Getting started with Docker images

The very first Docker image we can run is the hello-world image. It is often used to test whether Docker is correctly installed and running.

hello-world

After the installation, open the terminal (Command Prompt in Windows) and run the following:

$ docker run hello-world

This command will pull the hello-world image from the Docker Hub public repository and run the application in it. If you can run it successfully, you will see this output:

Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
70f5ac315c5a: Pull complete
Digest: sha256:88ec0acaa3ec199d3b7eaf73588f4518c25 f9d34f58ce9a0df68429c5af48e8d
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the &quot...