a dive into containers and docker

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A Dive Into Containers and DockerMatt Farina / @mattfarinaCloudDevelop 2015

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•@mattfarina•mattfarina.com•HP Hewlett Packard Enterprise

• Advanced Technology Group

• Go, Node.js, PHP, Ruby, .NET, Python

• 5 years building in cloud

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http://www.slideshare.net/mattfarina/a-dive-into-containers-and-docker

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1.Historical2.Informational3.Practical

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Change

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History: From The Beginning Up To Containers

Long Ago 1980’s 1990’s 2000’s 2010’s

Way Back WhenThe wheel

1990First WebBrowser

1989Web Invented

1995Beowulf cluster

2006AWS

2007Heroku

0/0/0000Calendars reset

1984DEC VAXcluster

2001VMwareESX Server

2011Cloud Foundry

2010OpenStack

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Compute Networking Storage

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But, Containers Aren’t A New Technology

https://www.flickr.com/photos/littlemisspurps/14925392516/

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History: Container Highlights

Long Ago 1980’s 1990’s 2000’s 2010’s

Way Back WhenThe wheel

1990First WebBrowser

1989Web Invented

1995Beowulf cluster

2006AWS

2007Heroku

0/0/0000Calendars reset

1984DEC VAXcluster

2001VMwareESX Server

2011Cloud Foundry

2010OpenStack

2000FreeBSDJails

2004SolarisContainers

1979Unix chroot

2005OpenVZ

2007cgroups

2015Google BorgPaper

2013Docker

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What did Docker do to make containers a hit?

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User Experience

https://www.flickr.com/photos/pveugen/3182820590/

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Virtual Machines

ServerHost OS

Hypervisor

Guest OS

Guest OS

Guest OS

bins/libs bins/libs bins/libs

App A1 App A2 App B

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Virtual Machines vs. Containers

ServerHost OS

Hypervisor

Guest OS

Guest OS

Guest OS

bins/libs bins/libs bins/libs

App A1 App A2 App B

ServerHost OS

bins/libs bins/libs

App A1

App A2 App B

Cont

ain

er

Man

ager

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Virtual Machine Unused Resources

Server

VM VM VM

App App App

VM VM VM

App App AppUnused Space InsideEach VM

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Virtual Machines vs. Containers

Server Server

VM VM VM

App App App

VM VM VM

App App App

App

App

App

App

App

App

App

App

App

App

App

App

App

App

App

App

App

App

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bins / libsAre Layered

Layers Are ReusableAnd Shared

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An Example of Layers

Ubuntu

Java

Tomcat

An Application

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Layers Are Shared

Server

Host OS

Ubuntu

Java Go

Tomcat

App A

App B App C

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Layers Are Shared

Server

Host OS

Ubuntu

Java Go

Tomcat

App A

App B App C

31 2 4 5 6

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Volumes

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/var/volume2

/var/volume1

Container

26 https://www.flickr.com/photos/jakerust/16844922351

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Virtual Machines can have hardware level separation

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Virtual Machine Border

Server

VM

AppVirtual Machines havea border of hardwareemulation

VM

App

VM

App

VM

App

VM

App

VM

App

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Virtual MachinesAre A Fairly SafeMulti-Tenant Solution

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What aboutcontainers?

https://www.flickr.com/photos/arboghast/3176160087/

31 https://www.flickr.com/photos/kevandotorg/6229660191

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A Shared Kernel and Drivers

Server

Host OS

bins/libs bins/libs

App A1

App A2 App B

Cont

ain

er

Man

ager

Kernel Drivers

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A Company Datacenter As ATrusted Place

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Intel Clear ContainersLeverage:•Virtualization technology•Kernel Optimizations•Systemd Optimizations•DAX (direct access) in 4.0 kernel•Kernet same-page merging (KSM)

•More…

36 https://www.flickr.com/photos/kevandotorg/6229660191

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Docker Engine

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App Container spec

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If You’re Using It Today

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You Don’t Want To RunContainers InIsolation

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Dynamic Scheduling

Machine

App

App

App

App

App

App

App

App

App

App

App

App

App

App

App

App

App

AppAPI

Metadata+

Supporting Things

Application+

Cloud Native Arch

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A Machine Can Be A Server Or A Lot More

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Deployment

Provisioning

Lifecycle Manageme

nt

Service Manageme

nt

Reporting And

Monitoring

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PaaS For More Than Web Applications

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The Docker WayDocker Swarm Docker Compose

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Code

Push

ScanTest

Deploy

CI/CD

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Jenkins + Docker

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What Can You Use Today?1.Docker

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What Can You Use Today?1.Docker2.Travis CI

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What Can You Use Today?1.Docker2.Travis CI or Jenkins + CloudBees Docker Custom Build Environment Plugin

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3.Docker Hub

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3.Docker Hub4.Stackato

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3.Docker Hub4.Stackato or Kubernetes (Azure and Google Cloud offer k8s)

What’s Coming Soon-ish

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Q&A

Matt [email protected]


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Thank you

Matt [email protected]
