Hello everyone 👋. It’s been a while we have met on our blog, So Welcome back! In this blog, we will look at what exactly Docker is, what are images? and How are they different from containers. There will be series of blogs following this one, discussing more on containerized deployment. So let’s jump 🦘.

Docker

Docker is an open source project for automating deployment of applications as portable, self-sufficient containers that can run on the cloud or on-premises.

What is a Docker Image?

A container image (Docker image) is a packaged software with all the dependencies, such that this package can run on multiple platforms or multiple operating systems. A Docker image is a lightweight, standalone and executable package of software that has got every dependency covered in it.

What is a Container 🤔 ?

A container image during it’s run time is called Docker container. Docker containers are built using images, and every change made to the container stays within. A change to a particular container, doesn’t change any other container using the same Docker image. This makes docker image a read-only template i.e. a blue print for its containers.

Why Containerized Deployment?

Containerized Deployment makes it easy to manage our workloads much efficiently. The ability to run on any platform, makes deployment much easier.

The amount of effort that is needed to build a Docker image is very low, because they are tiny and lightweight.

Containers running on development premises can be pushed into production without much effort.

A lot more..!

There’s lot more to know about Docker and how that makes work easy for developers!

So, let’s know everything about Docker, starting from architecture to applications, exploring prebuilt images to creating one. There’s a lot more to explore in our journey, Stay tuned 💯.

Let’s meet again very soon. Until then, stay safe. Cheers ✌.