How to install Prometheus 2.30.3 Server in Ubuntu 20.04

In this guide, we will learn how to install the Prometheus server on Ubuntu 20.04. Prometheus is an open-source system monitoring and alerting toolkit. Prometheus collects and stores its metrics as time-series data. Metrics information is stored with the timestamp at which it was recorded, alongside optional key-value pairs called labels.

And now you are wondering what are metrics? Metrics are numeric measurements and time series mean that the changes are recorded over time.


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Install Prometheus 2.30

Let us update the system first:

$ sudo apt update

Download and install Prometheus

Download the latest release of 2.30.3 into our system.

$ wget

After the download is complete, the next step is to extract the archive:

$ tar xvf prometheus-2.30.3.linux-amd64.tar.gz

For convenience, we can change the directory for the extracted archive

$ cd prometheus-2.30.3.linux-amd64

From there we can create a configuration file directory

$ sudo mkdir -p /etc/prometheus

Then we can create the data directory

$sudo mkdir -p /var/lib/prometheus

Let’s now move the binary files Prometheus and promtool to /usr/local/bin/

Use the following code snippet

$ sudo mv prometheus promtool /usr/local/bin/

Move the template configuration file prometheus.yml to /etc/prometheus/ directory

$ sudo mv prometheus.yml /etc/prometheus/prometheus.yml

We have installed Prometheus. Lets verify the version

$ prometheus --version

Create Prometheus System group

The following code can help create the Prometheus system group.

$ sudo groupadd --system prometheus

We can then create Prometheus system user and assign the primary group created

$ sudo useradd -s /sbin/nologin --system -g prometheus prometheus

Set the ownership of Prometheus files and data directories to the Prometheus group and user.

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

$ sudo chmod -R 775 /etc/prometheus/ /var/lib/prometheus/

Lastly, we can create a systemd service to run at boot time

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

Add the following content to prometheus.service


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 \


Start the Prometheus service

$ sudo systemctl start prometheus

Now we can check if our Prometheus is up and running

$ sudo systemctl status prometheus

Add firewall rules to allow Prometheus to run on TCP port 9090

$ ufw allow 9090/tcp

Access your server from the browser.

http://<ip address>or<hostname>:9090

for example


Congratulations! you have successfully installed Prometheus on Ubuntu 20.04. To read more consult Prometheus documentation.

About Kipkoech Sang

I am a technology enthusiast who loves to share gained knowledge through offering daily tips as a way of empowering others. I am fan of Linux and all other things open source.
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