Prometheus Install

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Prometheus is an open-source monitoring system with a built-in noSQL time-series database. It offers a multi-dimensional data model, a flexible query language, and diverse visualization possibilities. Prometheus collects metrics from http nedpoint. Most service dind’t have this endpoint so you need optional programs that generate additional metrics cald exporters.

In this tutorial, you’ll install, configure, and secure Prometheus and Node Exporter to generate metrics about your server’s performance.

Download Prometheus

curl -LO "https://github.com/prometheus/prometheus/releases/download/v2.2.1/prometheus-2.2.1.linux-amd64.tar.gz"
tar -xzf prometheus-2.2.1.linux-amd64.tar.gz

Install binaris

cp prometheus-*linux-amd64/prometheus /usr/local/bin/
cp prometheus-*linux-amd64/promtool /usr/local/bin/

useradd --no-create-home --shell /bin/false prometheus

mkdir /etc/prometheus
mkdir /var/lib/prometheus

chown prometheus:prometheus /var/lib/prometheus
chown prometheus:prometheus /usr/local/bin/prometheus
chown prometheus:prometheus /usr/local/bin/promtool

cp -r prometheus-*linux-amd64/consoles /etc/prometheus
cp -r prometheus-*linux-amd64/console_libraries /etc/prometheus

chown -R prometheus:prometheus /etc/prometheus/consoles
chown -R prometheus:prometheus /etc/prometheus/console_libraries

cp prometheus-*linux-amd64/prometheus.yml /etc/prometheus/
chown -R prometheus:prometheus /etc/prometheus/prometheus.yml

Create servis for prometheus

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

Configure Prometheus

nano /etc/prometheus/prometheus.yml

global:
  scrape_interval: 15s

scrape_configs:
  - job_name: 'prometheus'
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:9090']
systemctl daemon-reload
systemctl start prometheus
systemctl status prometheus
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