How to Install Prometheus on CentOS 7


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Installing Prometheus on CentOS 7

Prometheus is an open-source monitoring and alerting system that allows you to collect and store metrics from various systems and services. It provides a powerful query language, a flexible data model, and an easy-to-use web interface for visualizing and exploring collected data.

Here are the steps to install Prometheus on CentOS 7:

sudo yum update -y
sudo useradd -M -r -s /bin/false prometheus
cd /tmp wget https://github.com/prometheus/prometheus/releases/download/v2.33.1/prometheus-2.33.1.linux-amd64.tar.gz tar xvf prometheus-2.33.1.linux-amd64.tar.gz
sudo mv prometheus-2.33.1.linux-amd64/{prometheus,promtool} /usr/local/bin/ sudo mv prometheus-2.33.1.linux-amd64/{consoles,console_libraries} /etc/prometheus/
sudo chown -R prometheus:prometheus /usr/local/bin/{prometheus,promtool} sudo chown -R prometheus:prometheus /etc/prometheus/{consoles,console_libraries}
sudo nano /etc/prometheus/prometheus.yml
global:   scrape_interval: 15s  scrape_configs:   - job_name: 'prometheus'     scrape_interval: 5s     static_configs:       - targets: ['localhost:9090']
sudo nano /etc/systemd/system/prometheus.service
[Unit] Description=Prometheus Documentation=https://prometheus.io/docs/introduction/overview/ 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
sudo systemctl daemon-reload sudo systemctl start prometheus sudo systemctl enable prometheus
  1. Update system packages:
  2. Create a new system user for Prometheus:
  3. Download and extract the Prometheus tarball:
  4. Move the extracted files to the appropriate locations:
  5. Set ownership and permissions:
  6. Create a configuration file for Prometheus:
  7. Add the following basic configuration to the file:
  8. Save and close the file.
  9. Create a systemd service file for Prometheus:
  10. Add the following service definition:
  11. Save and close the file.
  12. Reload systemd and start Prometheus:

After completing these steps, Prometheus should be up and running on your CentOS 7 system. You can access the web interface by visiting http://localhost:9090.

Remember to configure appropriate firewall rules and secure access to Prometheus as needed for your specific environment.

I hope this guide helps you successfully install Prometheus on CentOS 7!

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