setup the best light system matrix server with Telegraf + InfluxDB + Grafana

🖥️ 1. Central Server Setup (InfluxDB + Grafana)

sudo apt update
sudo apt install influxdb influxdb-client -y
sudo systemctl enable influxdb
sudo systemctl start influxdb

Check status:

systemctl status influxdb

Create Database for Metrics

influx
CREATE DATABASE telegraf
CREATE USER telegraf WITH PASSWORD 'yourpassword'
GRANT ALL ON telegraf TO telegraf
EXIT

Install Grafana

sudo apt-get install -y apt-transport-https software-properties-common
sudo mkdir -p /etc/apt/keyrings/
wget -q -O - https://packages.grafana.com/gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/grafana.gpg

echo "deb [signed-by=/etc/apt/keyrings/grafana.gpg] https://packages.grafana.com/oss/deb stable main" | sudo tee /etc/apt/sources.list.d/grafana.list
sudo apt update
sudo apt install grafana -y
sudo systemctl enable grafana-server
sudo systemctl start grafana-server

Access Grafana:
👉 http://your-central-server:3000
(Default login: admin / admin)

*Can setup a domain using caddy

🖥️ 2. Telegraf Setup on Each Server

sudo apt update
sudo apt install telegraf -y
sudo systemctl enable telegraf

📄 Minimal Telegraf Config (/etc/telegraf/telegraf.conf)

[agent]
  interval = "10s"
  round_interval = true
  metric_batch_size = 1000
  metric_buffer_limit = 10000
  collection_jitter = "0s"
  flush_interval = "10s"
  flush_jitter = "0s"
  precision = ""
  debug = false
  quiet = false
  logfile = ""
###############################################################################
#OUTPUTS
###############################################################################
[[outputs.influxdb]]
  urls = ["http://YOUR_CENTRAL_SERVER_IP:8086"]
  database = "telegraf"
  username = "telegraf"
  password = "yourpassword"
###############################################################################
#INPUTS
###############################################################################
#CPU metrics
[[inputs.cpu]]
  percpu = true
  totalcpu = true
  collect_cpu_time = false
  report_active = true
#Memory usage
[[inputs.mem]]
#Disk usage
[[inputs.disk]]
  ignore_fs = ["tmpfs", "devtmpfs", "overlay"]
#Network stats
[[inputs.net]]
#System load & uptime
[[inputs.system]]

Save file → Restart Telegraf then Verify logs

sudo systemctl restart telegraf
sudo journalctl -u telegraf -f

Successfully wrote metrics - should be the output.