Docker In Cloud Computing – A Simple Overview (2021)

Ajay Ohri


To know what is docker in cloud computing, first, we need to understand what containers are in the cloud environment. A container is an executable part of the software that is embedded with application code and libraries and dependencies to run anywhere, be it on desktop or cloud. A container in cloud computing is used to build blocks, which help in producing operational efficiency, developer productivity, and environmental consistency. Containers are small, fast, and portable. Because of this, the user is assured of reliability, consistency, and quickness regardless.

  1. What is Docker in Cloud Computing?
  2. How does Docker Work
  3. Reason for using Docker
  4. Why Companies Embrace Docker

1) What is Docker in Cloud Computing?

Docker in cloud computing is a tool that is used to automate the deployment of applications in an environment designed to manage containers. It is a container management service. These containers help applications to work while they are being shifted from one platform to another. Docker’s technology is distinctive because it focuses on the requirements of developers and systems. This modern technology enables enterprises to create and run any product from any geographic location.

There are several problems associated with cloud environments and tries to solve those issues by creating a systematic way to distribute and augment the application. It helps to separate the applications from other containers resulting in a smooth flow. As its job, it is possible to manage our infrastructure, in the same ways we use to manage our applications, with the help of Docker. 

2) How does Docker Work

A docker container image is structured in terms oflayers.’

Example: A process for building image

  1. Start with a base image
  2. Load software desired
  3. Commit base image software to form a new image
  4. The new image can then be the base for more software
  5. Image is what is transferred.
  • Components of Docker Software
  1. Software
  2. Objects
  3. Registry

3) Reason for using Docker

Listed below are some of the benefits of Docker container:

  1. Tailor-made: Most industries want to use a purpose-built. The Docker in cloud computing enables its clients to make use of Docker to organize their software infrastructure. 
  2. Accessibility: As the docker is a cloud framework, it is accessible from anywhere, anytime. Has high efficiency.
  3. Operating System Support: It takes less space. They are lightweight and can operate several containers simultaneously.
  4. Performance: Containers have better performance as they are hosted in a single docker engine.
  5. Speed: No requirement for OS to boot. Applications are made online in seconds. As the business environment is constantly changing, technological up-gradation needs to keep pace for smoother workplace transitions. Docker helps organizations with the speedy delivery of service.
  6. Flexibility: They are a very agile container platform. It is deployed easily across clouds, providing users with an integrated view of all their applications across different environments. Easily portable across different platforms.
  7. Scalable: It helps create immediate impact by saving on recoding time, reducing costs, and limiting the risk of operations. Containerization helps scale easily from the pilot stage to large-scale production.
  8. Automation: Docker works on Software as a service and Platform as a service model, which enables organizations to streamline and automate diverse applications. Docker improves the efficiency of operations as it works with a unified operating model.
  9.  Space Allocation: Data volumes can be shared and reused among multiple containers. 

Even though there are a lot of benefits associated with docker, it has some limitations as well, which are as follows:

  1. Missing Features: Many features like container self-registration and self-inspects are in progress.
  2. Provide cross-platform compatibility: One of the issues in docker is if an application is designed to run for windows, then it cannot work on other operating systems.

4) Why Companies Embrace Docker

Enterprises can adopt this modern strategy of working to grow their business and hence, achieve heights of success. The first reason why docker is good is due to the return on investment. Docker can help in reducing infrastructure resources. The nature of Docker is that it requires fewer resources that are necessary to run the same application.

Security is a primary concern for all organizations, and Docker specifically takes care in this regard so that security is not breached. 

One of the biggest advantages of a Docker-based framework is standardization. Standardizing service infrastructure allows every team member to work in a parity environment. This helps engineers to analyze and fix bugs within the application efficiently. Docker delivers agility, resiliency, portability, security, and cost savings for all applications.


Docker in cloud computing security has undoubtedly taken a revolutionary step towards the management of deployment platforms. A container is a lightweight virtual machine that provides address space, network, and file isolation. Big corporations like AT&T, Verizon, Visa, Metlife, to name a few, are all using the services of docker. This itself speaks for their acceptability. In this modern age, time is of the essence, and docker, with its virtualization framework, streamlines the workflow for organizations.

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