30
Where to Mount NFS Shares and Where to Keep Docker-Compose (lemmy.world)
submitted 1 week ago by njordomir@lemmy.world to c/selfhosted@lemmy.world
15 comments fedilink hide all child comments

Hi folks,

You all have been instrumental to my self-hosting journey, both as inspiration and as a knowledge base when I'm stumped despite my research.

I am finding various different opinions on this and I'm curious what folks here have to say.

I'm running a Debian server accessible only within the home with a number of docker images like paperless-ngx, jellyfin, focalboard, etc. Most of the data actually resides on my NAS via NFS.

  1. Is /mnt or /media the correct place to mount the directories. Is mounting it on the host and mapping the mount point to docker with a bind the best path here?

  2. Additionally, where is the best place to keep my docker-compose? I understand that things will work even if I pick weird locations, but I also believe in the importance of convention. Should this be in the home directory of the server user? I've seen a number of locations mentioned in search results.

  3. Do I have to change the file perms in the locations where I store the docker compose or any config files that don't sit on the other end of NFS?

Any other resources you wish to share are appreciated. I appreciate the helpfulness of this community.

you are viewing a single comment's thread
view the rest of the comments
[-] scrubbles@poptalk.scrubbles.tech 18 points 1 week ago

I wouldn't worry about mounting your nfs shares directly to those host unless you need to. Compose has an operator similar to k8s that lets docker itself manage the shares, which is insanely useful if you lose your host. Then you don't have to have piles of scripts to mount them.

https://stackoverflow.com/questions/45282608/how-to-directly-mount-nfs-share-volume-in-container-using-docker-compose-v3

version: "3.2"

services:
  rsyslog:
    image: jumanjiman/rsyslog
    ports:
      - "514:514"
      - "514:514/udp"
    volumes:
      - type: volume
        source: example
        target: /nfs
        volume:
          nocopy: true
volumes:
  example:
    driver_opts:
      type: "nfs"
      o: "addr=10.40.0.199,nolock,soft,rw"
      device: ":/docker/example"
[-] Lem453@lemmy.ca 7 points 6 days ago

This is better as well because it prevents the docker from starting if the mount doesn't work. Some apps will freak out if they loose their data and apps if they index files like jellyfin might start deleting the files from the index as the library is now empty.

NFS mount via docker compose is the best way to go

[-] Bakkoda@sh.itjust.works 4 points 6 days ago

And some start fine, find /mnt/thefolder unmounted and fill it up with shit. Don't ask me how i know.

[-] bezoar@lemmy.world 3 points 6 days ago* (last edited 6 days ago)

Keep in mind that if you change your nfs server IP in the compose file, you will also need to delete the associated docker volume with "docker volume rm" before restarting. This is a potential issue if your old nfs server is still active, you'll still be accessing the old one. If you have a lot of services and occasionally switch nfs servers (I do this for redundancy, they are synced) it might be easier just to mount nfs in the host and do path:path bind mounts.

[-] scrubbles@poptalk.scrubbles.tech 3 points 6 days ago

DNS is of course the preferred approach

[-] KyuubiNoKitsune@lemmy.blahaj.zone 1 points 6 days ago* (last edited 6 days ago)

I found this to be extremely underperforming. If you plan on doing anything that requires high throughput, don't use the docker NFS operator.

[-] mbirth@lemmy.ml 2 points 6 days ago

There’s no difference between using a volume in Compose to mount a share or your server’s fstab file. Both do the same kind of mount.

[-] KyuubiNoKitsune@lemmy.blahaj.zone 1 points 6 days ago

It's doing something different, I was using to mount an AWS FSx for ZFS share on a beefy machine (1.2GB/s network throughput) and was getting less than 50MB/s throughput using docker to mount it, but getting the full 1.2GB/s when mounted outside and mapped to a volume in the container.

[-] mbirth@lemmy.ml 1 points 5 days ago

How did you mount it outside the cluster? Did you have a look at the mtab and used the exact same options in the compose file?

[-] KyuubiNoKitsune@lemmy.blahaj.zone 1 points 5 days ago

It's been a few months but I as far as I remember used all the same mounting options

this post was submitted on 07 Nov 2024
30 points (89.5% liked)

Selfhosted

40134 readers
288 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
devve@lemmy.world
HybridSarcasm@lemmy.world
HybridSarcasm@lemmy.hybridsarcasm.xyz