Docker Alternatives, Similar

Docker is an open-source engine that automates the deployment of any application as a lightweight, portable, self-sufficient container that will run virtually anywhere.Docker containers can encapsulate any payload, and will run consistently on and between virtually any server. The same container that a developer builds and tests on a laptop will run at scale, in production*, on VMs, bare-metal servers, OpenStack clusters, public instances, or combinations of the above.Common use cases for Docker include:• Automating the packaging and deployment of applications
• Creation of lightweight, private PAAS environments
• Automated testing and continuous integration/deployment
• Deploying and scaling web apps, databases and backend servicesDocker is available as Community Edition (CE) for free and an Enterprise Edition (EE) subscription with software, support and certification.