Docker Alternatives

Apache Mesos

Apache Mesos is a cluster manager that simplifies the complexity of running applications on a shared pool of servers.

Features:

• Hypervisor
• Operating system
• Virtual Machines
• Virtualization

OpenVZ

OpenVZ is container-based virtualization for Linux. OpenVZ creates multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server enabling better server utilization and ensuring that applications do not conflict. Each container performs and executes exactly like a stand-alone server; a container can be rebooted independently and have root access, users, IP addresses, memory, processes, files, applications, system libraries and configuration files.

Features:

• Container
• Container virtualization
• Linux-based
• Virtualization

Deis

Deis is an open source PaaS that leverages Docker, CoreOS and Heroku Buildpacks to provide a private application platform that is lightweight and flexible.

Features:

• Support for Docker
• Hypervisor
• Operating system
• Virtual Machines
• Virtualization

Singularity

Singularity creates a virtual environment for applications without the performance penalties associated with virtual machines. Best of both worlds: it simplifies the deployment of applications across different clusters and supercomputers by avoiding the laborious process of rehosting those applications for each distinct environment, without requiring a virtualized hardware layer.

Features:

• Container
• Single file container

LXC Linux Containers

LXC, acronym for Linux Containers, is a lightweight Linux kernel based virtualization solution, which practically runs on top of the Operating System, allowing you to run multiple isolated distributions the same time. The difference between LXC and KVM virtualization is that LXC doesn’t emulates hardware, but shares the same kernel namespace, similar to chroot applications.

Features:

• Container virtualization
• Sandbox
• Virtualization

rkt

rkt is the next-generation container manager for Linux clusters. Designed for security, simplicity, and composability within modern cluster architectures, rkt discovers, verifies, fetches, and executes application containers with pluggable isolation. rkt can run the same container with varying degrees of protection, from lightweight, OS-level namespace and capabilities isolation to heavier, VM-level hardware virtualization.

Features:

• Container
• Virtualization

Podman

podman is a daemonless container runtime for managing containers, pods, and container images. It is intended as a counterpart to CRI-O, to provide low-level debugging not available through the CRI interface used by Kubernetes. It can also act as a container runtime independent of CRI-O, creating and managing its own set of containers.