Simple Dockerfile & composition to run a speedtest2mqtt setup using librespeed-cli from https://github.com/librespeed/speedtest-cli

README.md

Download the latest release of librespeed-cli for your target architecture and unpack the librespeed-cli binary into the build directory. Build and fire up the container stack with docker-compose up --build -d.

Configuration can be done through environment variables in docker-compose.yml:

• MQTT_HOST - mqtt server, defaults to localhost
• MQTT_ID - id to use for connecting to mqtt server, defaults to speedtest
• MQTT_TOPIC - topic to push data to, defaults to speedtest/status
• MQTT_OPTIONS - additional mqtt options, defaults to -V mqttv311
• MQTT_USER - user for mqtt server
• MQTT_PASS - password for mqtt server
• SPEEDTEST_OPTIONS - additional options for libretest-cli, see here for possible options
• SPEEDTEST_INTERVAL - interval in which to run speedtest, in seconds, defaults to 60

Configuration of sensors in Home Assistant:

sensor:
  - platform: mqtt
    state_topic: speedtest/status
    unit_of_measurement: ms
    icon: mdi:speedometer
    name: Speedtest Ping
    value_template: "{{ value_json.ping }}"

  - platform: mqtt
    state_topic: speedtest/status
    unit_of_measurement: Mbit/s
    icon: mdi:speedometer
    name: Speedtest Download
    value_template: "{{ value_json.download }}"    

  - platform: mqtt
    state_topic: speedtest/status
    unit_of_measurement: Mbit/s
    icon: mdi:speedometer
    name: Speedtest Upload
    value_template: "{{ value_json.upload }}"

docker-compose.yml

version: "2.1"

services:
  librespeed:
    build: librespeed
    container_name: librespeed
    hostname: librespeed.nas.lan
    environment:
      - SPEEDTEST_INTERVAL=1200

Dockerfile

FROM alpine:3.7

ADD entrypoint.sh /opt/speedtest2mqtt.sh
COPY librespeed-cli /usr/bin/librespeed-cli

RUN apk update && \
    apk add ca-certificates mosquitto-clients jq && \
    rm -rf /var/cache/apk/* && \
    chmod 777 /opt/speedtest2mqtt.sh

ENTRYPOINT ["/opt/speedtest2mqtt.sh"]

entrypoint.sh

#!/bin/sh

MQTT_HOST=${MQTT_HOST:-localhost}
MQTT_ID=${MQTT_ID:-speedtest}
MQTT_TOPIC=${MQTT_TOPIC:-speedtest/status}
MQTT_OPTIONS=${MQTT_OPTIONS:-"-V mqttv311"}
MQTT_USER=${MQTT_USER:-""}
MQTT_PASS=${MQTT_PASS:-""}

SPEEDTEST_OPTIONS=${SPEEDTEST_OPTIONS:-""}
SPEEDTEST_INTERVAL=${SPEEDTEST_INTERVAL:-60}

SPEEDTEST_CMD="librespeed-cli --json $SPEEDTEST_OPTIONS"
MQTT_CMD="/usr/bin/mosquitto_pub"

while true; do
    echo "Running $SPEEDTEST_CMD..."
    output=$($SPEEDTEST_CMD)
    exitcode=$?

    echo "--- Output: -------------------------------------------------"
    echo $output
    echo "-------------------------------------------------------------"

    if [ $exitcode -eq 0 ]; then
        download=$(echo $output | jq .download)
        upload=$(echo $output | jq .upload)
        ping=$(echo $output | jq .ping)

        payload="{\"upload\": $upload, \"download\": $download, \"ping\": $ping}"

        echo
        echo "--- Parsed result -------------------------------------------"
        echo "Ping: $ping ms"
        echo "Download: $download MBit/s"
        echo "Upload: $upload MBit/s"
        echo "-------------------------------------------------------------"
        echo "Payload: $payload"
        echo "-------------------------------------------------------------"

        echo
        echo "Sending data to MQTT @ $MQTT_HOST/$MQTT_TOPIC..."

        echo $payload | $MQTT_CMD -h ${MQTT_HOST} -i ${MQTT_ID} -l -t ${MQTT_TOPIC} ${MQTT_OPTIONS} -u ${MQTT_USER} -P ${MQTT_PASS}
    fi

    echo
    echo "Sleeping $SPEEDTEST_INTERVAL seconds..."
    echo

    sleep $SPEEDTEST_INTERVAL
done