Michael Crosby

What is containerd ?

We have done a few talks in the past on different features of containerd, how it was designed, and some of the problems that we have fixed along the way.  Containerd is used by Docker, Kubernetes CRI, and a few other projects but this is a post for people who may not know what containerd actually does within these platforms.  I would like to do more posts on the featureset and design of containerd in the future but for now, we will start with the basics. I think the container ecosystem can be confusing at times. Especially with the terminology that we use. Whats this? A runtime. And this? A runtime…  containerd as the name implies, not contain nerd as some would like to troll me with, is a container daemon.  It was originally built as an integration point for OCI Continue reading…

Solomon Hykes

Docker to donate containerd to the Cloud Native Computing Foundation

Today, Docker announced its intention to donate the containerd project to the Cloud Native Computing Foundation (CNCF). Back in December 2016, Docker spun out its core container runtime functionality into a standalone component, incorporating it into a separate project called containerd, and announced we would be donating it to a neutral foundation early this year. Today we took a major step forward towards delivering on our commitment to the community by following the Cloud Native Computing Foundation process and presenting a proposal to the CNCF Technical Oversight Committee (TOC) for containerd to become a CNCF project. Given the consensus we have been building with the community, we are hopeful to get a positive affirmation from the TOC before CloudNativeCon/KubeCon later this month.   Over the past 4 years, the adoption of containers with Docker has triggered an unprecedented wave of innovation in our industry: Continue reading…

Michael Crosby

containerd summit recap: slides, videos and meeting notes

Last week, we hosted a containerd summit for contributors and maintainers. Containerd is a core container runtime with an emphasis on simplicity, robustness and portability. It is available as a daemon for Linux and Windows, which can manage the complete container lifecycle of its host system: image transfer and storage, container execution and supervision, snapshot storage for container filesystems and a few other things to make the management of containers robust. We started off by getting everyone up to speed on the project, roadmap and goals before diving down into specific issues and design of containerd.  We had a couple breakout sessions where we discussed blocking issues and feature requests by various members of the community. You can see a summary of the breakout sessions in last week’s development report in the containerd repository and the various presentations below: Deep Dive into Continue reading…

Orchestrating Docker with Machine, Swarm and Compose

Back in December, we announced our new tools for orchestrating distributed apps: Machine, Swarm, and Compose. Today the first versions of these tools are available to download. They’re not ready for production yet, but we’d really like for you to try them out and tell us what you think. Machine takes you from “zero-to-Docker” with a single command. It lets you easily deploy Docker Engines on your computer, on cloud providers, and in your own data center. Read more and download on Machine’s blog post. Swarm is native clustering for Docker containers. It pools together several Docker Engines into a single, virtual host. Point a Docker client or third party tool (e.g., Compose, Dokku, Shipyard, Jenkins, the Docker client, etc.) at Swarm and it will transparently scale to multiple hosts. A beta version of Swarm is now available, and we’re Continue reading…

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Scaling Docker with Swarm

We are extremely excited to announce the first beta release of Swarm, a native clustering tool for Docker. For the past two years, Docker has made the lives of millions of developers easier by making building, shipping and running applications simpler through containers. However, things get complicated when dealing with more than one host for Docker containers in a distributed environment.  This is where Swarm comes in. Swarm pools together several Docker Engines and exposes them as a single virtual Docker Engine. It serves the standard Docker API, so any tool that already works with Docker can now transparently scale up to multiple hosts.

Victor Coisne

DockerCon video: Ending the IaaS PaaS dichotomy

In this video, Craig Mcluckie and Brandon Burns from Google further describe Kubernetes and the container-optimized Google Compute Engine images, making it simple to run Docker containers on Google Cloud Platform.     Learn More Watch Eric Brewer’s DockerCon keynote video Watch Kate Volkova’s DockerCon keynote video Read more about Docker on the Google Cloud Platform Blog Docker Events and Meetup View the list of upcoming events & meetup Find a Docker meetup group Try Docker and stay up-to-date Try our online tutorial Sign up for Docker Weekly