Considering “no online internet acess on server” phenomena in enterprises netwoek - how one approach docker & docker registry practice ?


With a mirror and/or proxy.

Your private registry has Internet to proxy public images, and everyone uses it as a mirror. Where the registry cannot have Internet, push your own images or otherwise stage the content.

This is the same basic problem as mirroring OS updates (yum, apt, WSUS) for networks without Internet. Calling this a "container registry" rather than "package repository" doesn't really change that you mirror HTTP downloads, only the tools you use to do so.

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