Set up Mosquitto with the Aspire integration

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⭐ Community Toolkit

Use the Mosquitto hosting integration to run Eclipse Mosquitto as an Aspire container resource. For a short introduction, see Get started with the Mosquitto integration.

Installation

aspire add communitytoolkit-mosquitto

La CLI de Aspire es interactiva; asegúrate de seleccionar el resultado adecuado cuando se te pida:

Select an integration to add:

> communitytoolkit-mosquitto (CommunityToolkit.Aspire.Hosting.Mosquitto)
> Other results listed as selectable options...

#:package CommunityToolkit.Aspire.Hosting.Mosquitto@*

<PackageReference Include="CommunityToolkit.Aspire.Hosting.Mosquitto" Version="*" />

import { createBuilder } from './.aspire/modules/aspire.mjs';

const builder = await createBuilder();
const mqtt = await builder.addMosquitto('mqtt');

const api = await builder.addProject('api', '../Api/Api.csproj');
await api.withReference(mqtt);
await api.waitFor(mqtt);

await builder.build().run();

var builder = DistributedApplication.CreateBuilder(args);
var mqtt = builder.AddMosquitto("mqtt");

builder.AddProject<Projects.Api>("api")
    .WithReference(mqtt)
    .WaitFor(mqtt);

// After adding all resources, run the app...
builder.Build().Run();

The resource exposes the MQTT protocol endpoint on container port 1883. Aspire assigns a host port unless you specify port. The generated connection string uses mqtt://host:port. The integration’s health check attempts an MQTT connection and reports healthy only after the broker accepts it.

Persist broker data

The container stores state under /mosquitto/data. A volume preserves it independently of the container. A bind mount makes the files accessible from the host.

TypeScript
C#

const mqtt = await builder.addMosquitto('mqtt');
await mqtt.withDataVolume();
// Or use a host directory:
// await mqtt.withDataBindMount('./mosquitto-data');

var mqtt = builder.AddMosquitto("mqtt")
    .WithDataVolume();
// Or use a host directory:
// var mqtt = builder.AddMosquitto("mqtt")
//     .WithDataBindMount("./mosquitto-data");

Customize broker configuration

The default mosquitto.conf listens on port 1883, permits anonymous connections, and persists state under /mosquitto/data. Replace it with a configuration appropriate to your environment by copying a local configuration directory into the container:

var mqtt = builder.AddMosquitto("mqtt")
    .WithContainerFiles("/mosquitto/config", "./mosquitto-config");

Keep authentication and listener settings aligned with the applications that connect to the broker. The default anonymous configuration is intended for local development, not an exposed production broker.

AppHost API

Method	Purpose
`AddMosquitto` / `addMosquitto`	Add an MQTT broker, optionally pinning the host port.
`WithDataVolume` / `withDataVolume`	Persist Mosquitto data in a named volume.
`WithDataBindMount` / `withDataBindMount`	Persist Mosquitto data in a host directory.