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Fly.ioAnnouncement
Volume Expansion and Snapshot Restores
Summary
Fly.io introduces two improvements to its persistent storage volumes: extending an existing volume and restoring a regular volume from a snapshot. Previously, increasing capacity required provisioning an empty volume and copying data, whereas the new fly volume extend command resizes it after the attached app restarts; regular apps restart automatically, while Machines VMs require manual restarts. Individual restores are available from flyctl v0.0.363 by supplying --snapshot-id when creating a new volume, after listing snapshots and selecting the desired ID. Snapshots are taken daily, stored in object storage for five days, and can restore data only to a volume at least as large as the source.
Context
Fly.io volumes previously required a new empty volume and a data copy when more storage was needed. Restoring snapshots for regular volumes also required asking Fly.io to perform the restore, unlike HA Postgres snapshot restores.
Approach / What changed
The fly volume extend CLI command increases a volume’s size, with an automatic restart for regular apps and a manual restart for Machines VMs. Starting with flyctl v0.0.363, users can list snapshots and create a new volume with --snapshot-id to restore data. Restores may target a larger volume, but not a smaller one.
Takeaways
Extending a volume requires the attached app instance to restart so its file system can be resized; regular apps restart automatically, while Machines VMs must be restarted manually.
Regular volume snapshots are taken daily and retained in object storage for five days before expiring.
A snapshot restore creates a new volume, and the destination cannot be smaller than the volume from which the snapshot was taken.
Source and freshness
- Source
- fly.io
- Published
- Added to Yomu
- Last updated
Summaries are generated from the original by a language model. Check the original before relying on it.
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