What is Docker ?

1. TRANNING DOCKER
Hieu Hoang – Developer
08/07/2017

2. 2
Introduction to Docker

3. 3
Contents
• The IT Landscape is Changing
• Docker and Container Overview
• Container Solutions & Landscape
• Docker Enterprise Edition

4. 4
TheITLandscapeisChanging
Cloud
Apps
DevOps

5. 5
TugofWarBetweenDevelopersand Ops
Developers IT Operations
• Freedom to createand
deploy apps fast
• Define and package
application needs
• Quickly and flexibly
respond to changingneeds
• Standardize, secure,and
manage

6. 6
OrganizationsMust DealwithDiverse Technology
Bare Metal
Linux
On Premises
Traditional
Virtual
Windows
Cloud
Microservices

7. 7
…andDiverseOrganizations
Developers IT Operations
• Freedom to createand
deploy apps fast
• Define and package
application needs
• Quickly and flexibly
respond to changingneeds
• Standardize, secure,and
manage

8. 8
DockerandContainer Overview

9. 9
HistoryofDocker
2004
Solaris Containers /
Zones technology
introduced
2008
Linux containers
(LXC 1.0)
introduced
2013
Solomon Hykes
starts Docker as an
internal project
within dotCloud
Mar 2013
Docker released
to open source
Feb 2016
Docker introduces first
commercial product – now
called Docker Enterprise
Edition
Today
Open source communityincludes:
- 3,300+ contributors
- 43,000+ stars
- 12,000+ forks

10. 10
TheDockerFamilyTree
Community Edition
Enterprise Edition
Open source frameworkfor
assembling core
components that make a
container platform Free, community-supported
product for delivering a
container solution
Subscription-based,
commercially supported
products for delivering a
secure software supply chain
Intended for:
Production deployments +
Enterprise customers
Intended for:
Software dev & test
Intended for:
Open source contributors +
ecosystem developers

11. 11
A HistoryLesson
One application on one physical
server

12. 12
Historicallimitationsof applicationdeployment
• Slow deployment times
• Huge costs
• Wasted resources
• Difficult to scale
• Difficult to migrate
• Vendor lock in

13. 13
A HistoryLesson
Hypervisor-based Virtualization
• One physical server can contain multiple applications
• Each application runs in a virtual machine (VM)

14. 14
LimitationsofVMs
• Each VM stills requires
– CPU allocation
– Storage
– RAM
– An entire guest operating system
• The more VMs you run, the more resources you need
• Guest OS means wasted resources
• Application portability not guaranteed

15. 15
What is acontainer?
• Standardized packaging for
software and dependencies
• Isolate apps from each other
• Share the same OS kernel
• Works with all major Linux and
Windows Server

16. 16
ComparingContainersandVMs
Containers are an app
level construct
VMs are an infrastructure level
construct to turn one machine
into many servers

17. 17
Containersand VMstogether
Containers and VMs together provide a tremendous amount of
flexibility for IT to optimally deploy and manage apps.
DEV
PROD

18. 18
KeyBenefitsof DockerContainers
Speed
• No OS to boot =
applications
online in seconds
Portability
• Less
dependencies
between process
layers = ability to
move between
infrastructure
Efficiency
• Less OS
overhead
• Improved VM
density

19. 19
Container Solutions& Landscape

20. 20
DockerBasics
Image
The basis of a Docker container. The content atrest.
Container
The image when it is ‘running.’ The standard unit for app service
Engine
The software that executes commands for containers. Networking and volumes are
part of Engine. Can be clustered together.
Registry
Stores, distributes and manages Dockerimages
Control Plane
Management plane for container and clusterorchestration

21. 21
DockerEnterprise Edition

22. 22
Docker Aligns to Multiple IT Initiatives
80%
Looking at Dockerfor
Cloud Strategy
3 out 4
Top initiatives are app
modernization
44%
Looking to adopt DevOps
with Docker
Apps
DevOpsCloud
State of App development Survey: Q1 2016

23. 23
DockerIsintheEnterprise
Service
Provider
Tech
Public
Sector
Insurance
Healthcare
& Science
Financial
Services

24. EXAMPLE

25. THANKSTO LISTEN!