The way applications are being built and delivered across data centers is changing. The move to a service delivery model is well under way, and it’s closely tied to the shift to a devops culture. Central to this change is the implementation of a continuous delivery processes, using build tooling to deliver new and updated applications.
Also key are container technologies such as Docker, which allow you to abstract applications and services from the underlying OS, running in a secure silo and accessing underlying OS services only. Multiple containers can run on the same host, each protected from the others. Unlike hypervisor-based virtualization, containers don’t need a separate OS image, and containers can happily run on virtualized infrastructure -- including being hosted in infrastructure-as-a-service clouds.
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