Hi Laurenz
Thanks for the reply,
If I am not mistaken, below is my understanding of your suggestion.
Suppose that My mount point on the NFS server is say /nfs-mount/postgres/
and you are suggesting to have a data directory as say /nfs-mount/postgres/db or something like that ?
and assign this value to the PGDATA ?
If that is the case, then when and who should be creating the directory DB ?
Please correct me if I am wrong about the understanding.
Thanks,
Amol
On Mon, 2025-07-14 at 11:19 +0530, Amol Inamdar wrote:
> I'm currently running PostgreSQL version 16.6 inside a Docker container
> (base image: UBI 9), using Docker Compose. The PostgreSQL data directory
> is mounted from an NFS volume hosted on a z/OS NFS server.
>
> The environment has a few constraints:
>
> - It’s a highly secure and access-controlled setup.
> - Due to platform restrictions on z/OS, the mounted NFS directory cannot
> be owned by the PostgreSQL user (e.g., `postgres`) inside the container.
> - As a result, PostgreSQL fails to start because of the directory
> ownership validation check.
It is not a good idea to have a mount point be the data directory.
The proper solution is to create the data directory inside the
mount point. That way, the permissions of the data directory don't
have to be the same as the permissions of the mount point.
Yours,
Laurenz Albe
-- -regards
Amol
