This presentation on Docker Container will help you understand what is Docker, the architecture of Docker, what is a Docker Container, how to create a Docker Container, benefits of Docker Container, basic commands of Containers and you will also see a demo on creating Docker Container. Docker is a very lightweight software container and containerization platform. Docker containers provide a way to run software in isolation. It is an open source platform that helps to package an application and its dependencies into a Docker container for the development and deployment of software and a Docker COntainer is a portable executable package which includes applications and their dependencies. With Docker Containers, applications can work efficiently in different computer environments. Below DevOps tools are explained in this Docker Container presentation: 1. What is Docker? 2. The architecture of Docker? 3. What is a Docker Container? 4. How to create a Docker Container? 5. Benefits of Docker Containers 6. Basic commands of Containers Simplilearn's DevOps Certification Training Course will prepare you for a career in DevOps, the fast-growing field that bridges the gap between software developers and operations. You’ll become an expert in the principles of continuous development and deployment, automation of configuration management, inter-team collaboration and IT service agility, using modern DevOps tools such as Git, Docker, Jenkins, Puppet and Nagios. DevOps jobs are highly paid and in great demand, so start on your path today. Why learn DevOps? Simplilearn’s DevOps training course is designed to help you become a DevOps practitioner and apply the latest in DevOps methodology to automate your software development lifecycle right out of the class. You will master configuration management; continuous integration deployment, delivery and monitoring using DevOps tools such as Git, Docker, Jenkins, Puppet and Nagios in a practical, hands-on and interactive approach. The DevOps training course focuses heavily on the use of Docker containers, a technology that is revolutionizing the way apps are deployed in the cloud today and is a critical skillset to master in the cloud age. After completing the DevOps training course you will achieve hands-on expertise in various aspects of the DevOps delivery model. The practical learning outcomes of this Devops training course are: An understanding of DevOps and the modern DevOps toolsets The ability to automate all aspects of a modern code delivery and deployment pipeline using: 1. Source code management tools 2. Build tools 3. Test automation tools 4. Containerization through Docker 5. Configuration management tools 6. Monitoring tools DevOps jobs are the third-highest tech role ranked by employer demand on Indeed.com but have the second-highest talent deficit. Learn more at https://www.simplilearn.com/cloud-computing/devops-practitioner-certification-training

2. Why Docker Container?
Standard Machine
Bins/Libs
App A App CApp B
Host OS
Infrastructure

3. Why Docker Container?
App A
Bins/Libs
App B
Bins/Libs
Guest OS Guest OS
Virtual
Machine 1
Virtual
Machine 2
Virtual
Machine 3
Bins/LibsBins/Libs
Guest OS
App B
Bins/Libs
Guest OS
Bins/Libs
Standard Machine Virtual Machine
Hypervisor
Host OS
Infrastructure
Bins/Libs
App A App CApp B
Host OS
Infrastructure

4. Why Docker Container?
Docker
Container 1
App A
Bins/Libs
App B
Bins/Libs
Guest OS Guest OS
Virtual
Machine 1
Virtual
Machine 2
Virtual
Machine 3
Bins/LibsBins/Libs
Guest OS
App B
Bins/Libs
Guest OS
Bins/Libs App A
Bins/Libs
App C
Bins/Libs
App B
Bins/Libs
Docker
Container 2
Docker
Container 3
Standard Machine Virtual Machine Docker Container
Docker Engine
Host OS
Infrastructure
Hypervisor
Host OS
Infrastructure
Bins/Libs
App A App CApp B
Host OS
Infrastructure

5. Why Docker Container?
Docker
Container 1
App A
Bins/Libs
App B
Bins/Libs
Guest OS Guest OS
Virtual
Machine 1
Virtual
Machine 2
Virtual
Machine 3
Bins/LibsBins/Libs
Guest OS
App B
Bins/Libs
Guest OS
Bins/Libs App A
Bins/Libs
App C
Bins/Libs
App B
Bins/Libs
Docker
Container 2
Docker
Container 3
Virtual Machine Docker Container
Docker Engine
Host OS
Infrastructure
Hypervisor
Host OS
Infrastructure
Bins/Libs
App A App CApp B
Host OS
Infrastructure
Standard Machine

