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GPU, USB, NICs and Other Physical Devices in Your Containers
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Kubernetes is a portable, extensible, open-source platform for managing containerized workloads and services, that facilitates both declarative configuration and automation. It has a large, rapidly growing ecosystem. Kubernetes services, support, and tools are widely available.
The name Kubernetes originates from Greek, meaning helmsman or pilot. Google open-sourced the Kubernetes project in 2014. Kubernetes builds upon a decade and a half of experience that Google has with running production workloads at scale, combined with best-of-breed ideas and practices from the community.
Going back in time
Containers are becoming popular because they have many benefits. Some of the container benefits are listed below:
Agile application creation and deployment: increased ease and efficiency of container image creation compared to VM image use.
Continuous development, integration, and deployment: provides for reliable and frequent container image build and deployment with quick and easy rollbacks (due to image immutability).
Dev and Ops separation of concerns: create application container images at build/release time rather than deployment time, thereby decoupling applications from infrastructure.
Observability not only surfaces OS-level information and metrics, but also application health and other signals.
Environmental consistency across development, testing, and production: Runs the same on a laptop as it does in the cloud.
Cloud and OS distribution portability: Runs on Ubuntu, RHEL, CoreOS, on-prem, Google Kubernetes Engine, and anywhere else.
Application-centric management: Raises the level of abstraction from running an OS on virtual hardware to running an application on an OS using logical resources.
Loosely coupled, distributed, elastic, liberated micro-services: applications are broken into smaller, independent pieces and can be deployed and managed dynamically – not a monolithic stack running on one big single-purpose machine.
Resource isolation: predictable application performance.
Resource utilization: high efficiency and density.
Why you need Kubernetes and what can it do
Containers are a good way to bundle and run your applications. In a production environment, you need to manage the containers that run the applications and ensure that there is no downtime. For example, if a container goes down, another container needs to start. Wouldn’t it be easier if this behavior was handled by a system?
That’s how Kubernetes comes to the rescue! Kubernetes provides you with a framework to run distributed systems resiliently. It takes care of your scaling requirements, failover, deployment patterns, and more. For example, Kubernetes can easily manage a canary deployment for your system.
The Linux Foundation
Published on Sep 15, 2017
GPU, USB, NICs and Other Physical Devices in Your Containers - Stéphane Graber, Canonical Ltd. The very definition of a container is that it's a set of processes, or in this case full operating system which is sharing the kernel with the host machine. This opens a full array of possibilities as far as what can be shared between host and container. This talk will be covering some of the most common use cases, such as sharing one or multiple GPUs with a container for compute use, accessing USB devices or physical network interfaces. Then go into slightly weirder cases of kernel device passthrough and see what can be done in such containers. Outside of the obvious GPU compute use case, device passthrough can also be used to consolidate a number of distinct, mostly idle or old machines into just a single one, including any custom hardware that they may have attached to them and with very little hassle. Working on Android apps and need to build a CI platform driving a large number of phones, USB passthrough can make this very easy for you too. LXD will be used as the container manager as it makes all of this rather easy as part of its goal to offer a VM-like environment but built on top of Linux containers. About Stéphane Graber Stéphane Graber works as the technical lead for LXD at Canonical Ltd. He is the upstream project leader for LXC and LXD and a frequent speaker and track leader at various containers and other Linux related events. Stéphane is also a long time contributor to the Ubuntu Linux distribution as an Ubuntu Core Developer and he currently sits on the Ubuntu Technical Board. On his spare time, Stéphane helps organize a yearly security conference and contest in Montréal, Northsec, where his knowledge of Linux and network infrastructure is used to simulate the most complex of environments for the contestants.
Category
Science & Technology
License
Creative Commons Attribution license (reuse allowed)
The name Kubernetes originates from Greek, meaning helmsman or pilot. Google open-sourced the Kubernetes project in 2014. Kubernetes builds upon a decade and a half of experience that Google has with running production workloads at scale, combined with best-of-breed ideas and practices from the community.
Going back in time
Containers are becoming popular because they have many benefits. Some of the container benefits are listed below:
Agile application creation and deployment: increased ease and efficiency of container image creation compared to VM image use.
Continuous development, integration, and deployment: provides for reliable and frequent container image build and deployment with quick and easy rollbacks (due to image immutability).
Dev and Ops separation of concerns: create application container images at build/release time rather than deployment time, thereby decoupling applications from infrastructure.
Observability not only surfaces OS-level information and metrics, but also application health and other signals.
Environmental consistency across development, testing, and production: Runs the same on a laptop as it does in the cloud.
Cloud and OS distribution portability: Runs on Ubuntu, RHEL, CoreOS, on-prem, Google Kubernetes Engine, and anywhere else.
Application-centric management: Raises the level of abstraction from running an OS on virtual hardware to running an application on an OS using logical resources.
Loosely coupled, distributed, elastic, liberated micro-services: applications are broken into smaller, independent pieces and can be deployed and managed dynamically – not a monolithic stack running on one big single-purpose machine.
Resource isolation: predictable application performance.
Resource utilization: high efficiency and density.
Why you need Kubernetes and what can it do
Containers are a good way to bundle and run your applications. In a production environment, you need to manage the containers that run the applications and ensure that there is no downtime. For example, if a container goes down, another container needs to start. Wouldn’t it be easier if this behavior was handled by a system?
That’s how Kubernetes comes to the rescue! Kubernetes provides you with a framework to run distributed systems resiliently. It takes care of your scaling requirements, failover, deployment patterns, and more. For example, Kubernetes can easily manage a canary deployment for your system.
The Linux Foundation
Published on Sep 15, 2017
GPU, USB, NICs and Other Physical Devices in Your Containers - Stéphane Graber, Canonical Ltd. The very definition of a container is that it's a set of processes, or in this case full operating system which is sharing the kernel with the host machine. This opens a full array of possibilities as far as what can be shared between host and container. This talk will be covering some of the most common use cases, such as sharing one or multiple GPUs with a container for compute use, accessing USB devices or physical network interfaces. Then go into slightly weirder cases of kernel device passthrough and see what can be done in such containers. Outside of the obvious GPU compute use case, device passthrough can also be used to consolidate a number of distinct, mostly idle or old machines into just a single one, including any custom hardware that they may have attached to them and with very little hassle. Working on Android apps and need to build a CI platform driving a large number of phones, USB passthrough can make this very easy for you too. LXD will be used as the container manager as it makes all of this rather easy as part of its goal to offer a VM-like environment but built on top of Linux containers. About Stéphane Graber Stéphane Graber works as the technical lead for LXD at Canonical Ltd. He is the upstream project leader for LXC and LXD and a frequent speaker and track leader at various containers and other Linux related events. Stéphane is also a long time contributor to the Ubuntu Linux distribution as an Ubuntu Core Developer and he currently sits on the Ubuntu Technical Board. On his spare time, Stéphane helps organize a yearly security conference and contest in Montréal, Northsec, where his knowledge of Linux and network infrastructure is used to simulate the most complex of environments for the contestants.
Category
Science & Technology
License
Creative Commons Attribution license (reuse allowed)
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