How to Install Sensu Monitoring Solution on Ubuntu 22.04

How to Install Sensu Monitoring Solution on Ubuntu 22.04

Author: Łukasz Bodziony

Email: lukasz@bodziony.net.pl

DevOps Services: bodziony.net.pl

Published: June 2025

Introduction

Sensu Go is a scalable, flexible monitoring solution for infrastructure and applications. In this tutorial, Łukasz Bodziony will guide you through installing and configuring Sensu on an Ubuntu 22.04 server, so you can start collecting metrics, events, and alerts with ease.

Prerequisites

  • Ubuntu 22.04 LTS server with sudo/root access
  • Minimum 2 GB RAM (4 GB+ recommended)
  • Static IP or DNS pointing to the server
  • Firewall allowing required ports (e.g. TCP 8080 for the dashboard)

Step 1: Update System Packages

sudo apt update && sudo apt upgrade -y

Step 2: Install Dependencies

sudo apt install -y curl wget apt-transport-https gnupg

Step 3: Add Sensu Repository


# Import the Sensu GPG key
curl -fsSL https://packagecloud.io/sensu/stable/gpgkey | sudo gpg --dearmor -o /usr/share/keyrings/sensu-stable-archive-keyring.gpg

# Add the repository
echo "deb [signed-by=/usr/share/keyrings/sensu-stable-archive-keyring.gpg] https://packagecloud.io/sensu/stable/ubuntu/ jammy main" | sudo tee /etc/apt/sources.list.d/sensu.list

sudo apt update

Step 4: Install Sensu Backend and CLI


sudo apt install -y sensu-go-backend sensu-go-cli

Step 5: Configure and Start the Sensu Backend

Edit the backend configuration file /etc/sensu/backend.yml and set your namespace, storage, and API settings as needed. For a simple setup, you can use the defaults.


sudo systemctl enable --now sensu-backend
sudo sensu-backend init --name sensu-backend.local

Step 6: Install Sensu Agent (on Same or Additional Hosts)


sudo apt install -y sensu-go-agent
sudo tee /etc/sensu/agent.yml << 'EOF'
backend-url:
  - "ws://127.0.0.1:8081"
namespace: default
subscriptions:
  - "system"
EOF

sudo systemctl enable --now sensu-agent

Step 7: Access the Sensu Dashboard

The Sensu Web UI runs on port 8080 by default. Open your browser and navigate to:

http://Your-Server-IP:8080

Log in with the username and password you configured during sensu-backend init.

Conclusion

You now have a working Sensu Go monitoring stack on Ubuntu 22.04, complete with backend, agent, and dashboard. Begin defining checks, handlers, and filters to tailor your monitoring to your environment.

🚀 Host your Sensu monitoring on a reliable Linux VPS: netcloud24.com/servers/vps-linux/

© 2025 Written by Łukasz Bodziony – All rights reserved.

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