Building Single Sign-On for My Homelab with Authentik and Grafana

Introduction

Like many people running a homelab, I found myself with a growing collection of self-hosted services—Grafana for monitoring, Uptime Kuma for alerts, Portainer for container management, and more.

Each service worked well on its own, but there was one problem:
every service had its own login.

It wasn’t just inconvenient—it also didn’t scale. Managing users, credentials, and access across multiple applications quickly becomes messy.

Cisco ASA 5510

I need to brush up on my networking skills, so I thought that I would dig out the old hardware that I purchased back when I initially got my CCNA certification. I figured I’d first start with this ASA Firewall since many job listing I have been seeing for Network Engineer jobs have mentioned firewall configuration. I purchased this ASA in probably 2017 or 2018 and it was past end of life then (foreshadowing…..).