Quick reference

Maintained by: Michael Oberdorf IT-Consulting

Source code: GitHub

Container image: DockerHub

Supported tags and respective Dockerfile links

• latest, 1.0.2
• 1.0.1
• 1.0.0

Summary

The container image is based on Alpine Linux and sends a curl request result with the mosquitto-client to a MQTT server topic.

Prerequisites to run the docker container

You need an MQTT server to send the data to it.

Configuration

Container configuration

The container grab the configuration via environment variables.

Environment variable name	Description	Required	Default value
MQTT_SERVER	The MQTT server hostname or IP address	OPTIONAL	localhost
MQTT_PORT	The TCP port of the MQTT server	OPTIONAL	1883
MQTT_TLS_enabled	Should SSL communication be enabled (true) or not (false)	OPTIONAL	false
MQTT_CACERT_FILE	If TLS is enabled, the path to the CA certificate file to validate the MQTT server certificate	OPTIONAL
MQTT_TLS_no_hostname_validation	If TLS is enabled, skip the hostname validation of the TLS certificate	OPTIONAL	false
MQTT_USER	The MQTT username for MQTT authentication	OPTIONAL
MQTT_PASSWORD	The MQTT password for MQTT authentication	OPTIONAL
MQTT_PASSWORD_FILE	The filepath where the MQTT password is stored for MQTT authentication	OPTIONAL
MQTT_TOPIC	The MQTT topic to send the speedtest results to	MANDATORY
MQTT_RETAIN	Set the retain flag when publishing the speedtest result to MQTT topic	OPTIONAL	false
REPOSITORIES	A whitespace separated list of dockerhub repositories where to collect the statistics	MANDATORY

Docker compose configuration

services:
  dockerhubstats2mqtt:
    restart: "no"
    user: 5241:5241
    image: oitc/dockerhubstats2mqtt
    environment:
      MQTT_SERVER: test.mosquitto.org
      MQTT_PORT: 1883
      MQTT_TOPIC: com/docker/hub/repositories/metrics
      REPOSITORIES: oitc/dockerhubstats2mqtt oitc/modbus-server

A bigger example can be found here: docker-compose.yaml

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License

Copyright (c) 2025 Michael Oberdorf IT-Consulting

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.