juwan-backend/deploy/k8s/service/chat/chat-api.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: chat-api
  namespace: juwan
  labels:
    app: chat-api
spec:
  replicas: 3
  revisionHistoryLimit: 5
  selector:
    matchLabels:
      app: chat-api
  template:
    metadata:
      labels:
        app: chat-api
    spec:
      serviceAccountName: find-endpoints
      containers:
        - name: chat-api
          image: 103.236.53.208:4418/juwan/chat-api:latest
          imagePullPolicy: Always
          ports:
            - containerPort: 8888
              name: http
              protocol: TCP
            - containerPort: 8889
              name: ws
              protocol: TCP
            - containerPort: 8443
              name: wt
              protocol: UDP
            - containerPort: 4001
              name: metrics
              protocol: TCP
          env:
            - name: REDIS_M_HOST
              value: "chat-redis-master.juwan:6379"
            - name: REDIS_S_HOST
              value: "chat-redis-replica.juwan:6379"
            - name: REDIS_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: chat-redis
                  key: password
            - name: JWT_SECRET_KEY
              valueFrom:
                secretKeyRef:
                  name: jwt-secret
                  key: secret-key
            - name: MONGO_URI
              value: "mongodb://app-user:$(MONGO_PASSWORD)@chat-mongodb-0.chat-mongodb-svc.juwan.svc.cluster.local:27017,chat-mongodb-1.chat-mongodb-svc.juwan.svc.cluster.local:27017,chat-mongodb-2.chat-mongodb-svc.juwan.svc.cluster.local:27017/juwan_chat?replicaSet=chat-mongodb&authSource=admin"
            - name: MONGO_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: chat-mongodb-app-user-password
                  key: password
          readinessProbe:
            tcpSocket:
              port: 8888
            initialDelaySeconds: 5
            periodSeconds: 10
          livenessProbe:
            tcpSocket:
              port: 8888
            initialDelaySeconds: 15
            periodSeconds: 20
          resources:
            requests:
              cpu: 500m
              memory: 512Mi
            limits:
              cpu: 1000m
              memory: 1024Mi
          volumeMounts:
            - name: timezone
              mountPath: /etc/localtime
            - name: wt-tls
              mountPath: /etc/certs
              readOnly: true
      volumes:
        - name: timezone
          hostPath:
            path: /usr/share/zoneinfo/Asia/Shanghai
        - name: wt-tls
          secret:
            secretName: chat-wt-tls
            optional: true

---
# TCP Service: REST API + WebSocket
apiVersion: v1
kind: Service
metadata:
  name: chat-api-svc
  namespace: juwan
  annotations:
    prometheus.io/scrape: "true"
    prometheus.io/port: "4001"
    prometheus.io/path: "/metrics"
spec:
  ports:
    - name: http
      port: 8888
      targetPort: 8888
      protocol: TCP
    - name: ws
      port: 8889
      targetPort: 8889
      protocol: TCP
    - name: metrics
      port: 4001
      targetPort: 4001
      protocol: TCP
  selector:
    app: chat-api

---
# UDP Service: WebTransport (QUIC)
apiVersion: v1
kind: Service
metadata:
  name: chat-api-wt
  namespace: juwan
spec:
  ports:
    - name: webtransport
      port: 8443
      targetPort: 8443
      protocol: UDP
  selector:
    app: chat-api

---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: chat-api-hpa-c
  namespace: juwan
  labels:
    app: chat-api-hpa-c
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: chat-api
  minReplicas: 3
  maxReplicas: 10
  metrics:
    - type: Resource
      resource:
        name: cpu
        target:
          type: Utilization
          averageUtilization: 80

---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: chat-api-hpa-m
  namespace: juwan
  labels:
    app: chat-api-hpa-m
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: chat-api
  minReplicas: 3
  maxReplicas: 10
  metrics:
    - type: Resource
      resource:
        name: memory
        target:
          type: Utilization
          averageUtilization: 80

---
apiVersion: v1
kind: Secret
metadata:
  name: chat-mongodb-app-user-password
  namespace: juwan
type: Opaque
stringData:
  password: CHANGE_ME_CHAT_MONGO_PASSWORD

---
apiVersion: mongodbcommunity.mongodb.com/v1
kind: MongoDBCommunity
metadata:
  name: chat-mongodb
  namespace: juwan
spec:
  members: 3
  type: ReplicaSet
  version: "7.0.12"
  security:
    authentication:
      modes:
        - SCRAM
  users:
    - name: app-user
      db: admin
      passwordSecretRef:
        name: chat-mongodb-app-user-password
      roles:
        - name: readWrite
          db: juwan_chat
      scramCredentialsSecretName: chat-mongodb-app-user-scram
  additionalMongodConfig:
    storage.wiredTiger.engineConfig.journalCompressor: zlib

---
apiVersion: v1
kind: Secret
metadata:
  name: chat-redis
  namespace: juwan
type: Opaque
stringData:
  password: CHANGE_ME_CHAT_REDIS_PASSWORD

---
apiVersion: redis.redis.opstreelabs.in/v1beta2
kind: RedisReplication
metadata:
  name: chat-redis
  namespace: juwan
spec:
  clusterSize: 3
  kubernetesConfig:
    image: quay.io/opstree/redis:v7.0.12
    imagePullPolicy: IfNotPresent
    resources:
      requests:
        cpu: 100m
        memory: 128Mi
      limits:
        cpu: 500m
        memory: 512Mi
    redisSecret:
      name: chat-redis
      key: password
  redisExporter:
    enabled: true
    image: quay.io/opstree/redis-exporter:latest
    imagePullPolicy: Always
  podSecurityContext:
    runAsUser: 1000
    fsGroup: 1000
  storage:
    volumeClaimTemplate:
      spec:
        accessModes: ["ReadWriteOnce"]
        resources:
          requests:
            storage: 1Gi

---
apiVersion: redis.redis.opstreelabs.in/v1beta2
kind: RedisSentinel
metadata:
  name: chat-redis-sentinel
  namespace: juwan
spec:
  clusterSize: 3
  kubernetesConfig:
    image: quay.io/opstree/redis-sentinel:v7.0.12
    imagePullPolicy: IfNotPresent
    resources:
      requests:
        cpu: 100m
        memory: 128Mi
      limits:
        cpu: 500m
        memory: 512Mi
  podSecurityContext:
    runAsUser: 1000
    fsGroup: 1000
  redisSentinelConfig:
    redisReplicationName: chat-redis
    masterGroupName: mymaster
    redisPort: "6379"
    quorum: "2"
    downAfterMilliseconds: "5000"
    failoverTimeout: "10000"
    parallelSyncs: "1"