this post was submitted on 08 Apr 2024
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Basic docker networking? (lemm.ee)
submitted 7 months ago by iturnedintoanewt@lemm.ee to c/selfhosted@lemmy.world
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Hi guys! I'm going at my first docker attempt...and I'm going in Proxmox. I created an LXC container, from which I installed docker, and portainer. Portainer seems happy to work, and shows its admin page on port 9443 correctly. I tried next running the image of immich, following the steps detailed in their own guide. This...doesn't seem to open the admin website on port 2283. But then again, it seems to run in its own docker internal network (172.16.0.x). How should I reach immich admin page from another computer in the same network? I'm new to Docker, so I'm not sure how are images supposed to communicate within the normal computer network...Thanks!

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[–] N0x0n@lemmy.ml 1 points 7 months ago* (last edited 7 months ago) (1 children)

Docker networking is fun :) (IMO).

Without having a look at your container and how you configured it, if you have correctly mapped your ports and didn't change anything fancy and don't use a reverse proxy

Your container should be accessible on your host's IP mapped with you Immich docker port:

HostIP:2283

Edit: Also, don't run a docker container in... Another container (LXC).

Containerinception

[–] iturnedintoanewt@lemm.ee 1 points 7 months ago (1 children)

Thanks! When I type my LXC's IP:2283, I get unable to connect. I checked the docker-compose.yml and the port seems to be 2283:3001, but no luck at either. Is there anything that needs to be done on docker's network in order to..."publish" a container to the local network so it can be seen? Or any docker running with a port can be reached via the host's IP with no further config? Checking the portainer's networks section, I can see an 'immich-default' network using bridge on 172.18.0.0/16, while the system's bridge seems to be running at 172.17.0.0/16. Is this the correct defaults? Should I change anything?

Thanks!

[–] WhyAUsername_1@lemmy.world 1 points 7 months ago

Can you reach other services on that vm? If you don't know that then test this first. ( May be run a python http service to test this?)