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How to Install and Configure Prometheus and Grafana on Ubuntu

How to Install and Configure Prometheus and Grafana on Ubuntu
How to Install and Configure Prometheus and Grafana on Ubuntu

To install and configure Prometheus and Grafana on Ubuntu, start by updating your package lists and installing Prometheus. You can do this by adding the Prometheus repository and running apt-get install prometheus. Next, configure Prometheus by editing its configuration file to include the targets you want to monitor. After Prometheus is set up, install Grafana by downloading the latest .deb package from the Grafana website and installing it with dpkg -i. Once Grafana is installed, access its web interface and add Prometheus as a data source. Finally, create dashboards in Grafana to visualize the metrics collected by Prometheus.

How to Download and Install Prometheus– Ubuntu

First, we are going to install Prometheus on our monitoring Linux server.

wget https://github.com/prometheus/prometheus/releases/download/v2.37.6/prometheus-2.37.6.linux-amd64.tar.gz
Ubuntu

then extract the Prometheus zip file

tar -xvfz prometheus-*.tar.gz

now Create two directories for Prometheus to use

mkdir /etc/prometheus /var/lib/prometheus

go to the downloaded Prometheus directory

cd prometheus-2.37.6.linux-amd64

and move Prometheus and promtool directories into /usr/local/bin/

mv prometheus promtool /usr/local/bin/

move the prometheus.yml, consoles, and console_libraries into the /etc/prometheus/

mv prometheus.yml console* /etc/prometheus/

Edit the prometheus.yml file and change localhost:9050 with your-ip:9050

Ubuntu

Verify our Prometheus is successfully installed

prometheus --version

How to Configure Prometheus

Create a Prometheus user with the following command:

useradd -rs /bin/false prometheus

create a Prometheus service file with the following command:

vim /etc/systemd/system/prometheus.service

edit with the following content

[Unit]
Description=Prometheus
Wants=network-online.target
After=network-online.target

[Service]
User=prometheus
Group=prometheus
Type=simple
Restart=on-failure
RestartSec=5s
ExecStart=/usr/local/bin/prometheus \
    --config.file /etc/prometheus/prometheus.yml \
    --storage.tsdb.path /var/lib/prometheus/ \
    --web.console.templates=/etc/prometheus/consoles \
    --web.console.libraries=/etc/prometheus/console_libraries \
    --web.listen-address=0.0.0.0:9050 \
    --web.enable-lifecycle \
    --log.level=info

[Install]
WantedBy=multi-user.target

give ownership to Prometheus directories

chown -R prometheus: /etc/prometheus /var/lib/prometheus

reload daemon with the following command:

systemctl daemon-reload

Enable Prometheus with the following command:

systemctl enable prometheus

start the Prometheus service and check the status with the following command:

systemctl start prometheus
systemctl status prometheus

Access the Prometheus web interface with the following URL:

http://local_ip_addr:9050

Replace local_ip_addr with the IP of the monitoring server

now you can see the following interface:

Install and Configure the node_exporter on client-server

download the node_exporter file on client-server

wget https://github.com/prometheus/node_exporter/releases/download/v1.5.0/node_exporter-1.5.0.linux-amd64.tar.gz

Extract the file

tar -xvfz node_exporter-*.tar.gz

move node_exporter file to /usr/local/bin

mv node_exporter-1.5.0.linux-amd64/node_exporter/usr/local/bin

run the Node Exporter using the following command on the screen:

screen -R 
node_exporter

now you can see the following:

create a node_exporter user

useradd -rs /bin/false node_exporter

create a service file for node_exporter.service

vim /etc/systemd/system/node_exporter.service
[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target

[Service]
User=node_exporter
Group=node_exporter
Type=simple
Restart=on-failure
RestartSec=5s
ExecStart=/usr/local/bin/node_exporter

[Install]
WantedBy=multi-user.target

create the symlink of node_exporter with the following command:

systemctl enable node_exporter

activate the service with the following commands:

systemctl daemon-reload
systemctl restart node_exporter
systemctl status node_exporter

Configure Prometheus to Monitor Client Nodes

go to the monitoring server and open prometheus.yml to configure the client

vim /etc/prometheus/prometheus.yml

and add the following details:

...
- job_name: "remote_collector"
  scrape_interval: 10s
  static_configs:
    - targets: ["remote_addr:9100"]

restart the Prometheus service

systemctl restart prometheus

now go to the Prometheus web interface, click Status and go to Targets

There, you can see both servers are up and running

Install and Configure the Grafana Server

install required packages

apt-get install -y apt-transport-https software-properties-common

Download the Grafana key with the following command:

wget -q -O /usr/share/keyrings/grafana.key https://apt.grafana.com/gpg.key

Add the Grafana stable releases repository

echo "deb [signed-by=/usr/share/keyrings/grafana.key] https://apt.grafana.com stable main" | sudo tee -a /etc/apt/sources.list.d/grafana.lis

Update the apt packages

apt-get update

Install the Grafana

apt-get install grafana

Reload the daemon

systemctl daemon-reload

start and enable the Grafana server

systemctl enable grafana-server
systemctl restart grafana-server

check the status of the Grafana server

systemctl status grafana-server

How to Integrate Grafana and Prometheus

Open the Grafana web interface with 3000 port

http://remote-server-ip:3000

now you can see the following interface:

fill in the default user and password is admin and then set a new password

now you can see the following interface:

click on three-line symbol, then go to Connection and click on Data sources

click on Prometheus

Fill the details

then click on save and test

Ubuntu

How to Import a Grafana Dashboard

Visit the Grafana Dashboard with the following link:

https://grafana.com/grafana/dashboards
Ubuntu

then search Node Exporter in the search box and click on Node Exporter Full

Ubuntu

then copy the ID

Ubuntu

go to the home page and click on the + icon, then click on Import dashboard

Ubuntu

paste copied ID in Import via grafana.com and click on load

Ubuntu

Then choose Prometheus as the data source and click the Import button

Now you can see Grafana displays the performance metrics and state of the client node, including the memory, RAM, and CPU details.

Ubuntu

Same the following steps you can configure many clients on this tool and monitor them.

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