6. Why Docker Container?
Docker
Container 1
App A
Bins/Libs
App B
Bins/Libs
Guest OS Guest OS
Virtual
Machine 1
Virtual
Machine 2
Virtual
Machine 3
Bins/LibsBins/Libs
Guest OS
App B
Bins/Libs
Guest OS
Bins/Libs App A
Bins/Libs
App C
Bins/Libs
App B
Bins/Libs
Docker
Container 2
Docker
Container 3
Standard Machine Virtual Machine Docker Container
Docker Engine
Host OS
Infrastructure
Hypervisor
Host OS
Infrastructure
Bins/Libs
App A App CApp B
Host OS
Infrastructure
Note: Application A works fine along with its dependency (Bins/Libs), but Application B and C will not work as it doesn’t
have its dependencies

7. Why Docker Container?
Docker
Container 1
App A
Bins/Libs
App B
Bins/Libs
Guest OS Guest OS
Virtual
Machine 1
Virtual
Machine 2
Virtual
Machine 3
Bins/LibsBins/Libs
Guest OS
App B
Bins/Libs
Guest OS
Bins/Libs App A
Bins/Libs
App C
Bins/Libs
App B
Bins/Libs
Docker
Container 2
Docker
Container 3
Standard Machine Virtual Machine Docker Container
Docker Engine
Host OS
Infrastructure
Hypervisor
Host OS
Infrastructure
Bins/Libs
App A App CApp B
Host OS
Infrastructure
Note: Guest OS occupies more space and leads to unstable performance

8. Why Docker Container?
App A
Bins/Libs
App B
Bins/Libs
Guest OS Guest OS
Virtual
Machine 1
Virtual
Machine 2
Virtual
Machine 3
Bins/LibsBins/Libs
Guest OS
App B
Bins/Libs
Guest OS
Bins/Libs
Docker
Container 1
App A
Bins/Libs
App C
Bins/Libs
App B
Bins/Libs
Docker
Container 2
Docker
Container 3
Standard Machine Virtual Machine Docker Container
Docker Engine
Host OS
Infrastructure
Hypervisor
Host OS
Infrastructure
Bins/Libs
App A App CApp B
Host OS
Infrastructure
Note: Unlike Virtual machine, Containers are efficient and are easily portable across different platforms

9. Why Docker Container?
App A
Bins/Libs
App B
Bins/Libs
Guest OS Guest OS
Virtual
Machine 1
Virtual
Machine 2
Virtual
Machine 3
Bins/LibsBins/Libs
Guest OS
App B
Bins/Libs
Guest OS
Bins/Libs
Standard Machine Virtual Machine Docker Container
Docker Engine
Host OS
Infrastructure
Hypervisor
Host OS
Infrastructure
Bins/Libs
App A App CApp B
Host OS
Infrastructure
Hypervisor
Docker
Container 1
App A
Bins/Libs
App C
Bins/Libs
App B
Bins/Libs
Docker
Container 2
Docker
Container 3

10. Why Docker Container?
Docker
Container 1
Docker Engine
Host OS
Infrastructure
App A
Bins/Libs
App C
Bins/Libs
App B
Bins/Libs
Docker
Container 2
Docker
Container 3
Docker
Container 1
Docker Engine
Host OS
Infrastructure
Docker
Container 2
Docker
Container 3
For example:

11. Let’s take an example where a company develops a Java Application
Why Docker Container?
A developer will setup a JBoss
software on his system
Developer

12. Let’s take an example where a company develops a Java Application
Why Docker Container?
A developer will setup a JBoss
software on his system
After the application is
developed, it is examined by the
testing team
Here, the tester repeats the
installation process of JBoss
Developer Tester

13. Let’s take an example where a company develops a Java Application
Why Docker Container?
A developer will setup a JBoss
software on his system
After the application is
developed, it is examined by the
testing team
Here, the tester repeats the
installation process of JBoss
To host the Java application,
the system admin also has to
install JBoss on his system
Developer Tester System admin
Once the application is tested, it will
be deployed by the production team

14. Let’s take an example, where a company develops a Java Application
In order to do so a software programmer
will setup an JBoss server on his system
After the application is developed
it has to be tested by the testing
team
For which the tester will have to
repeat the set up process of JBoss
in order to test the application
As soon the testing is finished, it will be
deployed to the production team
Once again the production team
requires an environment with JBoss
installed on their system, so that it
can host the Java application
Developer Tester Production
Why is the same
Jboss installation
done thrice??
Why Docker Container?

