Clone a Fly Machine, optionally restoring volume data from snapshot
domain: fly.io · 5 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Authenticate. Run `fly machine clone <machine_id> -a <app>` to create a new Machine that copies the source.
By default the clone gets a fresh EMPTY volume (if the source had one); restore data instead with --from-snapshot <snapshot-id> or --from-snapshot last for the most recent snapshot.
Attach an existing volume with --attach-volume <volume_id>[:/path/inside/machine] instead if you want to reuse a specific volume.
Control the new Machine: --name <name>, --region <region>, --vm-cpus/--vm-memory/--vm-size, and --override-cmd or --clear-cmd to set/clear the command.
Create a standby for the source with --standby-for=source; use --auth for deployment monitoring.
Known gotchas
Default volume on a clone is EMPTY, not a copy — data loss if you assume the clone carries the data; use --from-snapshot to actually restore contents.
Volumes are placed in separate hardware zones by default (--volume-requires-unique-zone) for availability.
Requires auth and the source machine id (find via `fly machine list -a <app>`).
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