Transcript

Docker Networking In OpenStack

What you need to know now

Fawad Khaliq

2

About Me

• OpenStack Community Member

• Developer in Neutron

• Maintainer of PLUMgrid Neutron Plugin

(networking-plumgrid)

• How to contact and follow me

[email protected]

– @fawadkhaliq

– irc:fawadkhaliq

3

Agenda

• Docker Background

– The Rapid Adoption

– Use Cases

– Nova-Docker and Magnum

• Docker Networking

– Progress Report

– Magnum Networking

– Unified VM and Docker Networking with PLUMgrid

– Demo Time!

• Key Takeaways

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Introduction to Docker

• A common packaging format for

cloud applications.

• A high-level API to provide

lightweight containers that run

processes in isolation.

• 100+ million Docker Engine

downloads

• 45,000+ applications in Docker Hub

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Why The Explosion? It’s Lightweight

Server Hardware

Host Operating System

Hypervisor

Guest

OS

Guest

OSGuest OS

bins/libs bins/libs bins/libs

App A App A* App B

VMs

Server Hardware

Host Operating System

Docker Engine

bins/libs bins/libs

App A App A* App BContainers

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Docker Use Cases

• Easy Application Deployment

• Continuous Integration

• Application Lifecycle

• Continuous Delivery

• Platform-as-a-Service (PaaS)

• Distributed Applications

Composition

Server Hardware

Host Operating System

Docker Engine

Load

BalancerDatabase

Applicatio

n Servers

https://www.docker.com/resources/usecases/

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• Nova Compute

– driver for launching Docker containers as Nova instances

– Offers an overlap of features between Nova and Docker

– stackforge/nova-docker

• Heat

• Magnum

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Docker Networking Options – Circa 2013-14

container B

1

container A

Docker Proxy

iptables

Docker0

Linux Bridge

container A container B

Unix domain sockets2

container A

Host

network3

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Docker Networking Today – libnetwork

http://blog.docker.com/2015/04/docker-networking-takes-a-step-in-the-right-direction-2/

https://github.com/docker/libnetwork

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OpenStack Networking Today - Neutron

PLUMgrid Neutron Plugin

Neutron API

PLUMgrid ONS Backend

Neutron Server

PLUMgrid ONS

100% Software

On Demand NetworksPluggable and API Driven

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Networking Must Be Unified!

Common Networking LayerPLUMgrid Open Networking Suite for OpenStack

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Why? VMs and Containers Must CommunicateWith Each Other!

12

nova-compute

Docker Engine

nova-compute

Libvirt

VM1 VM2Container1 Container2

nova-api

network 1

network 2

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How It Works

Initiate

Create Port

Bind VIF

PLUMgrid

Neutron

Plugin

Neutron API

Nova APINova

Compute

Nova

Docker

PLUMgrid ONS Backend

Launch

Docker

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Is This Even Real?

Demo Time!

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Demo Setup

Kilo DevStack

Neutron with PLUMgrid ONS Plugin

Compute

Nova Libvirt Driver

PLUMgrid Edge

Controller +

Compute

Nova Docker Driver

PLUMgrid Director PLUMgrid Gateway

PLUMgrid Edge

Q&A

Thank you!

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