Docker - Insufficient permissions

[schiz0phr3ne]

Hello,

I try to figure why I can't use Shaarli, because I have insufficient write permissions on folders who have them normally.

Docker command :
docker run -d -p 8000:80 -v /docker/shaarli/cache:/var/www/shaarli/cache -v /docker/shaarli/data:/var/www/shaarli/data shaarli/shaarli

Folder permissions :
drwxr-xr-x 4 docker users 4096 août 7 08:26 shaarli
Subfolders :
drwxr-xr-x 2 docker users 4096 août 7 08:26 cache
drwxr-xr-x 2 docker users 4096 août 7 08:26 data

docker folder is owned by root user, but I don't have issue with other containers subfolders (all owned by docker user)

I added ENV variables (from OpenMediaVault GUI) :
PUID=1001
PGID=100
(where id docker = uid=1001(docker) gid=100(users))

But I always have this error on Shaarli homepage :

Insufficient permissions:
    "cache" directory is not writable
    "data" directory is not writable

I saw that, inside container, cache and data folders are owned by root user, so I chown folders to host root user, without success.

Do I forget something ?

[ArthurHoaro]

From my understanding, the owner in the container and on the host have to be the same. Since the image nginx user is 100:101, that's also what I applied on the host. I'm not sure if it's the best approach though.

[schiz0phr3ne]

Ok so, I did a chown 100:101, even if user 100 belongs to group 102 : it works !

I reread the documention (across), and I didn't retrieve anything about nginx user (I maybe missed it). It may be necessary to add it.

[virtualtam]

Hi @schizophrene !

It is recommended to use dedicated volumes to store, persist and share data across containers, see https://docs.docker.com/storage/volumes/

This is a duplicate of #1031 and #1127 , see also my detailed answer there for a more in-depth explanation: #1031 (comment)