Krzesimir Nowak
6be5b44239
To enable it, use "ephemeral" either for mutable mode environment variable or for value of "--mutable=" flag. Instead of using mutable dir in /var/lib/extensions.mutable/<hierarchy>, we create a directory for overlayfs upperdir and workdir in the same tmpfs mount that sysext worker process creates in /run/systemd/sysext. As the path for the workdir will be gone when the worker quits, there is no need to do any additional cleanup. As such, there is also no need to store a path to workdir in the metadata directory.
System and Service Manager
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