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Why this exists A full disk causes odd failures far from the cause: databases stop, logs cannot be written, deployments fail half way. A small script that checks usage and tells you early is cheap insurance. This one…

Disk Usage Alert with Thresholds and a Slack Notification

Check every mounted filesystem against warning and critical thresholds, list the largest folders on a full disk, and post an alert to Slack with a safely built JSON message. Exits non-zero so cron and Jenkins notice.

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