feat(hcloud): Talos snapshot images improvements #110
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This change significantly reduces the snapshot size by zeroing out the disk before writing the Talos image. Inspired by apricote/hcloud-upload-image#96 Thanks to the original suggestion from the hcloud-upload-image project for inspiring this optimization.
Hetzner Talos builds now include the QEMU Guest Agent (GA) enabled by default, as documented in: - https://docs.hetzner.cloud/changelog#2025-04-23-talos-linux-v195-iso-now-available - https://www.talos.dev/v1.9/talos-guides/install/cloud-platforms/hetzner/#upload-image
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Looks great! I'll merge this with the next major release of the module, probably this month 🙂 |
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Hi! 👋
This PR includes two key improvements to Talos snapshot bootstrap images.
📌 Summary of Changes
Enabled QEMU Guest Agent (GA) by default
As documented in the Hetzner changelog and the Talos Hetzner guide, the QEMU Guest Agent is now enabled by default in their builds, so i guess we should match that as-well.
Reduced snapshot size by using blkdiscard before writing the image
This change significantly reduces the final snapshot size and node bootstrap times by zeroing out the disk before writing the Talos image, as originally proposed in hcloud-upload-image project issue #96 .
Regards!