apiVersion: apps/v1
kind: Deployment
metadata:
  name: nac-node
  namespace: nac-blockchain
  labels:
    app: nac-node
    version: v1.0.0
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nac-node
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
  template:
    metadata:
      labels:
        app: nac-node
        version: v1.0.0
      annotations:
        prometheus.io/scrape: "true"
        prometheus.io/port: "9090"
        prometheus.io/path: "/metrics"
    spec:
      serviceAccountName: nac-node
      securityContext:
        runAsUser: 1000
        runAsGroup: 1000
        fsGroup: 1000
      containers:
      - name: nac-node
        image: nac-blockchain/node:latest
        imagePullPolicy: Always
        ports:
        - name: http-rpc
          containerPort: 8545
          protocol: TCP
        - name: ws-rpc
          containerPort: 8546
          protocol: TCP
        - name: p2p-tcp
          containerPort: 30303
          protocol: TCP
        - name: p2p-udp
          containerPort: 30303
          protocol: UDP
        - name: metrics
          containerPort: 9090
          protocol: TCP
        env:
        - name: NAC_NETWORK
          value: "mainnet"
        - name: NAC_LOG_LEVEL
          value: "info"
        - name: NAC_RPC_HOST
          value: "0.0.0.0"
        - name: NAC_RPC_PORT
          value: "8545"
        - name: NAC_WS_PORT
          value: "8546"
        - name: NAC_P2P_PORT
          value: "30303"
        - name: NAC_DATA_DIR
          value: "/data/nac"
        envFrom:
        - configMapRef:
            name: nac-config
        - secretRef:
            name: nac-secrets
        volumeMounts:
        - name: nac-data
          mountPath: /data/nac
        - name: config
          mountPath: /data/nac/config
          readOnly: true
        resources:
          requests:
            cpu: "2"
            memory: "4Gi"
          limits:
            cpu: "4"
            memory: "8Gi"
        livenessProbe:
          exec:
            command:
            - nac-node
            - health
          initialDelaySeconds: 60
          periodSeconds: 30
          timeoutSeconds: 10
          failureThreshold: 3
        readinessProbe:
          exec:
            command:
            - nac-node
            - health
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 5
          failureThreshold: 3
        startupProbe:
          exec:
            command:
            - nac-node
            - health
          initialDelaySeconds: 0
          periodSeconds: 10
          timeoutSeconds: 5
          failureThreshold: 30
      volumes:
      - name: nac-data
        persistentVolumeClaim:
          claimName: nac-data-pvc
      - name: config
        configMap:
          name: nac-config
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: app
                  operator: In
                  values:
                  - nac-node
              topologyKey: kubernetes.io/hostname
---
apiVersion: v1
kind: Service
metadata:
  name: nac-node
  namespace: nac-blockchain
  labels:
    app: nac-node
spec:
  type: LoadBalancer
  selector:
    app: nac-node
  ports:
  - name: http-rpc
    port: 8545
    targetPort: 8545
    protocol: TCP
  - name: ws-rpc
    port: 8546
    targetPort: 8546
    protocol: TCP
  - name: p2p-tcp
    port: 30303
    targetPort: 30303
    protocol: TCP
  - name: p2p-udp
    port: 30303
    targetPort: 30303
    protocol: UDP
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: nac-data-pvc
  namespace: nac-blockchain
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 500Gi
  storageClassName: fast-ssd
---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: nac-node-hpa
  namespace: nac-blockchain
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: nac-node
  minReplicas: 3
  maxReplicas: 10
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 70
  - type: Resource
    resource:
      name: memory
      target:
        type: Utilization
        averageUtilization: 80
  behavior:
    scaleDown:
      stabilizationWindowSeconds: 300
      policies:
      - type: Percent
        value: 50
        periodSeconds: 60
    scaleUp:
      stabilizationWindowSeconds: 0
      policies:
      - type: Percent
        value: 100
        periodSeconds: 15
      - type: Pods
        value: 2
        periodSeconds: 15
      selectPolicy: Max