docker

A practical question with a precise answer, and the size is not the real cost. Pull time on every node, registry storage, and attack surface all scale with it.

Everyone reaches for reinstall. The disciplined path is one journal file, four failure signatures, and an explicit decision about whether this host deserves surgery at all.

A public registry throttles by source IP and your whole fleet shares one. Why fifty nodes count as a single anonymous user, and authentication and caching changes that reduce upstream demand.