I never understood how to use Docker, what makes it so special? I would really like to use it on my Rapsberry Pi 3 Model B+ to ease the setup process of selfhosting different things.
I’m currently running these things without Docker:
Mumble server with a Discord bridge and a music bot
Maubot, a plugin-based Matrix bot
FTP server
Two Discord Music bots
All of these things are running as systemd services in the background. Should I change this? A lot of the things I’m hosting offer Docker images.
It would also be great if someone could give me a quick-start guide for Docker. Thanks in advance!
If you’re already using systemd, do not switch to Docker. Use Podman instead. Docker runs all your services under the Docker service. Podman can both run the same containers as systemctl services.
Quadlets with podman have completely replaced compose files for me. I use the kuberentes configs. Then I run a tailscale container in the pod and BAM, all of my computers can access that service without have to expose any ports.
Then I have an ansible playbook to log in to the host and start a detached tmux session so my user systemd services keep running. Its all rootless, and just so dang easy.
I used to run systemd units that just start docker-compose files, that’s also a thing, I suppose. Also generally it’s easy to manage the container directly (killing/restarting) without the needed lifecycle a systemd unit gives, I would say.
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If you’re already using systemd, do not switch to Docker. Use Podman instead. Docker runs all your services under the Docker service. Podman can both run the same containers as systemctl services.
Quadlets with podman have completely replaced compose files for me. I use the kuberentes configs. Then I run a tailscale container in the pod and BAM, all of my computers can access that service without have to expose any ports.
Then I have an ansible playbook to log in to the host and start a detached tmux session so my user systemd services keep running. Its all rootless, and just so dang easy.
I used to run systemd units that just start docker-compose files, that’s also a thing, I suppose. Also generally it’s easy to manage the container directly (killing/restarting) without the needed lifecycle a systemd unit gives, I would say.