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Maximum number of docker networks (lemm.ee)

submitted 7 months ago by [email protected] to c/[email protected]

14 comments fedilink hide all child comments

Hey guys, I was happily running 44 docker containers for a while on Debian host. Today I tried to add a new service (uptime-kuma) using portainer stacks, but I got this error:

Error response from daemon: could not find an available, non-overlapping IPv4 address pool among the defaults to assign to the network

Quick google led me to this link where I found possible problem with max number of docker networks. I did docker network prune, it removed 5 networks that were not in use and viola, uptime-kuma is working now!

Am I reaching the limit? What to do if I need 10 more services on the same host? I bet I saw some people in this community running many more services

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[–] [email protected] 1 points 7 months ago (1 children)

sounds like your issue isnt with the number of networks, but how youre addressing them. fix that.

if youve got a container that only needs a single or a few ip's then its defined network should reflect that.

[–] [email protected] 1 points 7 months ago

Thank you! This will be more clear after more research I hope. My understanding of docker networks is still meh...gonna change it now