Initial commit: add .gitignore and README

event-bus/nats/install.sh

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+#!/bin/bash
+# Install NATS Event Bus
+
+set -e
+
+NAMESPACE="event-bus"
+
+echo "📡 Installing NATS Event Bus..."
+
+# Check prerequisites
+command -v kubectl >/dev/null 2>&1 || { echo "❌ kubectl not found"; exit 1; }
+
+# Create namespace
+echo "📦 Creating namespace: $NAMESPACE"
+kubectl create namespace "$NAMESPACE" --dry-run=client -o yaml | kubectl apply -f -
+
+# Apply deployment
+echo "🚀 Deploying NATS..."
+kubectl apply -f k8s-deployment.yaml
+
+# Wait for StatefulSet
+echo "⏳ Waiting for NATS to be ready..."
+kubectl wait --for=condition=ready --timeout=300s pod -l app=nats -n "$NAMESPACE"
+
+echo "✅ NATS Event Bus installed successfully!"
+echo ""
+echo "📝 Access NATS monitoring:"
+echo "   kubectl port-forward -n $NAMESPACE svc/nats 8222:8222"
+echo "   Then visit: http://localhost:8222"
+

event-bus/nats/k8s-deployment.yaml

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+# NATS Server Kubernetes Deployment
+
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: event-bus
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: nats-config
+  namespace: event-bus
+data:
+  nats.conf: |
+    port: 4222
+    http_port: 8222
+    jetstream:
+      store_dir: /data/jetstream
+      max_mem: 2GB
+      max_file: 10GB
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: nats
+  namespace: event-bus
+spec:
+  serviceName: nats
+  replicas: 3
+  selector:
+    matchLabels:
+      app: nats
+  template:
+    metadata:
+      labels:
+        app: nats
+    spec:
+      containers:
+        - name: nats
+          image: nats:2.10-alpine
+          args:
+            - -c
+            - /etc/nats/nats.conf
+          ports:
+            - name: client
+              containerPort: 4222
+            - name: cluster
+              containerPort: 6222
+            - name: monitor
+              containerPort: 8222
+          volumeMounts:
+            - name: config
+              mountPath: /etc/nats
+            - name: data
+              mountPath: /data/jetstream
+          resources:
+            requests:
+              memory: "512Mi"
+              cpu: "200m"
+            limits:
+              memory: "1Gi"
+              cpu: "500m"
+      volumes:
+        - name: config
+          configMap:
+            name: nats-config
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        storageClassName: standard
+        resources:
+          requests:
+            storage: 10Gi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: nats
+  namespace: event-bus
+spec:
+  clusterIP: None
+  ports:
+    - port: 4222
+      targetPort: 4222
+      name: client
+    - port: 6222
+      targetPort: 6222
+      name: cluster
+    - port: 8222
+      targetPort: 8222
+      name: monitor
+  selector:
+    app: nats
+

event-bus/nats/nats.yaml

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+# NATS Server Configuration
+
+port: 4222
+http_port: 8222
+cluster:
+  port: 6222
+  routes:
+    - nats://nats-1:6222
+    - nats://nats-2:6222
+    - nats://nats-3:6222
+
+jetstream:
+  store_dir: /data/jetstream
+  max_mem: 2GB
+  max_file: 10GB
+
+logging:
+  time: true
+  debug: false
+  trace: false
+  logtime: true
+  log_file: "/var/log/nats/nats.log"
+  log_size_limit: 100MB
+
+authorization:
+  users:
+    - user: api-user
+      password: ${NATS_API_PASSWORD}
+      permissions:
+        publish:
+          - ">"
+        subscribe:
+          - ">"
+    - user: service-user
+      password: ${NATS_SERVICE_PASSWORD}
+      permissions:
+        publish:
+          - "events.>"
+        subscribe:
+          - "events.>"
+