feat: initialize repository with SRE infrastructure, monitoring dashboard, and deployment documentation

q1-deploy-monitor/health-check.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+
+# Configuration
+API_URL="${API_URL:-https://ghaymah-task-da46b224b9fc.hosted.ghaymah.systems}"
+CHECK_INTERVAL=30
+STATUS_FILE="status.json"
+
+echo "=================================================="
+echo "   Starting Ghaymah SRE Monitoring Agent          "
+echo "   Target URL : $API_URL                          "
+echo "   Interval   : ${CHECK_INTERVAL}s                 "
+echo "=================================================="
+
+while true; do
+    TIMESTAMP=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+
+    START_TIME=$(date +%s%N)
+    HTTP_RESPONSE=$(curl -s -w "\n%{http_code}" "${API_URL}/metrics")
+    END_TIME=$(date +%s%N)
+
+    # Calculate latency in milliseconds
+    LATENCY_MS=$(( (END_TIME - START_TIME) / 1000000 ))
+
+    HTTP_BODY=$(echo "$HTTP_RESPONSE" | sed '$d')
+    HTTP_CODE=$(echo "$HTTP_RESPONSE" | tail -n1)
+
+    if [ "$HTTP_CODE" -eq 200 ]; then
+        STATUS="healthy"
+        UPTIME=$(echo "$HTTP_BODY" | grep -o '"uptime_seconds":[0-9]*' | cut -d':' -f2)
+        TOTAL_REQ=$(echo "$HTTP_BODY" | grep -o '"total_requests":[0-9]*' | cut -d':' -f2)
+        AVG_LATENCY=$(echo "$HTTP_BODY" | grep -o '"average_latency_ms":[0-9.]*' | cut -d':' -f2)
+        LAST_LATENCY=$(echo "$HTTP_BODY" | grep -o '"last_request_latency_ms":[0-9.]*' | cut -d':' -f2)
+
+        echo "[ $TIMESTAMP ] [OK 200] Status: $STATUS | Latency: ${LATENCY_MS}ms | Total Requests: ${TOTAL_REQ:-0} | Avg Latency: ${AVG_LATENCY:-0}ms"
+
+        # Export JSON metrics status file for dashboard consumption
+        cat <<EOF > "$STATUS_FILE"
+{
+  "status": "$STATUS",
+  "http_code": $HTTP_CODE,
+  "check_timestamp": "$TIMESTAMP",
+  "check_latency_ms": $LATENCY_MS,
+  "uptime_seconds": ${UPTIME:-0},
+  "total_requests": ${TOTAL_REQ:-0},
+  "average_latency_ms": ${AVG_LATENCY:-0},
+  "last_request_latency_ms": ${LAST_LATENCY:-$LATENCY_MS}
+}
+EOF
+    else
+        STATUS="unhealthy"
+        echo "[ $TIMESTAMP ] [ERROR ${HTTP_CODE:-000}] Target $API_URL is DOWN or unreachable! Latency: ${LATENCY_MS}ms"
+
+        cat <<EOF > "$STATUS_FILE"
+{
+  "status": "$STATUS",
+  "http_code": ${HTTP_CODE:-0},
+  "check_timestamp": "$TIMESTAMP",
+  "check_latency_ms": $LATENCY_MS,
+  "uptime_seconds": 0,
+  "total_requests": 0,
+  "average_latency_ms": 0,
+  "last_request_latency_ms": 0
+}
+EOF
+    fi
+
+    sleep $CHECK_INTERVAL
+done