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PRESENTED BY:-

Yansi Keim & Khushboo

B.Tech (Information Technology)

VIII Semester

01120703111 & 0920703111

MENTOR:-

Mr. Mahesh Saini

Asst. Professor

Department of Information Technology

1

2. Challenges to I.T.

3. Solution through Docker

4. How they work

5. Why Docker and Container matters

6. Docker Today

7. References

CONTENTS

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2

Fig.1

Docker an idea deriving from ship used for building, shipping and running services

OBJECTIVE

To run a distributed college app on Docker engine,

pushing the content in the repository

hence enabling multiple users to pull and providing access.

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1. Aim/Objective

3. Solution through Docker

4. How they work

5. Why Docker and Container matters

6. Docker Today

7. References

CONTENTS

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4

Market View: Evolution of IT

1995 2015

Running on any available set of

physical resources (public/private/

virtualized)

Assembled by developers using

best available services

Thin app on mobile, tablet Thick, client-server app

on thick client

Well-defined stack: - O/S - Runtime - Middleware

Monolithic Physical

Infrastructure 5

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Challenges

2015

How to ensure services interact consistently,

avoid dependency hell

How to migrate & scale quickly, ensure compatibility

How to avoid n X n different configs

Running on any available set of

physical resources (public/private/

virtualized)

Assembled by developers using

best available services

Thin app on mobile, tablet

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Static website

Web frontend

User DB

Queue Analytics DB

Background workers

API endpoint

nginx 1.5 + modsecurity + openssl + bootstrap 2

postgresql + pgv8 + v8

hadoop + hive + thrift + OpenJDK

Ruby + Rails + sass + Unicorn

Redis + redis-sentinel

Python 3.0 + celery + pyredis + libcurl + ffmpeg + libopencv + nodejs +

phantomjs

Python 2.7 + Flask + pyredis + celery + psycopg + postgresql-client

Development VM

QA server

Public Cloud

Disaster recovery

Contributor’s laptop

Production Servers

The Challenge M

ult

iplic

ity

of

Stac

ks

Mu

ltip

licit

y o

f h

ard

war

e

en

viro

nm

en

ts Production Cluster

Customer Data Center

Do

service

s and

app

s in

teract

app

rop

riately?

Can

I migrate

smo

oth

ly and

q

uickly?

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Results in N X N compatibility nightmare

Static website

Web frontend

Background workers

User DB

Analytics DB

Queue

Development

VM QA Server

Single Prod

Server

Onsite

Cluster Public Cloud

Contributor’s

laptop

Customer

Servers

? ? ? ? ? ? ?

? ? ? ? ? ? ?

? ? ? ? ? ? ?

? ? ? ? ? ? ?

? ? ? ? ? ? ?

? ? ? ? ? ? ?

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Copyright @ CBPGECJ

1. Aim/Objective

2. Challenges to I.T.

4. How they work

5. Why Docker and Container matters

6. Docker Today

7. References

CONTENTS

Copyright @ CBPGECJ

9

Static website Web frontend User DB Queue Analytics DB

Development

VM QA server Public Cloud Contributor’s

laptop

Docker is a shipping container system for code M

ult

iplic

ity

of

Stac

ks

Mu

ltip

licit

y o

f h

ard

war

e en

viro

nm

en

ts

Production

Cluster Customer Data

Center

Do

services and

app

s in

teract ap

pro

priately?

Can

I migrate

smo

oth

ly and

qu

ickly

…that can be manipulated using

standard operations and run

consistently on virtually any

hardware platform

An engine that enables any

payload to be encapsulated

as a lightweight, portable,

self-sufficient container…

10

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Mu

ltip

licit

y o

f St

acks

M

ult

iplic

ity

of

har

dw

are

e

nvi

ron

me

nts

Do

service

s and

app

s in

teract

app

rop

riately?

Can

I migrate

smo

oth

ly and

q

uickly?

