migrated from github

health-check/health-check.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+# ==============================
+# Configuration
+# ==============================
+
+NTFY_URL="https://ntfy.hillbillyer.dev/health-alert"
+DISK_THRESHOLD=95
+RAM_THRESHOLD=90
+STATE_FILE="$HOME/hillbillyer/health-check/proxmox_health_state"
+
+HOSTNAME=$(hostname)
+
+# ==============================
+# Disk Check (Ignore tmpfs, etc.)
+# ==============================
+
+disk_alert=0
+disk_message=""
+
+while read -r source fstype size used avail pcent mount; do
+    usage_percent=$(echo "$pcent" | sed 's/%//')
+
+    # Skip unwanted filesystem types
+    if [[ "$fstype" =~ ^(tmpfs|devtmpfs|overlay|squashfs)$ ]]; then
+        continue
+    fi
+
+    if [ "$usage_percent" -ge "$DISK_THRESHOLD" ]; then
+        disk_alert=1
+        disk_message+="Disk alert on $HOSTNAME: $mount ($fstype) is ${pcent} full\n"
+    fi
+done < <(df -hT | tail -n +2)
+
+# ==============================
+# RAM Check
+# ==============================
+
+ram_used_percent=$(free | awk '/Mem:/ {printf("%.0f"), $3/$2 * 100}')
+
+ram_alert=0
+ram_message=""
+
+if [ "$ram_used_percent" -ge "$RAM_THRESHOLD" ]; then
+    ram_alert=1
+    ram_message="RAM alert on $HOSTNAME: Memory usage is ${ram_used_percent}%\n"
+fi
+
+# ==============================
+# State Handling (Prevent Spam)
+# ==============================
+
+previous_state=""
+[ -f "$STATE_FILE" ] && previous_state=$(cat "$STATE_FILE")
+
+current_state="disk:$disk_alert ram:$ram_alert"
+
+if [ "$current_state" != "$previous_state" ]; then
+    if [ "$disk_alert" -eq 1 ] || [ "$ram_alert" -eq 1 ]; then
+        message="${disk_message}${ram_message}"
+        echo -e "$message" | curl -s \
+            -H "Title: Usage Alert on $HOSTNAME" \
+            -H "Priority: urgent" \
+            -d @- "$NTFY_URL"
+    fi
+    echo "$current_state" > "$STATE_FILE"
+fi