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InstallPrometheus.md

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Prometheus Installation and Configuration

Verify available versions

sudo apt-cache policy prometheus

Create Prometheus user

sudo useradd -M -r -s /bin/false prometheus

Create Prometheus directories

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

Download binaries

wget https://github.com/prometheus/prometheus/releases/download/v2.30.3/prometheus-2.30.3.linux-amd64.tar.gz

Extract and Install

tar xzf prometheus-2.30.3.linux-amd64.tar.gz  
sudo cp prometheus-2.30.3.linux-amd64/{prometheus,promtool} /usr/local/bin/  
sudo chown prometheus:prometheus /usr/local/bin/{prometheus,promtool}  
sudo cp -r prometheus-2.30.3.linux-amd64/{consoles,console_libraries} /etc/prometheus/

Setup Prometheus configuration

sudo cp prometheus-2.30.3.linux-amd64/prometheus.yml /etc/prometheus/prometheus.yml  
sudo nano /etc/prometheus/prometheus.yml

Configuration section for scraping

    static_configs:  
    - targets: ['localhost:9091']  
  
  - job_name: 'Axelar-Validator'  
    static_configs:  
      - targets: ['localhost:26660']  
        labels:  
          group: 'Validator'  
  
  - job_name: node  
    static_configs:  
      - targets: ['localhost:9100']

Set the user and group ownership on the configuration file

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

Create a systemd file for Prometheus - in this scenario Prometheus uses 9091 as listen port

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

Now copy the section below:

[Unit]  
Description=Prometheus Time Series Collection and Processing Server  
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\  
    --web.listen-address="0.0.0.0:9091"  
  
[Install]  
WantedBy=multi-user.target

Enable Prometheus at startup

sudo systemctl enable prometheus

Start Prometheus service

sudo systemctl start prometheus

Check the status of the Prometheus service

sudo systemctl status prometheus