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vhaudiquet
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prepare_provisioned and persist were sitting there with no consumer: the machinery for "install once, every later boot carries it" that one-shot machines cannot do on their own - packages, users, anything short of a share - and no way to reach it. ecrou provision IMAGE -- COMMAND is the missing surface. It boots a machine over a freshly prepared rootfs, runs the command, and persists the tree into the cache entry, marked provisioned; a marked entry is extracted as-is on every later call, the command skipped. A failing command leaves the entry unprovisioned for the next attempt, and --no-cache re-downloads before re-provisioning. The engine behind run splits out as vm::run_prepared: the boot half of run, taking the rootfs the provisioner is about to persist. run itself is prepare plus that. One cache fix the provision flow surfaced: a digest refresh replaced the tarball but left the old .provisioned marker, so a fresh pristine image would present as provisioned and skip provisioning for good. The marker now dies with the entry it belonged to.