Sysbox
A container runtime that lets rootless containers run systemd, Docker and Kubernetes like virtual machines.
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About Sysbox
Sysbox is an alternative to runc, the low-level container runtime. It lets containers run system-level workloads such as systemd, Docker and Kubernetes without privileged mode, so a container can behave much like a lightweight virtual machine while staying isolated from the host.
It is installed on a Linux host and used by Docker or Kubernetes, with manifests provided for Kubernetes deployment. It suits people running Docker-in-Docker, CI runners or development environments that need a full system inside a container.
Strengths
- Runs Docker, systemd and Kubernetes inside containers without privileged mode
- Works as a drop-in runtime alongside Docker
- Kubernetes manifests included
Limitations
- Linux hosts only
- Low-level runtime that requires host configuration
Details
- Pricing
- FreeFree and open source.
- License
- Open source, license not stated
- Developer
- Nestybox
- Platforms
- Linux
- How it runs
- Downloadable app
- Account
- Not required
- Works offline
- Yes
- Best suited for
- Running Docker-in-Docker or system containers without privileged mode
- Categories
- Virtual machines, Container tools
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to Sysbox
Compare allSoftware that can replace Sysbox for an important use case, and what changes if you switch.
Kata Containers
An open-source container runtime that runs each container inside a lightweight virtual machine for stronger isolation.
Kata Containers runs each container inside a lightweight virtual machine with its own kernel, requiring hardware virtualization support on the host.
gVisor
An application kernel that sandboxes containers to isolate them from the host Linux kernel.
gVisor sandboxes containers with an application kernel through its runsc runtime for Docker and Kubernetes, though some applications may not be compatible.
Similar software
Related functionality, not necessarily a direct replacement.
LXC
System containers that run a full Linux userspace instead of a single process.
LXD
Canonical's open-source manager for system containers and KVM virtual machines on Linux.
Docker Engine
The container runtime that builds, packages and runs applications in Docker containers.
CRI-O
A lightweight container runtime built specifically to run containers for Kubernetes.
Cloud Hypervisor
An open source virtual machine monitor written in Rust for running modern cloud workloads on KVM.
Podman
Daemonless container engine with a Docker-compatible command line.
