Installing Telegraf on DietPi / ARM (Revised)

Today I would like to cover getting up and running with Telegraf on my SBC computers, namely most arm/arm64 based Debian distros.

This will be a brief post just covering the commands \ “hacks” used to get it all sorted.

Uninstalling (Optional)

I had initially done a manual installation of Telegraf which needed to be removed:

systemctl stop telegraf.service
systemctl disable telegraf.service
systemctl daemon-reload

Installing from influxdata.com

These steps are summarised from the official documentation.

Add the influxdb.key key:

wget -qO- https://repos.influxdata.com/influxdb.key | sudo apt-key add -

Create a source entry for influxdb.list:

echo "deb [arch=arm64] https://repos.influxdata.com/debian stretch stable" | sudo tee /etc/apt/sources.list.d/influxdb.list

Note: depending on your SBC architecture you may need to replace [arch=arm64] with [arch=armel] or [arch=armhf]! You can get your CPU architecture by running cat /proc/cpuinfo

Run apt-get update and install required dependencies:

sudo apt-get update && sudo apt-get install apt-transport-https

Install telegraf:

sudo apt-get update && sudo apt-get install telegraf

Configuration

By default the configuration file can be found at /etc/telegraf/telegraf.conf.

You will need to edit this file to point Telegraf to your local InfluxDb server and add any modules you require:

nano /etc/telegraf/telegraf.conf

Running as a service

Enabling the telegraf service should be as easy as issuing the following commands:

systemctl start telegraf
systemctl status telegraf

Optionally you can run the below command to enable the service if it was not done as part of the installation:

systemctl enable telegraf

Notes

The official repository I used for discovering the supported CPU architectures is here: https://repos.influxdata.com/debian/dists/stretch/stable/.

Once running you should start seeing your hosts appearing in Chronograf.

Hopefully you found this post helpful and as always, I welcome any comments, questions and feedback.