable limitations
- The security guide says Sysbox does not currently support exposing host devices inside system containers and does not support reducing the allowed syscall set through a Docker seccomp profile.Read 8 Oct 2026 · github.com
- Security controls
- The security guide describes use of Linux namespaces, seccomp, resource limits through cgroups, and restrictions on initial mounts.Read 8 Oct 2026 · github.com
- Security limitation
- Sysbox strengthens isolation over regular Docker containers but provides weaker isolation than VM-based runtimes because containers share the Linux kernel.Read 8 Oct 2026 · github.com
- Use cases
- The project describes use in CI/CD pipelines, development and local testing environments, legacy application hosting, and isolated compute environments.Read 8 Oct 2026 · github.com
- Workloads
- The feature list describes Systemd-in-Docker, Docker-in-Docker, Kubernetes-in-Docker, K3s-in-Docker, and Buildx/Buildkit support.Read 8 Oct 2026 · github.com
Plans and prices
Sysbox Community Edition Free Free and open-source · Apache License 2.0 · Linux hosts Read 8 Oct 2026 · github.com
Where Specifiction places it
- Container Engines#25 of 317.1
- Container Runtime Software#25 of 287.1
