Dockers have gained a lot of popularity nowadays in the
Information technology field as it is being adopted at a fast rate in the
production environment. Dockers emerged after containerization was introduced
in the application production picture. Before containerization Virtualization
was prevalent to isolate and organize applications, but it was a bulky
method.
Docker is a platform that helps a developer to pack an
application along with its dependencies in one container to make sure the
application works in any environment.
REASONS TO USE DOCKER CONTAINERIZATION
Using Docker Containerization has many benefits over other
methods, such as the ones mentioned below.
- Since
containers have no guest Operation Systems of their own, they can share
required libraries and resources whenever needed using the host’s
operating system.
- Containers
are light in weight as compared to virtual machines and thus make booting
a container very quick.
- It makes
processing applications faster by running the container application-specific
binaries and libraries on the host kernel.
WHAT IS DOCKER?
Docker is an open-source online project platform that
makes containers and container-based applications easier. Earlier it only ran
on Linux, but nowadays it has been updated to run on macOS as well as Windows.
Dockers gave the idea that a process can be run in isolation from the rest of
the operating environment without being affected by other parallel processes.
Docker has made containers more portable and flexible than it was earlier.
ADVANTAGES OF DOCKER
Docker container that runs on docker engines has several
advantages over others such as:
- Docker has
an industry standard and thus can be ported anywhere without facing any
issues.
- Docker
containers are lightweight and do not require a specific operating system
for each application. They provide higher server efficiencies and also
reduce the costs used for servers and licensing.
- Since
Dockers provide the strongest default isolation in the application
industry, applications are much safer in containers.
DOCKER
VS KUBERNETES
Dockers
vs Kubernetes can be
confused with one another at times, but one of the basic differences is that
Kubernetes run across a cluster whereas dockers run on a single node.
Kubernetes can coordinate clusters of nodes together in production in an
efficient manner and this is more extensive than Docker. Both when worked
together can provide amazing benefits when developing applications.
PREREQUISITES FOR DOCKER ONLINE TRAINING
Even though almost anyone interested in developing
applications, can earn docker there are some basic prerequisites for learning
docker
- For a
developer who is already developing applications and knows how to build
and run an application, it is very easy to learn docker. This includes the
basic experience of creating applications using any of the following
technologies.
a.
.NET
Core
b.
Java
c.
Node.JS
d.
PHP
e.
Python
- For others,
all one needs is the basic knowledge of computer science:
- Basic
knowledge of Bash and its working, that is how to handle various files and
folders.
- Basic
knowledge of networking on required Operating Systems such as Linux/Ubuntu
or Windows.
- Apt-get
basics about installing packages
- The basic
working of the operating system
FUTURE SCOPES FOR DOCKER
Two-thirds of all IT companies in the containerized
industry are already using it, with the docker adoption rate being more than 40
percent. The average number of running containers these companies have in
production quintuple this number within 10 months of usage. The frameworks used
in docker container production are PHP, Java, Node, and Ruby making it easier
to adopt, and many large companies such as Paypal, SPotify, and ING are using
docker.
Docker can facilitate savings by reducing the requirement
of infrastructure resources and this has a high return on investment. It also
provides a rapid and continuous development on multi-cloud platforms
CAREER
OPTIONS AFTER DOCKER TRAINING
Being certified in using Docker after doing Docker Online training can open up a
whole new avenue for professionals such as:
a.
DevOps
Engineers
b.
Certified
Docker Practitioners
c.
Cloud
Professionals
d.
Software
Developers
e.
Technical
Leads
f.
Site
Reliability Engineers
g.
Principal
Software Engineers
COURSES
FOR DOCKER
Docker
Online training will teach the
following things upon completion:
a.
Basics
of Containerization
b.
Setting
up Docker Engine
c.
Deploy
and Manage a container
d.
Configure
Logging drives
e.
Create,
store and share docker images
f.
Compose
multi-container applications
g.
Deploy
swarm clusters, Kubernetes pods
h.
Set
up Docker EE
i.
Configure
UCP and DTR for Docker EE
j.
Configure
Network drives
CONCLUSION
There are online platforms that help you to get Docker Online training and build a
career out of it. Being a certified expert in developing applications using
Docker opens up many more avenues for professionals. Being updated and learning
new technologies has always been a boon for developers.