Crontab Generator

Build a useful scheduled backup system on Ubuntu 24.04 LTS amd64, unless the target installer or embedded board requires its explicitly selected OS.

Use restic, cron, a private backup repository and a sample data directory. Include only the components this workload needs. Use synthetic sample data and placeholders for site-specific domains, authorized SSH public keys and external integration credentials. Create a non-root operator and keep administrative access private. Never put real credentials, patient records or customer data in the image.

Acceptance checks: run a backup on a short test schedule, restore it into a separate directory and verify scheduling survives reboot. Boot the actual artifact and repeat relevant health, persistence and access checks after reboot. Keep hardware-dependent checks pending until the specified equipment is attached.

Deliver the bootable image or reproducible deployment recipe, the software inventory and a test report that separates successful assembly from runtime verification. Ask for missing hardware, storage and access details before making irreversible deployment choices. Do not deploy into production or erase an existing disk without an explicit target.