IoT/deployments/k8s/emqx.yaml

# Создано: 2026-04-12
# EMQX MQTT-брокер для IoT-сервиса (namespace: sless).
#
# Архитектура:
#   IoT Device → MQTT CONNECT → EMQX (HTTP auth → iot-operator:9090/internal/mqtt/auth)
#   EMQX → MQTT PUBLISH → iot-mqtt-bridge (paho subscriber) → shared-SQS queue iot-telemetry
#   SQS → iot-sqs-consumer → Postgres
#
# EMQX 5.x конфиг через emqx.conf (HOCON формат), монтируется как ConfigMap volume.
#
# Порты:
#   1883 — MQTT (plaintext)
#   8083 — MQTT over WebSocket
#   18083 — EMQX Dashboard (admin/public по умолчанию — менять в prod!)
#
# Применение: kubectl apply -f deployments/k8s/emqx.yaml

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: emqx-config
  namespace: sless
data:
  # emqx.conf — HOCON конфиг для EMQX 5.5.x
  # Раздел authentication: HTTP Backend для проверки MQTT credentials IoT-устройств.
  # iot-operator ищет Secret iot-{deviceId} и сравнивает пароль.
  emqx.conf: |
    ## EMQX 5.x configuration (HOCON format)
    ## Создано: 2026-04-12

    ## node — без них EMQX 5.x падает при старте
    ## node.cookie — секрет кластерного Erlang-соединения, для single-node любая строка
    ## node.data_dir — директория данных (mnesia, конфиги)
    node {
      name = "emqx@127.0.0.1"
      cookie = "iot-emqx-cookie-mvp"
      data_dir = "/opt/emqx/data"
    }

    ## HTTP Auth Backend для IoT-устройств
    ## EMQX посылает POST с {username, password, clientid} → iot-operator отвечает {"result":"allow"|"deny"}
    authentication = [
      {
        mechanism = password_based
        backend = http
        enable = true
        method = post
        url = "http://iot-operator.sless.svc:9090/internal/mqtt/auth"
        body {
          username = "${username}"
          password = "${password}"
          clientid = "${clientid}"
        }
        headers {
          "content-type" = "application/json"
        }
        connect_timeout = 5s
        request_timeout = 5s
        pool_size = 8
      }
    ]

    ## Authorization (ACL) — HTTP backend для изоляции топиков по устройству.
    ## no_match = deny: если HTTP backend недоступен или не ответил — запрещаем.
    ## Endpoint /internal/mqtt/acl возвращает allow только для топиков {ns}/{deviceId}/#
    authorization {
      no_match = deny
      deny_action = disconnect
      cache {
        enable = true
        max_size = 32
        ttl = 1m
      }
      sources = [
        {
          type = http
          enable = true
          method = post
          url = "http://iot-operator.sless.svc:9090/internal/mqtt/acl"
          body {
            username = "${username}"
            clientid = "${clientid}"
            action = "${action}"
            topic = "${topic}"
          }
          headers {
            "content-type" = "application/json"
          }
          connect_timeout = 5s
          request_timeout = 5s
          pool_size = 8
        }
      ]
    }

    ## MQTT настройки
    mqtt {
      max_packet_size = 1MB
      max_topic_levels = 10
      retain_available = false
    }

    ## Listeners — plaintext MQTT + WebSocket
    listeners.tcp.default {
      bind = "0.0.0.0:1883"
      max_connections = 1024
    }

    listeners.ws.default {
      bind = "0.0.0.0:8083"
      max_connections = 512
    }

    ## Dashboard
    dashboard {
      listeners.http {
        bind = 18083
      }
    }
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: emqx
  namespace: sless
  labels:
    app: emqx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: emqx
  template:
    metadata:
      labels:
        app: emqx
    spec:
      containers:
        - name: emqx
          image: emqx/emqx:5.5.1
          ports:
            - name: mqtt
              containerPort: 1883
            - name: ws
              containerPort: 8083
            - name: dashboard
              containerPort: 18083
          volumeMounts:
            - name: emqx-conf
              mountPath: /opt/emqx/etc/emqx.conf
              subPath: emqx.conf
          resources:
            requests:
              memory: "256Mi"
              cpu: "100m"
            limits:
              memory: "512Mi"
              cpu: "500m"
          readinessProbe:
            tcpSocket:
              port: 1883
            initialDelaySeconds: 20
            periodSeconds: 10
            timeoutSeconds: 5
          livenessProbe:
            tcpSocket:
              port: 1883
            initialDelaySeconds: 40
            periodSeconds: 20
      volumes:
        - name: emqx-conf
          configMap:
            name: emqx-config
---
apiVersion: v1
kind: Service
metadata:
  name: emqx
  namespace: sless
spec:
  selector:
    app: emqx
  ports:
    - name: mqtt
      port: 1883
      targetPort: 1883
    - name: ws
      port: 8083
      targetPort: 8083
    - name: dashboard
      port: 18083
      targetPort: 18083