Docker Use Cases.pdf

A Demonstrative Guide of
Docker Use Cases

3 Common Myths Around Docker
1. Docker is all-or-nothing
Docker is compatible even with an app built on a LAMP stack, given you isolate APIs
and necessary web services.
2. Without the cloud, Docker cannot be implemented
Docker offers various benefits with cloud services, but the requirement of your app
comes first. Just because it provides a virtualized OS, it does not mean you have to
migrate towards the cloud.
3. Security concerns with Docker is high
Docker uses Kernel-level security via virtualized servers. Therefore, Docker is secure
as any other platform can be!

Docker Infrastructure
Docker is a container that functions in the form of Platform-as-a-
Service (PaaS) and focuses on OS-level virtualization.

Benefits of Docker
1. Portability: Easily transfer and publish the same changes in all development machines irrespective of which
team member makes a new addition or a change.
2. Reusability: Reuse components created in one machine on another n number of times as per requirement for
two or more different purposes by forking them as desired.
3. Computing environment isolation: Regardless of the platform the application is deployed, everything, including
the code, dependencies, and more, will stay consistent. Improved productivity considerably!
4. Mobility: Docker is compatible with most used parent platforms like Linux, macOS, and Windows. It can run
anywhere, provided there is one targeted OS.
5. Testing: Docker-based result files are images. These images are versioned and can easily be rolled back for
any iteration.
6. Scaling: Without any massive architecture overhaul, apps with small processes can be built inclusive of internal
API collaborations at scale.

Docker Use Cases for
various industry verticals
1. Healthcare
National Institutes of Health (NIH) have been using
containerization technology, especially Docker, for its mobility
and flexibility in delivering imaging software services to more
than 40 hospitals in the US.
2. Media and entertainment
With the rise of containers, Netflix decided to use Docker and
create its own infrastructure to execute deep functions with
its integrated Amazon EC2 services. This project was called
Titus.

3. Travel
Carnival Corporation is a British-American cruise operator
controlling more than 100 vessels. Docker helps to connect
various elements such as food, beverages, accommodation,
transportation, etc., on its cruise ships. Ultimately this serves
to imitate each cruise ship as a mobile city.
4. FinTech
With the help of containers such as Docker, Knowis is able to
react flexibly to the market requirements. It also leverages
container orchestration via Kubernetes to balance the
workload as well.

5. eCommerce
Alibaba Cloud allows developers to use Docker to run as
many containers as needed instantly and simultaneously
process various operations in a given website in a short time.
6. Education
The foremost benefit, Dockers, brings to the Wiley Education
Services (WES) table is the ability to get one of its websites
up and running in the marketplace in no time. This helps to
connect students with partners faster.

Docker Use Cases for Businesses
1. Adoption of DevOps
DevOps implementation helps build and deploy apps faster, or features,
are known facts. But Docker adds more icing to the cake on that front as
an irreplaceable tool.
2. App infrastructure isolation
With the help of Docker, you can run multiple apps or the same app on
different machines without letting something as versions or other such
factors affect the development process.
3. Multi-tenancy support
When building an application that requires multi-tenancy, the development
process may get complicated given the numerous dependencies and
independent functions involved.

4. Improvement in software testing
Docker reduces the number of attempts required to rerun tests. If tests fail
on the clients’ end, they will also fail on the local machine.
5. Smart Disaster Recovery (DR)
With the help of Docker use cases, you can instantly create and destruct
container tasks as you please. Furthermore, Docker provides possibilities
to commit your data within the container platform before the image file is
transferred to another machine.
6. Continuous rapid deployment
DevOps and Docker together manage to reduce deployment to seconds.
Before Docker, applications built had to be run on the parent server and
environment before making it live on any other environment.

7. Creation of microservices architecture
It is fundamental to be aware of the issue that microservice architecture may
pose regarding dependencies since architecture is broken down into individual
and smaller components.
8. Migration of legacy apps to containers
Docker is not only for advanced application development. Even if your business
has a legacy app, it can be migrated to containers.
9. Simplification of code configuration
The most significant advantage of a VM is its ability to run on any given
platform with its own configuration on top of the infrastructure your app follows.
10. Management of development pipeline
With Docker, the development and deployment pipeline can strictly maintain
consistency in coding, infrastructure creation, and even in the usage of
resources.

11. Increased developer productivity
Since Docker also supports sharing data volumes, it helps make the
application code available on any host OS container even if the
environment is running on a VM.
12. Consolidation of server requirements
The ability to isolate the app and its development environments is a boon
offered by Docker. While it may involve different servers in some cases,
even those can be consolidated to save cost.
13. Porting across cloud providers
There is a rise in the likelihood of migrating your app to the cloud or
creating a cloud-ready app from scratch to implement DevOps
methodologies for your development and deployment processes.

When not to use Docker?
The product is a desktop app

The project is simple and small

The development pipeline involves multiple OSs

The requirement is to only boost app performance

Project needs easily managed technology

The Conclusion
When big companies like The New York Times, PayPal,
Spotify, Uber, and many more, overcome various challenges
by using Docker, other businesses also get the motivation to
employ its use.

In fact, Docker has evolved at such an astonishing pace that
a mere mention of containerization makes us think of
Docker.

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