These slides are presented at DKT- Viet Nam (bizweb)

1. Docker Platform and Ecosystem
VĂN ĐÌNH PHÚC - Docker HaNoi Mentor

2. About Me 
Van Dinh Phuc (Philip Van)
Personal email: Phucvd.ce@gmail.com
Github : @phucvdb
Technology Domain:
◼ Virtualization & Cloud Technologies focus on infrastructure (VDI, EUC, IaaS, PaaS)
◼ Linux Container
◼ Innovation Technologies 
My current job: Cloud Solution Architect – FPT Software

3. Agenda
◼Docker Introduction
◼Ecosystem
◼Docker – Use Case
◼Q&A

4. Docker Introduction

5. Where did you hear about Docker ?
https://medium.com/aws-activate-startup-blog/using-containers-to-build-a-microservices-architecture-6e1b8bacb7d1#.8i6rqwmf3

6. Where did you hear about Docker ? (Cont.)

7. – R. Callon, RFC 1925 - The Twelve Networking Truths
“One size never fits all.”

8. Docker Story
Source: dotcloud.com

9. The Challenge
Source: dotcloud.com

10. The Matrix From Hell
Source: dotcloud.com

11. Cargo Transport Pre-1960
Source: dotcloud.com

12. Also a matrix from hell
Source: dotcloud.com

13. Solution: Intermodal Shipping Container
Source: dotcloud.com

14. Docker is a shipping container system for code
Source: dotcloud.com

15. Docker eliminates the matrix from Hell
Source: dotcloud.com

16. WHAT IS DOCKER ?
Docker containers wrap up a piece of
software in a complete filesystem that
contains everything it needs to run:
code, runtime, system tools, system
libraries – anything you can install on a
server

17. Why Developers Care
◼ Build once…(finally) run anywhere*
◼ A clean, safe, hygienic and portable runtime environment for your app.
◼ No worries about missing dependencies, packages and other pain points during subsequent
deployments.
◼ Run each app in its own isolated container, so you can run various versions of libraries and other
dependencies for each app without worrying
◼ Automate testing, integration, packaging…anything you can script
◼ Reduce/eliminate concerns about compatibility on different platforms, either your own or your
customers.
◼ Cheap, zero-penalty containers to deploy services? A VM without the overhead of a VM? Instant replay
and reset of image snapshots? That’s the power of Docker
Source: dotcloud.com

18. Why Devops Cares?
◼Configure once…run anything
◼ Make the entire lifecycle more efficient, consistent, and repeatable
◼ Increase the quality of code produced by developers.
◼ Eliminate inconsistencies between development, test, production, and customer environments
◼ Support segregation of duties
◼ Significantly improves the speed and reliability of continuous deployment and continuous integration
systems
◼ Because the containers are so lightweight, address significant performance, costs, deployment, and
portability issues normally associated with VMs
Source: dotcloud.com

19. Why it works—separation of concerns
◼ Dan the Developer
◼ Worries about what’s “inside” the
container
◼ His code
◼ His Libraries
◼ His Package Manager
◼ His Apps
◼ His Data
◼ All Linux servers look the same
• Oscar the Ops Guy
• Worries about what’s “outside” the
container
• Logging
• Remote access
• Monitoring
• Network config
• All containers start, stop, copy,
attach, migrate, etc. the same way

20. More technical explanation
◼ High Level—It’s a lightweight VM
◼ Own process space
◼ Own network interface
◼ Can run stuff as root
◼ Can have its own /sbin/init
(different from host)
◼ <<machine container>>
• Low Level—It’s chroot on steroids
• Can also not have its own
/sbin/init
• Container=isolated processes
• Share kernel with host
• No device emulation (neither
HVM nor PV) from host)
• <<application container>>
• Run everywhere
• Regardless of kernel version
(2.6.32+)
• Regardless of host distro
• Physical or virtual, cloud or not
• Container and host architecture
must match*
• Run anything
• If it can run on the host, it can run
in the container
• i.e. if it can run on a Linux kernel,
it can run
WHY WHAT

21. Containers vs. VMs
App
A
Hypervisor (Type 2)
Host OS
Server
Guest
OS
Bins/
Libs
App
A’
Guest
OS
Bins/
Libs
App
B
Guest
OS
Bins/
Libs
AppA’
Docker
Host OS
Server
Bins/Libs
AppA
Bins/Libs
AppB
AppB’
AppB’
AppB’
VM
Container
Containers are isolated,
but share OS and, where
appropriate, bins/libraries
Guest
OS
Guest
OS
…result is significantly faster deployment,
much less overhead, easier migration,
faster restart

