26 lines
505 B
Bash
26 lines
505 B
Bash
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#!/bin/sh
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HEARTBEAT_FILE="/opt/homelab/state/stability-agent.heartbeat"
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MAX_AGE_SECONDS=300 # 5 minutes
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if [ ! -f "$HEARTBEAT_FILE" ]; then
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echo "Heartbeat file missing"
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exit 1
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fi
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# Get current time in seconds
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NOW=$(date +%s)
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# Get file modification time in seconds
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# Busybox stat (standard in alpine/slim) uses -c %Y
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FILE_TIME=$(stat -c %Y "$HEARTBEAT_FILE")
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AGE=$((NOW - FILE_TIME))
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if [ "$AGE" -gt "$MAX_AGE_SECONDS" ]; then
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echo "Heartbeat is too old: ${AGE}s"
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exit 1
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fi
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exit 0
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