Ask any home lab enthusiast about the best way to self-host your favorite services, and you’ll hear the name Docker crop up now and again. While it’s undoubtedly the most popular containerization platform in the home server landscape, you’ve got several other options at your disposal.

Typically used by developers in production environments, Podman differs quite a lot from its rival – and can even outperform Docker in certain tasks. So, we’ve pitted the two platforms against each other to help you choose the right container runtime for your projects.

Architecture

One’s daemonless, the other needs a background daemon

Before we can discuss the pros/cons of Docker and Podman, it’s important to go over the way they work. In order for Docker to perform any operation, it has to rely on a special process called the Docker daemon (dockerd). As such, you’ll need dockerd to remain active for all your containerization workloads, whether it's creating volumes, assembling images from Dockerfile configs, or managing containers.

Meanwhile, Podman has a daemonless architecture. Rather than requiring a persistent daemon process, Podman leverages the systemd service built into Linux to deploy your favorite self-hosted services.

Access privileges and security

Winner: Podman, unless you enable rootless mode in Docker

If you’ve ever dipped your foot into the Linux rabbit hole, you may have heard about root access. For the uninitiated, it refers to superuser-level privileges that let you work with all directories, scripts, commands, and files on your Linux machine. As you may have guessed, running services as a root user can expose your entire system to security risks.

Although Docker includes a rootless mode, the default version of the containerization platform requires root privileges to deploy containers – increasing the attack surface of your self-hosting machine. Meanwhile, Podman can tackle your container-related tasks without root access. Combine that with the lack of an extra daemon running in the background, and it's clear why Podman is the more secure container runtime for your home lab.

Pod support

Winner: Podman (duh, it has the word pod in its name)

Besides helping you manage containers, Podman also includes another neat utility: pods. Designed for containers you’d want to pair together, pods let you share network, storage, and other resources. This makes pods handy for advanced projects, like a monitoring service that logs any issues in a database and sends alerts via another push notification container.

Unlike Podman, Docker doesn’t support pods, so you’ll have to go the old-fashioned way of managing containers individually. The only way you can use them in your Docker-only setup is by throwing Kubernetes into the mix. While we’re on the subject…

Convenience and additional utilities

Winner: Docker and all the first-party tools available for it

Considering that Docker is the most common utility for managing containers, it's no surprise that there's a ton of documentation guides centered around the platform. Plus, Docker also has certain tools designed to work with its ecosystem, including the ultra-useful Docker Compose and the beginner-friendly Docker Swarm. While it’s incompatible with Cockpit, you can technically pair them together using Xantios’ Docker-Cockpit package.

Sure, you can use Podman with Kubernetes, but the same holds true for Docker. As someone who adores Docker Compose, Podman Compose requires minor modifications to the YAML files typically available for its rival. While Quadlet and Podlet can simplify container deployment with Podman, it’s hard not to love the simplicity and convenience of Docker Compose.

Docker vs. Podman: What’s the verdict?

Docker for casual users, Podman for specialized workloads

Despite the better security offered by Podman, I must admit that Docker is the better option for home labbers and self-hosting enthusiasts. It’s backed by a massive community, includes several first-party tools, and is fairly easy to pick up even for beginners. Plus, a complete Docker Engine, Compose, and Swarm suite is more than enough for your average tinkering workstation.

That said, Podman offers some neat advantages over its rival. If you’re worried about the security of your container hosting environment, Podman’s rootless nature and daemonless architecture make it the better option – and that’s before you consider its support for pods.

But in case you’re having a hard time choosing between them, there’s no harm in setting up both Docker and Podman on a virtual machine or two.