Grafana InfluxDb & Telegraf Installation in Proxmox CT (Ubuntu 20 and above)

Grafana InfluxDb & Telegraf Installation

Grafana Installation

1. Update system

sudo apt update && sudo apt upgrade

2. Add Grafana gpg key which allows you to install signed packages.

sudo apt-get install -y gnupg2 curl software-properties-common
curl https://packages.grafana.com/gpg.key | sudo apt-key add -

3. Then Add Grafana APT repository.

sudo add-apt-repository "deb https://packages.grafana.com/oss/deb stable main"

4. Once the repository is added, proceed to update your Apt repositories and install Grafana.

sudo apt-get update

sudo apt-get -y install grafana

5. Start Grafana service.

sudo systemctl enable grafana-server

6. systemctl status grafana-server.service.

• The output would be:

  **grafana-server.service - Grafana instance Loaded: loaded (/usr/lib/systemd/system/grafana-server.service; disabled; vendor preset: enabled) Active: active (running) since Sun 2020-01-19 13:01:06 UTC; 17s ago Docs: http://docs.grafana.org Main PID: 15616 (grafana-server) Tasks: 10 (limit: 2362) CGroup: /system.slice/grafana-server.service └─15616 /usr/sbin/grafana-server --config=/etc/grafana/grafana.ini --pidfile=/var/run/grafana/grafana-server.pid --packaging=deb cfg:default.**

7. Grafana default http port is 3000, you’ll need to allow access to this port on the firewall. Ubuntu comes with ufw firewall. For Debian, you can install it using:

sudo apt -y install ufw

sudo ufw enable

sudo ufw allow ssh

sudo ufw allow 3000/tcp

8. Access Grafana Dashboard using the server IP address or hostname and port 3000.

• http://localhost:3000/ (use your IP instead of local host) for eg http://127.0.0.1:3000/.
  • Default logins are admin for both Username & Password.

InfluxDb Installation

1. Import GPG key.

sudo curl -sL https://repos.influxdata.com/influxdb.key | sudo apt-key add -

2. Then Add InfluxDb APT repository.

echo "deb https://repos.influxdata.com/ubuntu focal stable" | sudo tee /etc/apt/sources.list.d/influxdb.list

3. Once the repository is added, proceed to update your Apt repositories and install InfluxDb.

sudo apt-get update

sudo apt-get install influxdb

4. Start and enable the service to start on boot up.

sudo systemctl enable influxdb

5. systemctl status influxdb

• The output would be:

  **influxdb.service - InfluxDB is an open-source, distributed, time series database Loaded: loaded (/lib/systemd/system/influxdb.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2020-05-05 21:50:57 CEST; 23s ago Docs: man:influxd(1) Main PID: 1752 (influxd) Tasks: 9 (limit: 2286) Memory: 3.5M CGroup: /system.slice/influxdb.service └─1752 /usr/bin/influxd -config /etc/influxdb/influxdb.conf**

6. If you need http authentication, modify influxdb http section to contain the following.

sudo vim /etc/influxdb/influxdb.conf

• [http]
  • auth-enabled = true
• Then restart influxdb service

sudo systemctl restart influxdb

7. Create a user telegraf with an authentication password.

curl -XPOST "http://localhost:8086/query" \
  --data-urlencode "q=CREATE USER telegraf WITH PASSWORD 'strongpassword' WITH ALL PRIVILEGES"

• Replace:
  • username with your own username
  • strongpassword with your own password (note that the password requires single quotes)

8. Whenever you need to run any influxdb commands on the terminal, you need to specify username using -username and password using -password options.

• influx -username 'username' -password 'password'

9. Create a Database telegraf.

• influx -username 'telegraf' -password 'strongpassword'
• Type create databse telegraf
• Type show databases to verify the database.
• Then type exit.

Telegraf Agent Installation

Note: Installation of the Telegraf package may require root or administrator privileges in order to complete successfully.

1. Install Telegraf from the InfluxData repository with the following commands.

wget -qO- https://repos.influxdata.com/influxdb.key | sudo tee /etc/apt/trusted.gpg.d/influxdb.asc >/dev/null
source /etc/os-release

echo "deb https://repos.influxdata.com/${ID} ${VERSION_CODENAME} stable" | sudo tee /etc/apt/sources.list.d/influxdb.list

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

Telegraf Agent Configuration

1. Create a file named my_config_telegraf.conf in /etc/telegraf/telegraf.d/ directory and then run the following command.

telegraf config -input-filter cpu:mem:disk:swap:system:net:netstat -output-filter influxdb > my_config_telegraf.conf

2. Edit my_config_telegraf.conf file and search and set the options mentioned below.

• Config File: my_config_telegraf.conf

• Global Agent Configuration

  • [agent]
  • hostname = "Grafana" (should be set "" empty so system would take the name on its own or you can specify tha name of your host.
  • flush_interval = "10s"
  • interval = "10s"

• 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" ] (The url of your localhost)
  • username = "telegraf"
  • password = "myP@ssw0rd" Remove "/" between brackets while searching.