Linuxkit and Moby aim to advance the container ecosystem. Linuxkit is a toolkit for building secure, portable, and lean operating systems for containers. Moby provides backend components and frameworks for assembling container platforms. It includes projects like containerd, runc, and linuxkit. The presentation demonstrated Redis OS, a containerized Linux distribution built using these tools.

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Linuxkit & Moby -
A sneak peek into the future of container ecosystem
Shantanu Deshpande
9th September 2017

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$ whoami
● Shantanu Deshpande
● DevOps Engineer at rtCamp Solutions Pvt Ltd.
● Container aficionado
Shantanu Deshpande @iamShantanu__

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Agenda
● Linuxkit
○ Motivation
○ Design Principles, Portability, Leanness, Security
● Moby
○ Motivation
○ Container History
● Demo: Moby and Linuxkit in action

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Motivation
“Not every platform provides Linux subsystem”
~ Solomon Hykes
Cloud Server
Desktop

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A toolkit for building secure, portable and lean operating systems for
containers
● Released by Docker Inc. at Dockercon 2017 in Austin (Texas)
● Brings native Docker and Linux container support to various
platforms
● Already in use in e.g. Docker for Mac/Windows from some time

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Supported Servers/ Desktop
Hypervisors
● Hyperkit (macOS)
● Hyper-V (Windows)
● qemu (macOS, Windows, Linux)
● VMware (macOS, Windows)
Linuxkit Design Principles: Portability
Supported Cloud Platforms
● Amazon Cloud Services
● Google Cloud
● Microsoft Azure
● packet.net

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● Image core= Linux Kernel + system libraries + container runtime
● Everything else can be removed or is optional!
● Minimal boot time
● Small foot print, image size ~ 35 MB.
Linuxkit Design Principles: Leanness

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● Container specific Oses reduce attack surface
● Isolation: services running inside dedicated containers
● Fine-grained control of privileges and resource consumption
● Immutable infrastructure
Linuxkit Design Principles: Security

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Sounds Good.. But how does Linuxkit and Moby relate?

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● Released by Docker Inc. at DockerCon 2017 in Austin (Texas)
● Moby Provides:
○ A library of containerized backend components
○ A framework for assembling these components into functional
container platforms
○ A reference origin (Moby Origin) as the base for the Docker
container platform
● Building container platform by means of containers
The Moby Project

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Moby Project in a nutshell

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● containerd
● infrakit
● swarmkit
● runc
● notary
● linuxkit
Moby Projects
● vpnkit
● libnetwork
● hyperkit
● buildkit
● datakit

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moby tool
moby-tool
iso
AMI
…...

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Containers in (2013 - 2014)

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The Cloud Native Era (2015- 2016)

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Containers going Mainstream (2017)

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Future of the container ecosystem (>=2017)

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Example:

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Demo: Redis OS

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Demo: Redis OS

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Sources
1. INTRODUCING MOBY PROJECT: A NEW OPEN-SOURCE PROJECT TO ADVANCE THE
SOFTWARE CONTAINERIZATION MOVEMENT
2. Announcing Linuxkit
3. Linuxkit repository
4. Moby repository
5. Moby tool repository
6. DockerCon 2017 - General Session Day 1 video

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One last thing...
Thank you for your attention!