first commit

q1-deploy-monitor/health-check.sh

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+#!/usr/bin/env bash
+#
+# Simple bash health monitor - polls /health every 30s.
+# Usage: ./monitor.sh https://your-app.ghaymah.systems [interval_seconds]
+
+set -euo pipefail
+
+BASE_URL="${1:?Usage: $0 <base_url> [interval_seconds]}"
+INTERVAL="${2:-30}"
+HEALTH_URL="${BASE_URL%/}/health"
+LOG_FILE="monitor.log"
+FAILURE_THRESHOLD=3
+failures=0
+
+log() {
+    echo "$(date -u +"%Y-%m-%dT%H:%M:%SZ") [$1] $2" | tee -a "$LOG_FILE"
+}
+
+log "INFO" "Starting monitor for $HEALTH_URL every ${INTERVAL}s"
+
+while true; do
+    start_ns=$(date +%s%N)
+    http_code=$(curl -o /tmp/health_resp.json -s -w "%{http_code}" --max-time 5 "$HEALTH_URL" || echo "000")
+    end_ns=$(date +%s%N)
+    elapsed_ms=$(( (end_ns - start_ns) / 1000000 ))
+
+    if [ "$http_code" == "200" ]; then
+        if [ "$failures" -gt 0 ]; then
+            log "INFO" "Service RECOVERED after $failures failed check(s)."
+        fi
+        failures=0
+        log "INFO" "OK  status=$http_code  response_time=${elapsed_ms}ms"
+    else
+        failures=$((failures + 1))
+        log "WARN" "FAIL attempt=$failures  status=$http_code"
+        if [ "$failures" -ge "$FAILURE_THRESHOLD" ]; then
+            log "ERROR" "ALERT: $BASE_URL has failed $failures consecutive health checks!"
+        fi
+    fi
+
+    sleep "$INTERVAL"
+done