15. Let’s take an example, where a company develops a Java Application
In order to do so a software programmer
will setup an JBoss server on his system
After the application is developed
it has to be tested by the testing
team
For which the tester will have to
repeat the set up process of JBoss
in order to test the application
As soon the testing is finished, it will be
deployed to the production team
Once again the production team
requires an environment with JBoss
installed on their system, so that it
can host the Java application
Developer Tester Production
due to the difference in computer
environments, Jboss doesn’t work on
the other systems, so installation is
done separately on three different
Why Docker Container?

16. Let’s take an example, where a company develops a Java Application
In order to do so a software programmer
will setup an JBoss server on his system
After the application is developed
it has to be tested by the testing
team
For which the tester will have to
repeat the set up process of JBoss
in order to test the application
As soon the testing is finished, it will be
deployed to the production team
Once again the production team
requires an environment with JBoss
installed on their system, so that it
can host the Java application
Developer Tester Production
But this process
consumes a lot time and
effort. can there be an
alternate way to this?
due to the difference in computer
environments, Jboss doesn’t work on
the other systems, so installation is
done separately on three different
computers
Why Docker Container?

17. Let’s take an example, where a company develops a Java Application
In order to do so a software programmer
will setup an JBoss server on his system
After the application is developed
it has to be tested by the testing
team
For which the tester will have to
repeat the set up process of JBoss
in order to test the application
As soon the testing is finished, it will be
deployed to the production team
Once again the production team
requires an environment with JBoss
installed on their system, so that it
can host the Java application
Developer Tester Production
But this process
consumes a lot time and
effort. can there be an
alternate way to this?
due to the difference in computer
environments, Jboss doesn’t work on
the other systems, so installation is
done separately on three different
computers
Why not try Docker
Containers?
Why Docker Container?

18. What’s in it for you?
 What is Docker?
 Architecture of Docker
 What is a Docker Container?
 How to create a Docker Container?
 Benefits of Docker Containers
 Basic Commands of Containers
 Demo
Let’s get started

19. What is Docker?

20. What is Docker?
Docker is an open source platform that helps a user to package an application and it’s dependencies into a
Docker Container for the development and deployment of software
Docker Container

21. What is Docker?
Docker is an open source platform that helps a user to package an application and it’s dependencies into a
Docker Container for the development and deployment of software
Build
Developer
Ship
Docker Container
Run
Tester

22. What is Docker?
Docker is an open source platform that helps a user to package an application and it’s dependencies into a
Docker Container for the development and deployment of software
Build
Developer
Ship
Docker Container
Run
Tester
Before starting with Docker
containers, let’s understand
the architecture of Docker

23. Architecture of Docker

24. Architecture of Docker
Docker Client
Docker Host
Docker Daemon
Docker Registry
ImagesContainer
Container
REST API
Docker Client
Docker Daemon
REST API
Docker Engine

25. Architecture of Docker
Docker Client
Docker Host
Docker Daemon
Docker Registry
ImagesContainer
Container
REST API
Docker Client is a service which uses
REST API to send commands to
Docker Daemon through CLI
commands

26. Architecture of Docker
Docker Client
Docker Host
Docker Daemon
Docker Registry
ImagesContainer
Container
REST API
Docker Client is a service which uses
REST API to send commands to
Docker Daemon through CLI
commands
Docker Daemon checks the client
request and communicates with the
Docker components in order to
perform a service

27. Architecture of Docker
Docker Client
Docker Host
Docker Daemon
Docker Registry
ImagesContainer
Container
REST API
Docker Client is a service which uses
REST API to send commands to
Docker Daemon through CLI
commands
Docker Daemon checks the client
request and communicates with the
Docker components in order to
perform a service
A Docker Image is a file of instructions
which is used to create Containers

28. Architecture of Docker
Docker Client
Docker Host
Docker Daemon
Docker Registry
ImagesContainer
Container
REST API
Docker Container is a portable
executable package which includes
applications and their dependencies

