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What's the deal with Docker? (lemmy.zip)

submitted 8 months ago by AlexPewMaster@lemmy.zip to c/selfhosted@lemmy.world

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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!

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[–] MangoPenguin@lemmy.blahaj.zone 1 points 8 months ago* (last edited 8 months ago)

If you're OK with a little more power usage (like 10W instead of 3-5W), you can buy a mini PC from Dell/Lenovo/HP with a 7th gen Intel CPU for about $50-70 on ebay, with storage and RAM included. As a bonus you also get a case, power supply, cooling, etc.. which you have to buy extra for the Pi.

It'll be significantly faster in every way, with a lot more options for expansion if needed. The Pi 3 is very slow for even the most basic tasks, even just running apt upgrade can take several minutes or more for a few package updates.