Selfhosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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I'm kinda confused by all of the people here doing that tbh.
The entire point of dockerfiles is to have them produce the same image over and over again. Meaning, I can take the dockerfile, spin it up on any machine on gods green earth and have it run there in the exact same state as anywhere else, minus eventual configs or files that need to be mounted.
Now, if I'm worried about an image disappearing from a remote registry, I just download the dockerfile and have it stored locally somewhere. But backuping the entire image seems seriously weird to me and kinda goes against of the spirit of docker.
A lot of Dockerfiles start with installing dependencies via the base image's package manager, without specifying exact versions (which isn't always possible, as most distros don't keep all history of all packages in their repos). So all your dependencies may have different versions, when you build again.