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store: Fix: health_check.py disk check excludes squashfs/tmpfs/devtmpfs to prevent snap mount false positives

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Cal Corum 2026-02-20 14:16:35 -06:00
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---
id: 8f344d36-6005-4bfa-aa98-4e68d571a174
type: fix
title: "Fix: health_check.py disk check excludes squashfs/tmpfs/devtmpfs to prevent snap mount false positives"
tags: [monitoring, claude-runner-monitoring, python, fix, homelab, snap]
importance: 0.7
confidence: 0.8
created: "2026-02-20T20:16:35.251352+00:00"
updated: "2026-02-20T20:16:35.251352+00:00"
---
## Problem
VM 106 (pihole1) runs Ubuntu with snap packages. Snap mounts are squashfs filesystems that are read-only and always report 100% disk usage. The `df` command in `health_check.py` was including these mounts, causing false critical alerts on any server with snap packages installed.
## Fix
Changed `df` command on line 228 of `health_check.py` from:
```bash
df -h --output=pcent,target
```
to:
```bash
df -h --output=pcent,target -x squashfs -x tmpfs -x devtmpfs
```
## Impact
Prevents false positive disk space alerts on any monitored server that has snap packages installed. Also excludes tmpfs and devtmpfs which are virtual/RAM filesystems that don't represent real disk usage concerns.
## Project
CT 302 claude-runner-monitoring, file: `health_check.py`