29. Architecture of Docker
Docker Client
Docker Host
Docker Daemon
Docker Registry
ImagesContainer
Container
REST API
Docker Container is a portable
executable package which includes
applications and their dependencies
Docker Registry is a service used for
hosting and distributing Docker
images among users

30. What is a Docker Container?

31. What is a Docker Container?
• Docker Container is an executable software package that includes all dependencies (frameworks, libraries, etc.)
required to execute an application
• With Docker Containers, applications can work efficiently in different computer environments
Docker Container

32. What is a Docker Container?
• Docker Container is an executable software package that includes all dependencies (frameworks, libraries, etc.)
required to execute an application
• With Docker Containers, applications can work efficiently in different computer environments
Applications run in isolation
Docker Container

33. What is a Docker Container?
• Docker Container is an executable software package that includes all dependencies (frameworks, libraries, etc.)
required to execute an application
• With Docker Containers, applications can work efficiently in different computer environments
Applications run in isolation
Occupies less space
Docker Container

34. What is a Docker Container?
• Docker Container is an executable software package that includes all dependencies (frameworks, libraries, etc.)
required to execute an application
• With Docker Containers, applications can work efficiently in different computer environments
Applications run in isolation
Lightweight
Occupies less space
Docker Container

35. What is a Docker Container?
• Docker Container is an executable software package that includes all dependencies (frameworks, libraries, etc.)
required to execute an application
• With Docker Containers, applications can work efficiently in different computer environments
Applications run in isolation
Lightweight
Secure
Occupies less space
Docker Container

36. What is a Docker Container?
• Docker Container is an executable software package that includes all dependencies (frameworks, libraries, etc.)
required to execute an application
• With Docker Containers, applications can work efficiently in different computer environments
Applications run in isolation
Lightweight
Secure
PortableOccupies less space
Docker Container

37. What is a Docker Container?
• Docker Container is an executable software package that includes all dependencies (frameworks, libraries, etc.)
required to execute an application
• With Docker Containers, applications can work efficiently in different computer environments
Applications run in isolation
Lightweight
Secure
Portable
Short boot-up time
Occupies less space
Docker Container

38. How to create a Docker Container?

39. How to create a Docker Container?
Docker
File
Docker Image
Note: A Docker File is a text file which contains commands for building a Docker Image
• Docker File creates a Docker Image using the build command

40. How to create a Docker Container?
Docker
File
Docker Image
Project code
• Docker File creates a Docker Image using the build command
• A Docker Image contains of all the project’s code

41. How to create a Docker Container?
Docker
File
Docker
Container
Docker Image
• Docker File creates a Docker Image using the build command
• A Docker Image contains of all the project’s code
• With Docker Image, a user can run the code in order to create Docker Containers
Note: Command to run a Docker Container is Docker run <image-id>

42. How to create a Docker Container?
Docker
File
Docker
Container
Docker Image
Docker Registry
• Once the Docker Image is created, it can be stored in the Docker Registry using Docker push command (Docker
push image_name)

43. How to create a Docker Container?
Docker
File
Docker
Container
Docker Image
Docker Registry
Docker Hub
Repository
• Once the Docker Image is created, it can be stored in the Docker Registry using Docker push command (Docker
push image_name)
• When a Docker Image is created, it gets stored in a Docker Hub or in a Repository

44. How to create a Docker Container?
Docker
File
Docker
Container
Docker Image
Note: Docker also has its own default Registry called Docker Hub
Docker Registry
Docker Hub
Repository
• Once the Docker Image is created, it can be stored in the Docker Registry using Docker push command (Docker
push image_name)
• When a Docker Image is created, it gets stored in a Docker Hub or in a Repository

45. How to create a Docker Container?
Docker
File
Docker
Container
Docker Image
Docker Hub
Repository
Docker Registry
• There are multiple Docker images available in the registry and all can be retrieved through the Docker pull
command (e.g. Docker pull image_name)
Note: In Docker Registry, repository is a collection of Docker Images

46. • There are multiple Docker images available in the registry and all can be retrieved through the Docker pull
command (e.g. Docker pull image_name)
• Once a Docker Image is retrieved from the Docker Registry, a user can build new Containers
How to create a Docker Container?
Docker
File
Docker
Container
Docker Image
Container
Container
Docker Registry

