On Wed May 21, 2025 at 10:09 AM BST, Dan Purgert wrote:
As far as I know namespaces (read: poorly), the backup script would need to execute setns(2) in order to join the previously created namespace for your "/backup" target. But, I've only used them with networking devices, so there may be other caveats here.
Some mechanism is also needed to persist the previously-created namespace. I might need a PID hanging around to keep it defined.
It would be really nice if systemd just supported this kind of thing. It has JoinsNamespaceOf= , which is very close: it's used for a secondary process to access the mount namespace of another, but only for the private /tmp created by PrivateTmp= , and not any other mounts.
-- Please do not CC me for listmail. 👱🏻 Jonathan Dowland ✎ [email protected] 🔗 https://jmtd.net
