OS-level virtualization is an operating system (OS) virtualization paradigm in which the kernel allows the existence of multiple isolated user space instances, called containers, zones, virtual private servers (OpenVZ), partitions, virtual environments (VEs), virtual kernels, or jails. Such instances may look like real computers from the point of view of programs running in them. A computer program running on an ordinary operating system can see all resources of that computer. However, programs running inside of a container can only see the container's contents and devices assigned to the container.
These tables compare free software / open-source operating systems. Where not all of the versions support a feature, the first version which supports it is listed.
The Wing Python IDE family of integrated development environments (IDEs) from Wingware was created specifically for the Python programming language, with support for editing, testing, debugging, inspecting/browsing, and error checking Python code.
Calculate Linux is a Linux distribution optimized for fast deployment in an organization environment. It is based on the Gentoo Linux project and includes many preconfigured functions.
Linux Containers (LXC) is an operating-system-level virtualization method for running multiple isolated Linux systems (containers) on a control host using a single Linux kernel.
cgroups is a Linux kernel feature that limits, accounts for, and isolates the resource usage of a collection of processes.
OpenNebula is an open source cloud computing platform for managing heterogeneous data center, public cloud and edge computing infrastructure resources. OpenNebula manages on-premise and remote virtual infrastructure to build private, public, or hybrid implementations of Infrastructure as a Service and multi-tenant Kubernetes deployments. The two primary uses of the OpenNebula platform are data center virtualization and cloud deployments based on the KVM hypervisor, LXD/LXC system containers, and AWS Firecracker microVMs. The platform is also capable of offering the cloud infrastructure necessary to operate a cloud on top of existing VMware infrastructure. In early June 2020, OpenNebula announced the release of a new Enterprise Edition for corporate users, along with a Community Edition. OpenNebula CE is free and open-source software, released under the Apache License version 2. OpenNebula CE comes with free access to patch releases containing critical bug fixes but with no access to the regular EE maintenance releases. Upgrades to the latest minor/major version is only available for CE users with non-commercial deployments or with significant open source contributions to the OpenNebula Community. OpenNebula EE is distributed under a closed-source license and requires a commercial Subscription.
Juju is a free and open source application modeling tool developed by Canonical Ltd. Juju is an application management system. It was built to reduce the operation overhead of software by facilitating, deploying, configuring, scaling, integrating, and performing operational tasks on public and private cloud services along with bare-metal servers and local container-based deployments.
Docker is a set of platform as a service (PaaS) products that use OS-level virtualization to deliver software in packages called containers. The service has both free and premium tiers. The software that hosts the containers is called Docker Engine. It was first released in 2013 and is developed by Docker, Inc.
lmctfy is an implementation of an operating system–level virtualization, which is based on the Linux kernel's cgroups functionality.
ZeroVM is an open source light-weight virtualization and sandboxing technology. It virtualizes a single process using the Google Native Client platform. Since only a single process is virtualized, the startup overhead is in the order of 5 ms.
Proxmox Virtual Environment is a hyper-converged infrastructure open-source software. It is a hosted hypervisor that can run operating systems including Linux and Windows on x64 hardware. It is a Debian-based Linux distribution with a modified Ubuntu LTS kernel and allows deployment and management of virtual machines and containers. Two types of virtualization are supported: container-based with LXC, and full virtualization with KVM. It includes a web-based management interface. There is also a mobile application available for controlling PVE environments.
Anbox is a free and open-source compatibility layer that aims to allow mobile applications and mobile games developed for Android to run on Linux distributions. Canonical introduced Anbox Cloud, for running Android applications in a cloud environment.
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