Category Archives: Docker

How to tag Docker images?

If you have been working with Docker containers and images for quite a while now, you might have tons of images already in your local machine. In fact, some of these Docker images might even be from the same repository. For example, you might have fedora images with different versions such as 24, 26, latest, etc. Managing such… Read More »

How to search Docker Images using CLI?

The Docker official registry called Dockerhub contains a plethora of official as well as vendor-specific Docker images. You can leverage these images to run them as a container directly or use these images as base images in your Dockerfile to create your own customized Docker images. Moreover, you can even create your own repositories inside Dockerhub and make… Read More »

How to pull Docker Images?

Docker has tons of official and vendor-specific images hosted on its own cloud registry called Docker Hub. If you are a registered user in Docker Hub, you can leverage it to pull or download several useful Docker images from it such as Nginx web server, Ubuntu, Centos, Fedora, MySQL, Python, Alpine, Java, etc. You have to be logged… Read More »

Top 50 Docker Interview Questions and Answers in 2021

Businesses want projects to be completed so that they can expand. With the demand for quicker and smoother methods, this notion has strengthened. As a result, modern and highly efficient tools to support business functions are in high demand. Docker is one such tool used to pack, ship, and run applications on containers. Docker is an open-source containerization… Read More »

How to list Docker Images?

You can pull tons of Docker images from the official Docker registry or create your own customized images by using these images as base images and specify instructions inside a Dockerfile to add new image layers on top of these images. However, if you have been working with Docker for a considerable amount of time now, you might… Read More »

How to use a Dockerfile to build Docker Images?

Overview Docker is one of the most popular containerization platforms with a variety of tools that helps developers to design, build, test, and deploy applications in a packaged and containerized environment called Docker containers. These containers are runtime instances of Docker images. Docker images are simply a template of the environment that we want to create which will… Read More »