038cc9348d
- Add src/serverMetrics.ts (ServerMetrics class for /api/health + /api/metrics) - Add scripts/fabric-health-check.sh (curl-based liveness probe) - Wire sd_notify READY=1 on server start and WATCHDOG=1 keepalives in server.ts so the Type=notify systemd service correctly reports start and keeps the watchdog alive without an external npm package Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
21 lines
571 B
Bash
21 lines
571 B
Bash
#!/usr/bin/env bash
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# FABRIC systemd health check script
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# Called by systemd's WatchdogSec mechanism.
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# Exits non-zero if the health endpoint reports unhealthy.
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PORT="${FABRIC_PORT:-3000}"
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MAX_RETRIES=3
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RETRY_INTERVAL=1
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for i in $(seq 1 $MAX_RETRIES); do
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STATUS=$(curl -sf -o /dev/null -w '%{http_code}' "http://localhost:${PORT}/api/health" 2>/dev/null)
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if [ "$STATUS" = "200" ]; then
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exit 0
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fi
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if [ "$i" -lt "$MAX_RETRIES" ]; then
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sleep $RETRY_INTERVAL
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fi
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done
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echo "FABRIC health check failed: HTTP $STATUS after $MAX_RETRIES attempts" >&2
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exit 1
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