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What is the docker hub full registry url for pulling docker images.
I would like to get url in the format: [registry-url]/[namespace]/[image]:[tag]
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By default, “somewhere” is the Docker Hub Registry (https://hub.docker.com). However, there are ways to configure other locations from which you can pull docker images. These locations are referred to as registries.
A Docker registry is a system for versioning, storing and distributing Docker images. DockerHub is a hosted registry used by default when installing the Docker engine, but there are other hosted registries available for public use such as AWS and Google's own registries.
Docker Hub is Docker's official cloud-based registry for Docker images. As you might expect, since Docker Hub is Docker's official registry, it is the default registry when you install Docker.
The Registry is a stateless, highly scalable server side application that stores and lets you distribute Docker images. The Registry is open-source, under the permissive Apache license. You can find the source code on GitHub.
[registry-url] in your syntax defaults to docker.io.
[namespace] defaults to library.
[tag] defaults to latest.
Docker calls the combination of [registry-url]/[namespace]/[image] a repository, which comes up occasionally.
So, if you docker pull mysql, that image name is identical to docker.io/library/mysql:latest.
(Note that this isn't a "real" URL, and in the general case there's no single HTTP URL or Web page that maps to a specific Docker image.)
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