Historically, you can download official community software from a distributed mirror network.
Even for Java Maven, there are two sites globally.
But what is about Docker Hub? What if Docker, Inc. decides to close the Hub or the site will become unstable?
Beyond just having business critical images which you can rebuild and store locally, Docker Hub is also:
- indicator that a release is official
- often provides Dockerfile which is very valuable configuration knowledge
- provides links to backing GitHub projects
- features like starring and download numbers
Are there other mirrors not hosted by Docker either comparable initiatives so that an open source community would say "ok we can publish our release also there"?
After a short research, I see there are many products to setup your own registry, but not an alternative Hub site.