Context

I try to use docker mail server with my /var/mail volume on a nfs share but when container start
he can't take ownership on folder because user 5000 not exist on my NAS

chown: changing ownership of '/var/mail': Invalid argument
[  ERROR  ]  Failed to fix /var/mail permissions
[  ERROR  ]  Shutting down

Description

I have an LDAP service on my synology but UID are always greaterr thant 10000
so I need to create several local user on my synology and all my nomad cluster to get uid 5000 on everyone

we could put container docker user UID 5000 in a variable to custom this one if needed

Alternatives

store mail on filesytem without nas

Applicable Users

people using NFS

Are you going to implement it?

Yes, because I know the probability of someone else doing it is low and I can learn from it.

What are you going to contribute?

I could try to perform modification or test