this post was submitted on 19 Dec 2024
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37
How many docker containers are you running on your server? (slrpnk.net)
submitted 3 days ago* (last edited 2 days ago) by [email protected] to c/[email protected]
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Yo,

Wandering what the limit is when it comes to how many containers I can run. Currently I'm running around 15 containers. What happens if this is increased to say, 40? Also, can docker containers go "idle" when not being used - to save system resources?

I'm running a i7-6700k Intel cpu. Doesn't seem to be struggling at all with my current setup at least, maybe only when transcoding for Jellyfin.

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[–] [email protected] 3 points 1 day ago (1 children)

Looks like 9? Here's what I'm currently running:

  • actual budget
  • caddy (for TLS trunking)
  • nextcloud and collabora
  • vaultwarden (currently unused)
  • jellyfin
  • home assistant

The rest are databases and other auxiliary stuff. I'm probably going to work on it some this holiday break, because I'd like to eventually move to microOS, and I still have a few things running outside of containers that I need to clean up (e.g. Samba).

But yeah, like others said, it really doesn't matter. On Linux (assuming you're not using Docker Desktop), a container is just a process. On other systems (e.g. Windows, macOS, or Linux w/ Desktop), they run in a VM, which is a bit heavier and reserves more resources for itself. I could run 1000 containers and it really wouldn't matter, as long as they're pretty light.

[–] [email protected] 1 points 1 day ago (2 children)

Been curious about deploying HA with docker. As I understand the only limitation is you can’t use add-ons?

[–] [email protected] 1 points 1 day ago

You cannot install addons from the UI, but you can manually install them. Addons are just Docker containers that get configured automatically.

[–] [email protected] 1 points 1 day ago

Yeah, I think so. I'm not interested in addons anyway.