47. • There are multiple Docker images available in the registry and all can be retrieved through the Docker pull
command (e.g. Docker pull image_name)
• Once a Docker Image is retrieved from the Docker Registry, a user can get the Docker Image and build new
Containers
How to create a Docker Container?
Docker
File
Docker
Container
Docker Image
Container
Container
Docker Registry
Now, Let’s create a Container using
basic Docker commands

48. How to create a Docker Container?
Docker Daemon
Docker Registry
REST API
Image
Docker Host
Note: Docker uses Docker images to run your code, not the Dockerfile
build
push
In Docker, a Dockerfile is used to
build the image using build
command and that image is stored
into the registry using push
command
Docker Client
Build
Push
Pull
Run

49. How to create a Docker Container?
When you run pull command, Docker
Image (NGNIX) is retrieved from the
registry
Docker Daemon
Docker Registry
REST API
pull
Image
Image
Docker Host
Docker Client
Build
Push
Pull
Run
push
In Docker, a Dockerfile is used to
build the image using build
command and that image is stored
into the registry using push
command
build

50. How to create a Docker Container?
Finally, a single Container (NGNIX) is
built using Docker Image through the
run command
Docker Daemon
Docker Registry
REST API
pull
Image
ImageContainer
run
Docker Client
Docker Host
Build
Push
Pull
Run
push
In Docker, a Dockerfile is used to
build the image using build
command and that image is stored
into the registry using push
command
When you run pull command, Docker
Image (NGNIX) is retrieved from the
registry
build

51. How to create a Docker Container?
DID YOU KNOW?
• When a Container is created, a new layer is formed on top of the Docker Image layers called Container
layer
• Each Container has a separate (R/W) Container layer and any changes made in a Docker Container is
reflected upon the particular Container layer
• In case a Container is deleted, the Container layer also gets deleted
Note: Docker Image has multiple image layers and each Image layer is created by executing each command in the Dockerfile

52. Benefits of Containers

53. Benefits of Containers
Containers have no external
dependency for applications
to run

54. Benefits of Containers
Container
Containers have no external
dependency for applications
to run
As Containers are light-weight, they are
easily shipped (deployed) to other
computers and get executed on other
computer environments regardless of
their host operating systems

55. Benefits of Containers
Containers have no external
dependency for applications
to run
Data volumes can be shared
and reused among multiple
ContainersContainer
As Containers are light-weight, they are
easily shipped (deployed) to other
computers and get executed on other
computer environments regardless of
their host operating systems

56. Benefits of Containers
Data volumes can be shared
and reused among multiple
Containers
As Containers are light-weight, they are
easily shipped (deployed) to other
computers and get executed on other
computer environments regardless of
their host operating systems
Container
Containers run applications in
isolation and also share the OS
kernel with other Containers
os
Containers have no external
dependency for applications
to run

57. Is it possible to run multiple
Containers together without the
need to start each one
individually?Well, it’s possible with Docker
compose !

58. Docker Compose
Docker Compose can be used to run multiple Containers in a single service
For example
Consider an instance where you have an application which requires Apache Tomcat and
redis. Now, you can easily create one Docker Compose file to run both Containers in a
single service
Docker
Compose file

59. Basic Docker Container commands

60. Basic Docker Container commands
Basic commands for Docker
• Docker Container commit
• Docker Container cp
• Docker Container prune
• Docker Container kill
• Docker Container exec
• Docker Container ls
• Docker Container rm
• Docker Container restart
- Command to create a new Docker image from the changes made in Container
- Command to copy files between the local filesystem and a Docker Container
- Command to remove all stopped Containers
- Command to terminate one or more running Containers
- Command to run a new command in a running Container
- Command to list Docker Containers
- Command to remove one or more Containers
- Command to restart one or more Containers

61. Other fields that use Blockchain
Blockchain has been used in other industries as well. Some examples of this are:
To ease the verification
of documents
To stop music piracy and to
compensate artists for
purchased songs
Data integrity can be
guaranteed. There cannot
be a single point of failure
Verification of identity of
employee, history, etc.
Payment and benefit
process validation
Travel Music Cybersecurity Human Resources