How To Get Started With Docker Hub


In the IT landscape and software-related fields, it is impossible to not have come across Docker, the limitless possibilities and ease it brings to the automation in the deployment of software packages and products within containers for your operating system freeing you of a lot of hefty work and giving you maximum boot speed. Docker has added Docker Hub to its assortment of services as well now; read on to find out more on how you can get started with Docker Hub and familiarise yourself with its concept and aim.

What Is The Purpose Of Docker Hub?​

Primarily this service aims to provide you with an efficient mechanism to find and share container images amongst your team. It is by far the most extensive repository of container images in the world, which makes it a holy grail for developers allowing them the interact and make use of a wide and diverse variety of content. It also serves as a hosting to a large collection of content sources, open sources software development projects, or ISVs for the development and distribution of code. Docker Hub is the latest and most unique integration by Docker to move towards a more streamlined delivery process and workflow for their users. As these technological advances take the digital world by storm, Nigerian Technology raises $15mln to expand activities which is a tremendous step up in their technological landscape.

The Main Features Provided By Docker Hub:​

  1. Docker Hub CLI tool, which is still in its beta phase alongside an API mechanism to allow fluent interaction with Docker Hub.
  2. Webhooks for amalgamating Docker Hub alongside other services.
  3. Official Docker Images of ensured high quality; if you are a beginner with Docker, this is even more beneficial for you as these images have precise and clear documentation and adhere to software best practices and accepted procedures. Moreover, these are intentionally built and are intended for the most well-known use cases.
  4. Docker Verified Publisher Images that have high-quality container images provided by private vendors.
  5. Repository for efficiently pushing or pulling container images.
  6. A robust internal structure for managing access to private repositories made easy for you.
  7. The most exciting bit is the automated production of images from GitHub or BitBucket pushed, stored, and managed in Docker Hub with each new build.

Step By Step Guide To Get Started With Docker Hub​

If you've been convinced to jump on the Docker Hub bandwagon, this guide will make the process super smooth and easy, just follow along. Before we get into the real intricacies it is beneficial if you in advance have downloaded and installed Docker Desktop, this will make the process easier and more streamlined.

First of all, you need to ensure you have your Docker Account. If not you may sign up. Next, It is important for you to create a Docker ID, this will allow you to explore the Docker Hub crypts and collections of container images and permits you to explore images that are accessibly originating from a community endpoint or endorsed distributors. You'll likewise require a Docker ID to share pictures on Docker Hub.

Proceed to now creating your first repository, you will need to sign in and click on "Create a Repository " displayed on the welcome page of Docker Hub. You may select an appropriate name for your repository. Make sure to set your visibility requirements as per your requirements at this instance as well. You can make your repository public or private as per your need. At this stage, you can link your GitHub to the repository to allow auto-build triggers with every git push. Now click "Create," and you have your repository ready and working.

Now you may Sign in to Docker Desktop with your Docker ID from here onwards. To build and Push a container image to Docker Hub from your local machine, start by first creating a Docker File.

We know that Docker can produce images by perusing the directions from a Dockerfile. A Dockerfile is a text document that contains every one of the mandates curtailed by you. A client could approach the instructions line by line to collect the directions to construct an image. Utilizing automated Docker build functionality clients can make a mechanized form that executes command line instructions in a synchronized and linear progression.

You can do so by the following commands:

# syntax=docker/dockerfile:1
FROM busybox
CMD echo "Hi! I am creating My first Docker image".
Other commands that are basic and you should familiarise yourself with are:

Run the following command to build your Docker image

docker build -t <your_username>/my-private-repo.
Run the following command to test your Docker image locally.

docker run <your_username>/my-private-repo
Run the following command to push your Docker image to Docker Hub.

docker push <your_username>/my-private-repo

Overall, Docker Hub brings about a lot of ease and saves your time, if you plan to work with a team you may add an organization to use Docker Hub with your team, this feature is also available. All your work and builds will also be safe and secure due to the transparent and easy process as the security of data is a primary concern. Read about a recent data selling scandal plaguing one of the biggest social media giants of the modern day here. Once you are fluent and comfortable with the platform you may upgrade your subscription and publish your images publicly on Docker Hub as well you can move towards officiating your organization on Docker Hub to further boost your company's progress.