======An internet Speed test to ""InfluxDB"" with Docker======

=====Versions=====
V1.1 2021-04-12 Added mosquitto_pub and publish data to MQTT as well as influbdb

=====Summary=====
Uses the Ookla speedtest cli to test the internet connection regularly, and push the results to influx db & MQTT.

=====Notes=====
An influx db instance must already be running somewhere, and the database created.

Simplified from a bunch of similar projects - the ones I found had multiple container builds with influx/grafana included, or logged to a csv and I'd then need to use telegraf to push to the db. I just wanted something that ran from a script and pushed to influxdb via http directly.

=====""ToDo""=====
- add secrets for hostname etc in ENV
- improve grep mess
- run as non root
- replace curl with wget
- stick in a git repo
- Needs some error control to be sure it is still running
- Needs timeout checks and maybe round robin on servers?
- Should log latency also
- Have it test 'on the minute' rather than just in a loop? (maybe use cron)
- Have some randomness built in to test times
- Also log current bandwidth being used for my network overall?
- ++add MQTT as well as influxdb support++

=====Refs and similar projects=====
**Ookla speedtest cli**: https://www.speedtest.net/apps/cli

This was the most useful and code was borrowed from here:
**internet-speedtest-docker**: https://www.github.com/pedrocesar-ti/internet-speedtest-docker
A forked/slimmed version of the above:
**internet-speedtest-docker** https://hub.docker.com/r/kjake/internet-speedtest-docker
**docker-speedtest-analyser**: https://www.github.com/roest01/docker-speedtest-analyser
**speedy**: https://github.com/stefanwalther/speedy
----
=====dockerfile=====
%%(bash;;dockerfile)
FROM python:2-alpine

RUN mkdir -p /app
RUN apk add --no-cache curl
RUN apk add --no-cache mosquitto-clients
RUN wget -O /app/speedtest-cli https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py
RUN chmod +x /app/speedtest-cli
COPY test_internet.sh /app/test_internet.sh
CMD ["sh","/app/test_internet.sh"]
%%


=====docker-compose.yml=====
%%(text;;docker-compose.yml)
version: '3.3'
services:
speedtest:
build: .
volumes:
- "/dockervolumes/speedtest/data:/app/data"
- "/etc/localtime:/etc/localtime:ro"
- "/etc/timezone:/etc/timezone:ro"
container_name: speedtest
hostname: speedtest
restart: unless-stopped
%%

=====test_internet.sh=====
%%(bash;;test_internet.sh)
#!/bin/sh

# V1.1 2021-04-12 Added mosquitto_pub and publish data to MQTT as well as influbdb

FILE="/data/test_internet.log"
MQTT_TOPIC="maintopic/SubTopic"
SERVER_ADDRESS="192.168.X.X"
TEST_INTERVAL=30

while true
do
TIMESTAMP=$(date '+%s')

/app/speedtest-cli > $FILE

DOWNLOAD=$(cat $FILE | grep "Download:" | awk -F " " '{print $2}')
UPLOAD=$(cat $FILE | grep "Upload:" | awk -F " " '{print $2}')
echo "Download: $DOWNLOAD Upload: $UPLOAD $TIMESTAMP"
curl -i -XPOST http://$SERVER_ADDRESS:8086/write?db=speedtest --data-binary "download,host=local value=$DOWNLOAD"
curl -i -XPOST http://$SERVER_ADDRESS:8086/write?db=speedtest --data-binary "upload,host=local value=$UPLOAD"
mosquitto_pub -h $SERVER_ADDRESS -t $MQTT_TOPIC -m '{ "DownloadSpeed" : '$DOWNLOAD' , "UploadSpeed" : '$UPLOAD' }'
sleep $TEST_INTERVAL

done


%%

--
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