Install Telegraf and configure for InfluxDB

Video Lecture

Description

Now to install the Telegraf agent and configure the output plugin to save data into the InfluxDB.

sudo apt install telegraf -y

Start Telegraf and ensure it starts in case of reboot.

sudo systemctl start telegraf
sudo systemctl status telegraf

Navigate to the telegraf config folder and backup the existing config.

cd /etc/telegraf/
mv telegraf.conf telegraf.conf.default

Create a new telegraf.conf

rm telegraf.conf
sudo nano telegraf.conf

and copy and paste script below into new telegraf.conf

# Global Agent Configuration
[agent]
  hostname = "127.0.0.1"
  flush_interval = "15s"
  interval = "15s"


# Input Plugins
[[inputs.cpu]]
    percpu = true
    totalcpu = true
    collect_cpu_time = false
    report_active = false
[[inputs.disk]]
    ignore_fs = ["tmpfs", "devtmpfs", "devfs"]
[[inputs.io]]
[[inputs.mem]]
[[inputs.net]]
[[inputs.system]]
[[inputs.swap]]
[[inputs.netstat]]
[[inputs.processes]]
[[inputs.kernel]]

# Output Plugin InfluxDB
[[outputs.influxdb]]
  database = "telegraf"
  urls = [ "http://127.0.0.1:8086" ]
  username = "telegraf"
  password = "password"

Save, restart Telegraf, and check status.

sudo service telegraf restart
sudo service telegraf status

Check that Telegraf is working with the new config by printing some values.

sudo telegraf -test -config /etc/telegraf/telegraf.conf

See the video for an example of exploring the new data source in Grafana.