Docker Hub Explained: Build Once, Run Anywhere
In this Docker tutorial, we take a Docker image from a local machine and push it to Docker Hub so it can be pulled and run anywhere.
You will learn what a Docker registry is, why Docker Hub matters, how Docker image names and tags work, and how to push an image to the cloud. Then we will pull the same image on a clean machine and run it without source code, without a Dockerfile, and without installing the application dependencies manually.
Docker Hub is where Docker images live. Once your image is published there, any machine with Docker can pull it and run the exact same container.
What you will learn:
What a Docker registry is
What Docker Hub is used for
How Docker image names work
How Docker tags work
How to log in to Docker Hub
How to tag a local Docker image
How to push a Docker image to Docker Hub
How to pull and run the image on another machine
Why explicit tags matter
Why you should never push secrets into images
What Docker Hub does and does not do
#Docker #DockerHub #DevOps #Containers #SoftwareEngineering