Spend a few weeks, months, or even years building out your home lab, and there's invariably a moment when things start looking a bit too chaotic. What started off as a single Docker container has now spawned over a dozen or two services spread across ports you can no longer recall. Documentation is understood as a best practice, but not something you've religiously followed. The idea that you need to keep track of services, port numbers, volume paths, dependencies, and more is obvious. But of course, you haven't actually acted on it.

I came across this issue when I was trying to diagnose my Scanserver instance recently, and ended up spending much more time than I should have getting it back and running. That was the turning point for me, and I finally installed DokuWiki and forced myself to document everything as if I were building it for someone else. A spot where someone would have all the information needed to diagnose, maintain, and get my stack back up and running.

Look, I've used note apps for years. I love everything from Obsidian to Notion and a range of markdown editing apps. These apps are great for personal notes, but most of them fall short for system documentation. A home lab, on the other hand, is a living thing. The fact of the matter is that services break, you might swap out port numbers, or swap out containers. You need notes with some sort of structure, effectively a tool between a notepad and a personal wiki. DokuWiki is exactly that tool.

Bring order to the chaos of your home lab

Map your services and network details

DokuWiki takes a decidedly old-school approach in its look and feel. The app is simple, almost to a fault. There are no complex menus here and no databases to manage. The app is just text files inside folders, kind of like a markdown notes editor. You can edit pages from the browser or open the raw files in any text editor if you want. The wiki syntax is straightforward, and so is creating links. The app's simplicity makes organizing information fast, which is critical for turning documentation from a task into something you'll actually want to do.

To kick things off, I started documenting all the services running on my home lab. I created a top-level page called services added a page inside for each of the services I used. This was essential to start giving structure to my personal wiki. Of course, I also added descriptions for each of these. This is also where I started adding details like internal URLs, port numbers, Docker Compose snippets, and the volumes I used. Some tools were more complicated to install than I'd have realized. Those tools got additional notes on how I got them working. Stuff like troubleshooting steps. All of this sounds obvious, but when you're running things for years on end, you tend to forget what you actually did. Documenting these services helps you better understand your own setup. And when you understand your own setup better, you can write it down in a lucid way that makes it easier for anyone else to follow.

With my services listed out, the next big step was documenting my network. I started by creating a similar page for my network settings, including IP ranges, VLAN details, DNS settings, and more. I've started adding in a line on every change I've made right there and then as I make it. So, if I need to roll back a change or just need a running changelog, it's all right there.

Building a system that remembers when I forget

Turn your maintenance routines into a living log

The real change came when I started documenting maintenance routines. I started maintaining a list of when I had last pruned unused Docker containers, updated running containers, and tested backups. The fact of the matter is that before I did any of that, I would simply forget when I'd last done those. Now I have a running log of that data.

I've added a page for all my environment variables across containers and one for backup locations. The fact of the matter is that most home lab problems surface from forgetting why something was done a certain way. DokuWiki fixes that. And it does that with simple, plain text files that will always be readable instead of resorting to proprietary databases.

A simple wiki tool became the most important homelab upgrade for me

I never bothered with documentation because it was a chore. There's no changing that. But DokuWiki has made it much more straightforward. It's become the first part of every new project I start. Before deploying a new service, I open DokuWiki and create a page for it. I'll usually paste the compose file and jot down notes, all of which help me understand the service better. And when I'm revisiting it months later, all this institutional knowledge goes a long way towards helping me get up to speed quickly.

DokuWiki isn't the only game in town as far as documentation tools go. In fact, it's not even the most modern or polished one. But it is lightweight, reliable, and has just enough features. More importantly, it is fast and easy to get started with, which ensures that I actually use. That's the most important part. All of which make this an essential part of every self-hosted stack.