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Docker 101: Introduction to Docker Webinar Recap Video

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Docker is standardizing the way to package applications, making it easier for developers to code and build apps on their laptop or workstation and for IT to manage, secure and deploy into a variety of infrastructure platforms

In last week’s webinar, Docker 101: An Introduction to Docker, we went from describing what a container is, all the way to what a production deployment of Docker looks like, including how large enterprise organizations and world-class universities are leveraging Docker Enterprise Edition (EE)  to modernize their legacy applications and accelerate public cloud adoption.

If you missed the webinar, you can watch the recording here:

We ran out of time to go through everyone’s questions, so here are some of the top questions from the webinar:

­Q: How does Docker get access to platform resources, such as I/O, networking, etc.­ Is it a type of hypervisor?

A: Docker EE is not a type of hypervisor. Hypervisors create virtual hardware: they make one server appear to be many servers but generally know little or nothing about the applications running inside them. Containers are the opposite: they make one OS or one application server appear to be many isolated instances. Containers explicitly must know the OS and application stack but the hardware underneath is less important to the container. In Linux operating systems, the Docker engine is a daemon installed directly in a host operating system kernel that isolates and segregates different procedures for the different containers running on that operating system. The platform resources are accessed by the host operating system and each container gets isolated access to these resources through segregated namespaces and control groups (cgroups). cgroups allow Docker to share available hardware resources to containers and optionally enforce limits and constraints. You can read more about this here.

Read the entire article here, Docker 101: Introduction to Docker webinar recap

via the fine folks at Docker.

Categories:
Docker Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. The same container that a developer builds and tests on a laptop can run at scale, in production, on VMs, bare metal, OpenStack clusters, public clouds and more.

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