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Harsh Bansal

Harsh Bansal

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Prequisite: A running HiveMQ Cluster and a values.yaml file Install HiveMQ on the AKS cluster

Enable load balancer

  1. Open values.yaml and search for port 1883 under hivemq.ports.port

    Code Block
    ports:
    - name: "mqtt"
      port: 1883
      expose: true
      patch:
        - '[{"op":"add","path":"/spec/selector/hivemq.com~1node-offline","value":"false"},{"op":"add","path":"/metadata/annotations","value":{"service.spec.externalTrafficPolicy":"Local"}}]'
        # If you want Kubernetes to expose the MQTT port to external traffic
        # - '[{"op":"add","path":"/spec/type","value":"LoadBalancer"}]'

  2. Uncomment and expose the loadbalancer

    Code Block
    ports:
    - name: "mqtt"
      port: 1883
      expose: true
      patch:
        - '[{"op":"add","path":"/spec/selector/hivemq.com~1node-offline","value":"false"},{"op":"add","path":"/metadata/annotations","value":{"service.spec.externalTrafficPolicy":"Local"}}]'
        # If you want Kubernetes to expose the MQTT port to external traffic
        - '[{"op":"add","path":"/spec/type","value":"LoadBalancer"}]'

  3. Save the file and apply the changes

    Code Block
    helm upgrade hivemq --install hivemq/hivemq-operator --values values.yaml

  4. Check if the service for port 1883 has an external IP address now (in our case its hivemq-hivemq-mqtt)

    Code Block
    kubectl get services

In case the external IP is not visible, you can uninstall hivemq and reinstall it again.

  1. Uninstall HiveMQ
    helm uninstall hivemq

  2. Reapply the changes
    helm upgrade hivemq --install hivemq/hivemq-operator --values values.yaml

Connect To Your HiveMQ Cluster

  • Once your HiveMQ cluster is up and running, you are ready to connect clients to the cluster with the MQTT-CLI. To obtain the exposed ENDPOINT of the created load balancer on which clients connect to your cluster, enter:

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