run a docker image

Running a Docker image is simple with these easy-to-follow steps.

Running a software application can sometimes come with a series of challenges due to differences in operating systems, supporting software, and system settings. Docker images cut through this friction by packaging an application and all of its dependencies into a standardized unit for software development. The following is a detailed guide on how to run a Docker image.

Step 1: Install Docker

If you have not done so, the first thing you need to do is to install Docker on your system. The process differs slightly depending on whether you’re using a Windows, Mac, or Linux operating system, but detailed instructions can be found on the Docker website.

Step 2: Pull The Docker Image

In order to run a Docker image, first pull it from a Docker registry where images are stored. Use the Docker pull command followed by the name of the Image:

docker pull [image name]

Replace “[image name]” with the name of the Docker image you wish to run.

Step 3: Verify Docker Image is Installed

After pulling the Docker image, now confirm whether it has been pulled successfully by using the Docker images command:

docker images

This command will show a list of images you have installed on your system.

Step 4: Run The Docker Image

With your Docker image installed, you can run it using the Docker run command followed by image name:

docker run [image name]

Again, replace “[image name]” with the actual name of your Docker image.

Step 5: Review the Application

Once you run the Docker image, Docker will execute the application inside the container. You should see the application’s output directly in your terminal.

In these few simple steps, you can run a Docker image effectively. Docker offers additional commands and options that you can use to interact with Docker images. These become necessary as you grow in your understanding of how Docker works and start creating your own Docker images. But for now, these simple steps are enough to get you started with running Docker images.