Article: A Comprehensive Guide to Installing Prometheus on openSUSE

Prometheus, an open-source monitoring system, is renowned for its multi-dimensional data model, flexible query language, and self-sufficient server nodes. This article provides a step-by-step guide to efficiently install Prometheus on openSUSE. The tutorial assumes a basic understanding of Linux and shell usage. It is also expected that your site is hosted on your own VPS.

Installation Steps

Step 1: System Update

Start by refreshing and updating your system with the zypper package manager:

sudo zypper refresh
sudo zypper update

Step 2: Installing Prometheus

Download the latest Prometheus binary from theofficial website:

wget https://github.com/prometheus/prometheus/releases/download/v2.49.1/prometheus-2.49.1.linux-amd64.tar.gz

Next, extract the file and rename the extracted folder to prometheus-files:

tar -xvf prometheus-2.49.1.linux-amd64.tar.gz
mv prometheus-2.49.1.linux-amd64 prometheus-files

Afterward, move the Prometheus files to the /etc/prometheus directory and assign ownership to the prometheus user:

sudo cp -r prometheus-files/consoles /etc/prometheus
sudo cp -r prometheus-files/console_libraries /etc/prometheus
sudo chown -R prometheus:prometheus /etc/prometheus

Step 3: Configuring Prometheus

Create and edit the prometheus.yml file:

sudo nano /etc/prometheus/prometheus.yml

Embed the given content:

global:
scrape_interval: 10s
scrape_configs:
- job_name: 'prometheus'
scrape_interval: 5s
static_configs:
- targets: ['localhost:9090']

Change the file’s ownership to the prometheus user:

sudo chown prometheus:prometheus /etc/prometheus/prometheus.yml

Step 4: Setting Up Prometheus as a Service

Create a Prometheus service file:

sudo nano /etc/systemd/system/prometheus.service

Add the following content to the file:

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

[Service]
User=prometheus
Group=prometheus
Type=simple
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

[Install]
WantedBy=multi-user.target

Reload the systemd manager configuration:

sudo systemctl daemon-reload

Start the Prometheus service and enable it to start at boot:

sudo systemctl start prometheus
sudo systemctl enable prometheus

Step 5: Installing and Configuring Node Exporter

Node Exporter is a Prometheus exporter for hardware and OS metrics with pluggable metric collectors. It measures various machine resources such as memory, disk I/O, CPU, network, etc.

Download and set up Node Exporter:

wget https://github.com/prometheus/node_exporter/releases/download/v1.7.0/node_exporter-1.7.0.linux-amd64.tar.gz
tar -xvf node_exporter-1.7.0.linux-amd64.tar.gz
mv node_exporter-1.7.0.linux-amd64 node_exporter-files

Copy the Node Exporter binary to /usr/bin and change the ownership to the node_exporter user:

sudo cp node_exporter-files/node_exporter /usr/bin/
sudo chown node_exporter:node_exporter /usr/bin/node_exporter

Create a Node Exporter service file:

sudo nano /etc/systemd/system/node_exporter.service

Add the following configuration:

[Unit]
Description=Node Exporter
After=network.target

[Service]
User=node_exporter
ExecStart=/usr/bin/node_exporter

[Install]
WantedBy=default.target

Reload the systemd manager configuration, start the Node Exporter service, and enable it to start at boot:

sudo systemctl daemon-reload
sudo systemctl start node_exporter
sudo systemctl enable node_exporter

Step 6: Configuring Firewall Rules

If your firewall is enabled and running, add rules to allow access to Prometheus and Node Exporter ports:

sudo firewall-cmd --permanent --zone=public --add-port=9090/tcp
sudo firewall-cmd --permanent --zone=public --add-port=9100/tcp
sudo firewall-cmd --reload

Step 7: Accessing Prometheus Web UI

Once Prometheus is successfully installed, open your web browser and navigate to http://<your-server-ip>:9090. You should see the Prometheus dashboard.

Congratulations! You have successfully installed Prometheus on your openSUSE system. This article has provided a comprehensive guide to ensure a smooth and efficient installation process. For additional information, consult the official Prometheus website.

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