Merge pull request #728 from aws-samples/riv25-eks-http-metrics-dashboard

Added HTTP Metrics dashboard

Author: ashakirin

infrastructure/scripts/setup/java-on-eks/grafana-dashboard-http.sh

@@ -0,0 +1,204 @@
+#!/bin/bash
+
+set -euo pipefail
+
+log() {
+  echo "[$(date +'%H:%M:%S')] $*"
+}
+
+NAMESPACE="monitoring"
+GRAFANA_USER="admin"
+SECRET_NAME="unicornstore-ide-password-lambda"
+FOLDER_NAME="JVM Metrics"
+DASHBOARD_TITLE="HTTP Metrics"
+
+AWS_REGION=${AWS_REGION:-$(aws configure get region)}
+if [[ -z "$AWS_REGION" ]]; then
+  AWS_REGION=$(curl -s http://169.254.169.254/latest/meta-data/placement/region 2>/dev/null || echo "us-east-1")
+fi
+
+# Setup Grafana monitoring
+SECRET_VALUE=$(aws secretsmanager get-secret-value --secret-id "$SECRET_NAME" --query 'SecretString' --output text)
+GRAFANA_PASSWORD=$(echo "$SECRET_VALUE" | jq -r '.password')
+
+GRAFANA_LB=$(kubectl get svc grafana -n "$NAMESPACE" -o jsonpath="{.status.loadBalancer.ingress[0].hostname}" 2>/dev/null || echo "")
+if [[ -z "$GRAFANA_LB" ]]; then
+    log "❌ Grafana LoadBalancer not found. Run monitoring.sh first."
+    exit 1
+fi
+
+GRAFANA_URL="http://$GRAFANA_LB"
+
+log "⏳ Waiting for Grafana..."
+for i in {1..20}; do
+  STATUS=$(curl -s -u "$GRAFANA_USER:$GRAFANA_PASSWORD" "$GRAFANA_URL/api/health" | jq -r .database 2>/dev/null || true)
+  if [[ "$STATUS" == "ok" ]]; then
+    break
+  fi
+  sleep 5
+done
+
+log "📁 Creating folder '$FOLDER_NAME'..."
+FOLDER_RESPONSE=$(curl -s -X POST -H "Content-Type: application/json" \
+  -u "$GRAFANA_USER:$GRAFANA_PASSWORD" \
+  -d "{\"title\": \"$FOLDER_NAME\"}" \
+  "$GRAFANA_URL/api/folders")
+
+FOLDER_UID=$(echo "$FOLDER_RESPONSE" | jq -r '.uid // empty')
+FOLDER_ID=$(echo "$FOLDER_RESPONSE" | jq -r '.id // empty')
+if [[ -z "$FOLDER_UID" ]]; then
+  # Try to get existing folder
+  EXISTING_FOLDER=$(curl -s -u "$GRAFANA_USER:$GRAFANA_PASSWORD" "$GRAFANA_URL/api/folders" | jq -r ".[] | select(.title == \"$FOLDER_NAME\")")
+  if [[ -n "$EXISTING_FOLDER" ]]; then
+    FOLDER_UID=$(echo "$EXISTING_FOLDER" | jq -r '.uid')
+    FOLDER_ID=$(echo "$EXISTING_FOLDER" | jq -r '.id')
+    log "📁 Using existing folder: $FOLDER_UID"
+  else
+    FOLDER_UID=""
+    FOLDER_ID=0
+    log "⚠️ Using General folder"
+  fi
+else
+  log "✅ Folder created: $FOLDER_UID"
+fi
+
+log "📊 Creating HTTP metrics dashboard..."
+cat > /tmp/dashboard.json <<EOF
+{
+  "title": "$DASHBOARD_TITLE",
+  "uid": "http-metrics-dashboard",
+  "version": 1,
+  "weekStart": "",
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 0,
+  "id": null,
+  "timepicker": {},
+  "timezone": "browser",
+  "links": [],
+  "panels": [
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "Prometheus"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "drawStyle": "line",
+            "fillOpacity": 0,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "reqps"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 24,
+        "x": 0,
+        "y": 0
+      },
+      "id": 1,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "Prometheus"
+          },
+          "disableTextWrap": false,
+          "editorMode": "code",
+          "expr": "rate(http_server_requests_seconds_count{method=\"POST\"}[30s])",
+          "fullMetaSearch": false,
+          "includeNullMetadata": true,
+          "instant": false,
+          "legendFormat": "POST {{uri}} - {{status}}",
+          "range": true,
+          "refId": "A",
+          "useBackend": false
+        }
+      ],
+      "title": "HTTP POST Request Rate",
+      "type": "timeseries"
+    }
+  ],
+  "refresh": "5s",
+  "schemaVersion": 39,
+  "tags": ["http", "metrics"],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-5m",
+    "to": "now"
+  }
+}
+EOF
+
+DASHBOARD_RESPONSE=$(curl -s -X POST -H "Content-Type: application/json" \
+  -u "$GRAFANA_USER:$GRAFANA_PASSWORD" \
+  -d "{\"dashboard\": $(cat /tmp/dashboard.json), \"overwrite\": true, \"folderId\": $FOLDER_ID}" \
+  "$GRAFANA_URL/api/dashboards/db")
+
+DASHBOARD_UID=$(echo "$DASHBOARD_RESPONSE" | jq -r '.uid')
+rm /tmp/dashboard.json
+
+log "✅ HTTP metrics dashboard created: $DASHBOARD_UID"
+
+log "📊 Dashboard shows HTTP requests metrics"