Static website

Web frontend

Background workers

User DB

Analytics DB

Queue

Development

VM QA Server

Single Prod

Server

Onsite

Cluster Public Cloud

Contributor’s

laptop

Customer

Servers

Docker solves the NXN problem

11

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1. Aim/Objective

2. Challenges to I.T.

3. Solution through Docker

5. Why Docker and Container matters

6. Docker Today

7. References

CONTENTS

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12

Work Flow in the System

Source Code

Repository

Dockerfile For A

Docker Engine

Docker Container

Image Registry

Build

Do

cker

Host 2 OS 2 (Linux)

Co

ntain

er A

Co

ntain

er B

Co

ntain

er C

Co

ntain

er A

Push

Search Pull

Run

Host 1 OS (Linux)

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Changes and Updates

Docker Engine

Docker Container

Image Registry

Docker Engine

Push

Update

Bins/ Libs

App A

Ap

p Δ

B

ins/

Base Container

Image

Host is now running A’’

Container Mod A’’

Ap

p Δ

B

ins/

Bins/ Libs

App A

B

ins/

Bins/ Libs

App A’’

Host running A wants to upgrade to A’’. Requests update. Gets only diffs

Container Mod A’

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1. Aim/Objective

2. Challenges to I.T.

3. Solution through Docker

4. How they work

6. Docker Today

7. References

CONTENTS

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15

Application running on a Docker Engine

Application running on Virtual Machine

Why containers matter

Physical Containers Docker Container

Content Agnostic The same container can hold almost any type of payload

Can encapsulate any payload and its dependencies

Hardware Agnostic Standard shape and interface allow same container to move from ship to train to

semi-truck to warehouse to crane without being modified or opened

Using operating system primitives (e.g. Linux container, LXC) can run consistently on

virtually any hardware—VMs, bare metal, openstack, public IAAS, etc.—without

modification

Content Isolation and Interaction

Containers can be stacked and shipped together

Resource, network, and content isolation. Avoids dependency hell

Automation Standard interfaces make it easy to automate loading, unloading, moving, etc.

Standard operations to run, start, stop, commit, search, etc. Perfect for devops: CI,

CD, autoscaling, hybrid clouds

Highly efficient No opening or modification, quick to move between waypoints

Lightweight, virtually no perf or start-up penalty, quick to move and manipulate

Separation of duties Shipper worries about inside of box, carrier worries about outside of box

Developer worries about code. Ops worries about infrastructure.

16

Copyright @ CBPGECJ

1. Aim/Objective

2. Challenges to I.T.

3. Solution through Docker

4. How they work

5. Why Docker and Container matters

7. References

CONTENTS

Copyright @ CBPGECJ

17

Docker Today in I.T. Market

• Launched in March 2013 by dotCloud.

• 19,000+ GitHub stars

• 100M+ Docker Engine downloads

• 75,000+ "Dockerized" applications in the Docker Hub Registry

• 150+ Docker Meetup Groups in 50 countries including Banaglore in India

• 770+ community contributors

• 50,000 third-party projects on GitHub using Docker as well as partnerships

spanning PaaS, operating systems, hosting services, CI platforms, and more.

• Over 100 user-generated case studies available from companies such as eBay,

Rackspace, New Relic, Gilt, Spotify, Cloudflare, Yandex, Cambridge Healthcare,

Yelp and RelatelQ.

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1. Aim/Objective

2. Challenges to I.T.

3. Solution through Docker

4. How they work

5. Why Docker and Container matters

6. Docker Today

CONTENTS

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19

• http://blogs.forrester.com/charlie_dai/14-06-10-docker_will_disrupt_virtualization_and_drive_cloud_adoption_0

• http://www.infoworld.com/article/2609888/virtualization/docker-challenges-virtualization-market-with-containers.html

• http://www.computerworlduk.com/news/open-source/3524619/docker-containers-to-take-a-bite-out-of-virtualisation-market-says-forrester/

• https://www.dotcloud.com/

• http://www.meetup.com/Docker-Bangalore

• http://www.liquidweb.com/kb/how-to-install-docker-on-ubuntu-14-04-lts/

References

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