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Aisalkyn Aidarova
Aisalkyn Aidarova

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how to install prometheus

1. Connect to Ubuntu EC2 

ssh -i your-key.pem ubuntu@YOUR_EC2_PUBLIC_IP
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2. Update server 

sudo apt update -y
sudo apt install wget tar -y
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3. Create Prometheus user 

sudo useradd --no-create-home --shell /bin/false prometheus
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4. Create folders 

sudo mkdir /etc/prometheus
sudo mkdir /var/lib/prometheus
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5. Download Prometheus 

cd /tmp
wget https://github.com/prometheus/prometheus/releases/download/v3.5.3/prometheus-3.5.3.linux-amd64.tar.gz
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6. Extract file 

tar -xvf prometheus-3.5.3.linux-amd64.tar.gz
cd prometheus-3.5.3.linux-amd64
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7. Move files 

sudo cp prometheus /usr/local/bin/
sudo cp promtool /usr/local/bin/
sudo cp -r consoles /etc/prometheus
sudo cp -r console_libraries /etc/prometheus
sudo cp prometheus.yml /etc/prometheus/
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8. Set permissions 

sudo chown -R prometheus:prometheus /etc/prometheus
sudo chown -R prometheus:prometheus /var/lib/prometheus
sudo chown prometheus:prometheus /usr/local/bin/prometheus
sudo chown prometheus:prometheus /usr/local/bin/promtool
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9. Create service file 

sudo nano /etc/systemd/system/prometheus.service
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Paste this:

[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
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Save:

CTRL + O
Enter
CTRL + X
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10. Start Prometheus 

sudo systemctl daemon-reload
sudo systemctl start prometheus
sudo systemctl enable prometheus
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11. Check status 

sudo systemctl status prometheus
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You should see:

active (running)
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12. Open port 9090 in AWS

Go to:

EC2 → Security Groups → Inbound rules → Edit inbound rules
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Add:

Type: Custom TCP
Port: 9090
Source: My IP
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13. Open Prometheus in browser 

http://YOUR_EC2_PUBLIC_IP:9090
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14. Test query

In Prometheus search box, type:

up
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Click Execute.

If you see value 1, Prometheus is working.

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