fix: give every VM its own machine ID - #18
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systemd's and dbus's package configuration during the apt layer bakes a machine ID into /etc/machine-id and /var/lib/dbus/machine-id. Both survive into every VM created from the image, so a whole fleet shares one identity, which defeats anything that assumes machine IDs are unique (systemd's FixedRandomDelay=, for one). Empty the file at the end of the build so systemd generates one per VM in early boot. Emptied rather than removed: systemd treats an absent /etc/machine-id as first boot and presets all units, which would re-enable the ones this image disables. Ported from exeuntu commit e530b2f (17 Aug 2026), the only platform-wiring change upstream since exeslim was forked.
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Package configuration during the apt layer bakes a machine ID into
/etc/machine-idand/var/lib/dbus/machine-id, so every VM created from this image shares one identity. That defeats anything assuming machine IDs are unique, such as systemd'sFixedRandomDelay=.This empties the file as the last step of the build so systemd generates a fresh ID per VM in early boot. It is emptied rather than removed: systemd treats an absent
/etc/machine-idas first boot and presets all units, which would re-enable the ones this image disables.Ported from exeuntu commit e530b2f. I checked every upstream Dockerfile commit since exeslim was forked on 26 Jul; this is the only platform-wiring change. The rest (Go bump,
ghfrom release binary, OpenCode bundling) is agent-workstation only and does not apply.Also adds a row to the README correlation table.