22. What is a container?
In 4 bullet points:
◼Containers share the host kernel
◼Containers use the kernel ability to group processes for resource control
◼Containers ensure isolation through namespaces
◼Containers feel like lightweight VMs (lower footprint, faster), but are not Virtual
Machines!
Source: http://docker-saigon.github.io/post/Docker-Internals/

23. Why are Docker containers lightweight?
Bins/
Libs
App
A
Original App
(No OS to take
up space, resources,
or require restart)
AppΔ
Bins/
App
A
Bins/
Libs
App
A’
Guest
OS
Bins/
Libs
Modified App
Copy on write
capabilities allow
us to only save the diffs
Between container A
and container
A’
VMs
Every app, every copy of an app, and every slight
modification of the app requires a new virtual server
App
A
Guest
OS
Bins/
Libs
Copy of
App
No OS. Can
Share bins/libs
App
A
Guest
OS
Guest
OS
VMs Containers

24. Docker Profolio

25. Docker Engine
◼Core of the Docker platform
◼Runs on Linux to create the
operating environment for your
distributed applications
◼in-host daemon communicates
with the Docker client to execute
commands to build, ship and run
containers

26. Docker Engine

27. Docker Registry
There are 3 choices for use of a Registry:
◼A Public Cloud-hosted registry. The Docker Hub is
the default registry used by the docker client and
source of Officially maintained Docker images
◼An On-premise registry, through the
commercially offered Trusted Docker Registry
◼A Self-hosted registry based on the official Open
Source Docker Registry.

28. What are the basics of the Docker system?

29. Changes and Updates

30. Docker Machine
You can use Docker Machine to:
◼Install and run Docker on Mac or Windows
◼Provision and manage multiple remote Docker hosts
◼Provision Swarm clusters

31. Docker Swarm

32. Docker Compose
Developers
docker-compose
up
Cloud or Private Infrastructure
Plugins: Network and Volumes
Operations
Deploy

33. What is the native orchestration tool of Docker?

34. Docker ToolBox
What’s in the Toolbox
◼Docker Engine
◼Compose
◼Machine
◼Kitematic
OS supported: Window & MacOS

35. Docker Cloud
A hosted service for Docker container management and deployment.

36. Docker Universal Control Plane

37. Docker Universal Control Plane (cont.)

38. Docker Ecosystem

39. Docker – Ecosystem support
https://www.mindmeister.com/656846411#slideshow

40. Docker Community @Viet Nam
Official meetup site:
http://meetup.com/Docker-Saigon/
http://www.meetup.com/Docker-Hanoi/
Twitter:
https://twitter.com/docker_saigon
Github:
https://github.com/docker-saigon
https://github.com/dockerhanoi
Youtube:
https://www.youtube.com/channel/UC1t_GbTJudAAK9
Wqkg6-uLw
https://www.youtube.com/channel/UCa1ieffjEYlfRgZTN
l4Cg1A
Facebook:
https://www.facebook.com/DockerSaigon
Slideshare:
http://www.slideshare.net/Docker-Hanoi
Slack:
https://dockersaigon.slack.com
http://docker-hanoi.slack.com
Our interests:
https://docs.google.com/document/d/1lhwK0YIC_KZ4F6o1rr
h4wXfJTqdyplm3TZSIZN0X_UE/edit
https://trello.com/b/KE000r5s/research

41. Docker – Use Case

42. Building a Continuous Integration Pipeline with Docker
https://sreeninet.wordpress.com/2016/01/23/ci-cd-with-docker-jenkins-and-tutum/

43. Build a micro service with Docker
A Docker –Hanoi’s Scenario:
◼At the beginning, Service #1 only runs in Node 2.
◼After that Service #1 scales to Node 2
◼Via Docker API, Registrator will know the appearance of Service #1 on Node
2.
◼Registrator will register Service #1 with Consul.
◼In the meanwhile, Consul-Template in listening Consul. So Consul-
Template will know the new service is up in Node 2. Finally, Consul-
Template will trigger a reload command to Nginx add the new service into
load balancer.
https://www.facebook.com/events/986704731366039/

44. Thanks you !