Now we know how to run docker images & we know that running a docker image creates a docker container. Now let's go over downloading and storing docker images.
We’ve run a simple hello-world docker image in the previous article. This image is hosted on Docker hub which is the part of the Docker ecosystem. It’s a managed solution from docker which allows us to find images and also let us manage our own images.
Firstly, Docker Hub is the Docker Registry ( a place where you could store your docker images) as we’ve learnt in understanding docker & docker daemon. A Registry contains a number of repositories & within a repository there’re a number of docker images & each one of those images have their own tags which helps to distinguish them. Tags are how docker version controls images.
We can say Docker Hub is like Github but for Docker Images where we can create our own public or private images and can find other docker images as well.
Inside of the docker hub, you can find official & unofficial (third-party community members) images of various tools. The official images are managed by Docker team.
You can start off by creating a free account on Docker Hub and start creating and managing your own images right away. Happy dockerizing.