I Anticipated Docker to Struggle on My Vintage Raspberry Pi, but Kiwix Surprised Me
Recently, I have developed a keen interest in Docker, using it extensively across various projects. Alongside this, I’ve revisited Raspberry Pi devices, particularly the Pi 4, as part of my home lab setup. During a discussion with a colleague about the possibilities with Raspberry Pi, we touched upon utilizing Docker containers. This piqued my curiosity about whether it would be feasible to run them on this older single-board computer (SBC). To my surprise, the project yielded positive results and opened up a realm of creative ideas.
Docker Functions Seamlessly on Raspberry Pi
Setting Up a Full Stack in Simple Steps
Initially, I was uncertain if Docker could be installed on my Raspberry Pi, especially since I had only upgraded it recently from Bookworm to Trixie. I transitioned this device from being solely a Retro Pi to a mini PC. Given my frequent usage of Docker, I was eager to see how the Pi handled it.
To my delight, the installation process for Docker and Docker Compose turned out to be straightforward.
To safeguard the microSD card with the Pi OS, I made it a point to store databases and logs on an external USB drive.
After downloading Docker and installing Docker Compose, I set up the necessary directories and compose files. I then proceeded to evaluate how well each application performed on the Pi.
While I encountered a number of successes, there were also challenges. For instance, I had difficulties with binding volumes to an external USB drive due to incorrect mapping. I quickly corrected the syntax, restarted the stack, and everything functioned as intended. Eventually, I was able to explore the applications running on the Pi.
Successful Installation of Various Test Applications
However, Certain Limitations Were Present
Running on a Raspberry Pi 4, I anticipated some sluggishness or operational hurdles while using Docker. In the past, I faced many installation issues, prompting me to completely reinstall the OS onto the Pi.
Once I undertook this step, the performance improved significantly, essentially giving me a fresh start for my home lab endeavors.
As I began crafting my Docker Compose files and configuring the setup, I successfully initiated several containers, including Caddy and Memos, right away.
Caddy caught my attention, and I am excited about its potential on the Raspberry Pi. I found the Memos application particularly efficient and light, making it preferable to the traditional notepad on the Pi.
A Standout Container on the Raspberry Pi
An Impressive Virtual Library Application
One of my favorite mobile applications, Kiwix, has a Docker version that I decided to try. I use Kiwix daily to access various libraries, which helps me continually learn. It’s a fantastic platform, and I was thrilled to see that it could run with Docker.
Kiwix is an open-source application that serves as a knowledge repository, allowing users to download and access books or resources offline—from Wikipedia to public domain content.
To utilize Kiwix within Docker, you need ZIM files stored in its directory, which are typically available in Kiwix’s library.
Keep in mind that Kiwix files can be sizeable, particularly for extensive sources like Wikipedia.
Using Kiwix on my Pi inspired a future project idea: creating a dedicated “library” device with a custom case and a 7-inch screen for offline use, which I hope to build eventually.
Docker Creates Opportunities for Exciting Future Projects
Plans for Upcoming Raspberry Pi Projects
This undertaking with Docker on the Raspberry Pi was primarily to see if it was possible to run containers on the device. The endeavor was successful, and I am considering incorporating this setup into my home lab projects regularly.
Looking ahead, there are several containers I am eager to explore further. I am leaning towards using Dockhand for stack management instead of Portainer.
Other intriguing options include Sablier, ttyd, wg-easy, and Navidrome.
I have numerous ambitious projects lined up involving Raspberry Pi, and this is merely the first of many. Future plans include creating a Raspberry Pi-based NAS and a private cloud, making my familiarity with Docker on this platform quite beneficial.
A New Chapter in Home Lab Development
The Docker project on my Raspberry Pi has proven to be a complete success. Initially uncertain about its viability, I can now say that it worked excellently. I’ve established a fully-functional stack on this mini-PC, adaptable to my requirements. The Raspberry Pi continues to be a valuable asset in home lab setups, and I am pleased to have embarked on this journey.
