Custom app: docker volume mapping

[jbrichez]

Hi,
I'm trying to create a custom cloudron app for this app: jellyseerr.
I successfully created the CloudronManifest.json file

{
  "id": "jellyseerr.com",
  "title": "Jellyseerr",
  "author": "Girish Ramakrishnan <girish@cloudron.io>",
  "description": "Jellyseerr app",
  "tagline": "A great beginning",
  "version": "0.0.1",
  "healthCheckPath": "/",
  "httpPort": 5055,
  "addons": {
    "localstorage": {}
  },
  "manifestVersion": 2,
  "website": "https://www.example.com",
  "contactEmail": "support@clourdon.io",
  "icon": "file://icon.png",
  "tags": [ "test", "collaboration" ],
  "mediaLinks": [ "https://images.rapgenius.com/fd0175ef780e2feefb30055be9f2e022.520x343x1.jpg" ]
}

But I have some trouble: the app crashed:
.

It's seems to be because the docker image need to configure "/config" folder when running:

docker run --rm \
    --name jellyseerr \
    -p 5055:5055 \
    -e PUID=1000 \
    -e PGID=1000 \
    -e UMASK=002 \
    -e TZ="Etc/UTC" \
    -v /<host_folder_config>:/config \
    ghcr.io/hotio/jellyseerr

I checked some image from cloudron image hub but i still didn't understand where the mapping is done.
How do I manage to link the volume ?

Thank you.

[timconsidine]

If the config can change, it should be under /app/data

[timconsidine]

Are you running docker from the host ?
Normally you should build a Dockerfile

[jbrichez]

@timconsidine I have connected my cloudron cli to my cloudron instance and i'm running command from my computer:

cloudron install --image hotio/jellyseerr

No i don't think the config will change

[timconsidine]

Ok but is this image built for Cloudron ? Or you’re using a pre-built image ?

[jbrichez]

@timconsidine I'm using a pre-built image from docker hub

[timconsidine]

If the config is not ever going to change, it can be read-only and included in the app’s files under /app/code.

[jbrichez]

Ok i understant but where is made the mapping exactly ?

EDIT: after some research, yes the app need to store some files

[girish]

@jbrichez in the Dockerfile, you can just symlink /config (or whatever) to say /app/data/config . The mapping is created in the Dockerfile.

[jbrichez]

I successfully started the app then when i check the container's volume I can see that:

[{bind  /media/movies /media/movies   true rprivate} {bind  /home/yellowtent/appsdata/4a224e49-5a30-49ae-bb2b-2b22731ab6ed/data /app/data   true rprivate} {volume 585faa40fe07d43726062f11d0530fad796806b03a3c1c39daab3a9a86b14542 /var/lib/docker/volumes/585faa40fe07d43726062f11d0530fad796806b03a3c1c39daab3a9a86b14542/_data /tmp local  true } {volume 28fcf47257a3b52162a2998df0eff0b325570c0cef49478f37cff3ecea7d0fda /var/lib/docker/volumes/28fcf47257a3b52162a2998df0eff0b325570c0cef49478f37cff3ecea7d0fda/_data /run local  true }]

There is my question answer probably...
This is the mapping I was looking for

When we used the cloudron cli, behind you automatically create a volume and attached it my custom app...
I didn't see that in the doc. Is it written somewhere ?

[girish]

@jbrichez maybe you are asking for https://docs.cloudron.io/packaging/cheat-sheet/#filesystem ?

[jbrichez]

@girish I think it is. But this was not really clear when i read it the first time

[BrutalBirdie]

Still, a Cloudron App should not need a volume by default.