Configure MoP
MQTT on Pulsar (MoP) is a protocol handler developed by StreamNative to natively support the MQTT protocol on the Pulsar broker. By adding the MoP protocol handler to your existing Pulsar cluster, you can now migrate your existing MQTT applications and services to Pulsar without modifying the code.
Enable MoP
This section describes how to enable MoP on StreamNative Platform.
Prerequisites for enabling MoP
sn-platform
chart: 1.4.0 or higherpulsar-operator
chart: 0.10.0 or higher
Procedure
To enable MoP within a Kubernetes cluster, you can set broker.mop.enabled
and broker.mop.proxyEnabled
to true
in the values.yaml
YAML file as follows and use the helm upgrade
command to update the resource.
-
Enable MoP.
-
(Optional) If you want to enable authentication and authorization, set the
broker.mop.authenticationEnabled
andbroker.mop.authorizationEnabled
totrue
in thevalues.yaml
YAML file as follows.
MoP inherits all the authentication and authorization methods from the Pulsar broker configurations.
-
Apply the new configuration.
Connect to your Pulsar cluster using Eclipse Mosquitto
You can use any client that supports the MQTT protocol to publish data into Pulsar. This section shows how to use the Eclipse Mosquitto MQTT CLI tool to connect to a Pulsar cluster and then produce and consume messages to and from the Pulsar cluster.
Prerequisites
- Install StreamNative Platform and run a Pulsar cluster. For details, see deploy StreamNative Platform.
- Enable MoP. For details, see enable MoP.
- Get the Web service URL of your Pulsar cluster or broker service and the token used to access your Pulsar cluster. For details, see prepare to connect to Pulsar clusters.
Steps
To connect to a Pulsar cluster using the Eclipse Mosquitto MQTT CLI tool, follow these steps.
-
Deploy an Eclipse Mosquitto Pod.
a. Define an Eclipse Mosquitto as below and save the YAML file (
pod.yaml
).b. Apply your configurations.
-
Subscribe to messages from the Pulsar cluster.
a. Open a new terminal window and enter the Eclipse Mosquitto Pod.
b. Subscribe to messages from the Pulsar cluster.
If you have enabled authentication, use the token as the password. The username can be any string.
-
Publish messages to the Pulsar cluster.
a. Open a new terminal window and enter the Eclipse Mosquitto Pod.
b. Publish messages to the Pulsar cluster.
If you have enabled authentication, execute the following command.