DP-2121: Feat mosquitto

[AlexFernandes-MOVAI]

This pull request introduces a major update to the MQTT Broker container project by adding a dual-broker architecture: a new Mosquitto-based edge broker runs in parallel with the existing HiveMQ-based fleet manager broker. The update includes new Dockerfiles, configuration files, documentation, and health check logic to support both profiles, as well as improvements to monitoring, build processes, and developer guidance.

Key highlights:

• Adds a new Mosquitto edge broker profile with its own Dockerfile, configuration, ports, and health check.
• Updates documentation and changelogs to reflect the new dual-broker design, usage, and migration path.
• Enhances build scripts and CI to support building and running both broker images in parallel.
• Refactors configuration and health check logic for improved maintainability and observability.

---

Dual-Broker Architecture & Service Additions

• Introduced a Mosquitto-based edge broker with its own Dockerfile (Dockerfile.mosquitto), dedicated configuration (config/mosquitto/mosquitto.conf), and health check script (config/health_check.sh). The edge broker exposes ports 1884 (MQTT) and 9001 (WebSocket), runs in parallel with the HiveMQ broker, and is designed for lightweight edge workloads. ([[1]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-a7ef17e07c7bc6c1591cb73db07dbc6b40699bbeb82fb66f17bf4a8489d89f33R1-R24), [[2]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-14eec5571746604f039b78ff67ddf02f3b66db78b9979dc0aca44cc3ad8ea2aeR1-R30), [[3]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-a67e2c90686e9fc0f46ea7b91aa7b8f37f152fa37b23e58419a173274462ac24R1-R39))
• Updated the Makefile and .dockerignore to build and manage both mqtt-broker (HiveMQ) and mqtt-edge-broker (Mosquitto) images, and to ensure all relevant config files are included in the build context. ([[1]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-76ed074a9305c04054cdebb9e9aad2d818052b07091de1f20cad0bbac34ffb52R3-R10), [[2]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-2f754321d62f08ba8392b9b168b83e24ea2852bb5d815d63e767f6c3d23c6ac5R7-R9))

Documentation & Migration

• Expanded README.md and CHANGELOG.md to document the dual-profile architecture, key differences between HiveMQ and Mosquitto, runtime profiles, configuration guidance, monitoring, and migration strategies. Added a migration guide for transitioning from HiveMQ to Mosquitto. ([[1]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5L3-R5), [[2]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R14-R116), [[3]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R127-R184), [[4]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R203-R205), [[5]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-06572a96a58dc510037d5efa622f9bec8519bc1beab13c9f251e97e657a9d4edL8-R26))
• Clarified port mappings, monitoring endpoints, and configuration file locations for both brokers. ([[1]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R14-R116), [[2]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R127-R184))

Configuration & Health Checks

• Refactored the main Dockerfile to only copy HiveMQ-specific configs, install the health check script, and use the unified health check script for both brokers. ([[1]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-dd2c0eb6ea5cfc6c4bd4eac30934e2d5746747af48fef6da689e85b752f39557L17-R20), [[2]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-dd2c0eb6ea5cfc6c4bd4eac30934e2d5746747af48fef6da689e85b752f39557L28-R36))
• Added a robust health_check.sh script that validates MQTT connectivity at the protocol level, used as the health check for both brokers. ([config/health_check.shR1-R39](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-a67e2c90686e9fc0f46ea7b91aa7b8f37f152fa37b23e58419a173274462ac24R1-R39))

Monitoring & InfluxDB

• Added a sample InfluxDB configuration (config/influxdb/influxdb.conf) and updated documentation describing how metrics are collected from both brokers (HiveMQ via extension, Mosquitto via Telegraf and $SYS topics). ([[1]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-dd3f98ca6e6bdf0939438afd812964a3f729ceaefa5a28ad0debadd1e1d97199R1-R67), [[2]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R127-R184))

Versioning & Changelog

• Bumped the version to 1.2.0 to reflect these major changes and documented all new features, changes, and deprecations in CHANGELOG.md. ([[1]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-c157bf6a4fcea5e19ccb39979beb75b999c94a5e950492d7e423760fd4320208L2-R2), [[2]](https://github.com/MOV-AI/containers-mqtt-broker/pull/6/files#diff-06572a96a58dc510037d5efa622f9bec8519bc1beab13c9f251e97e657a9d4edL8-R26))