From: | Roffild <roffild(at)hotmail(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: postgres and initdb not working inside docker |
Date: | 2022-05-27 08:50:04 |
Message-ID: | DB9P193MB11772BDB553C9BB049055800B3D89@DB9P193MB1177.EURP193.PROD.OUTLOOK.COM |
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Lists: | pgsql-hackers |
Only in an ideal world are all standards observed...
Docker has different standards inside.
$ ls -l /home/neo/
drwxr-xr-x 2 pgsql pgsql 8192 May 27 10:37 data
drwxr-sr-x 2 pgsql pgsql 4096 May 24 09:35 data2
/home/pgsql/data - mounted volume.
Therefore, the permissions have changed to drwxr-xr-x
$ mkdir /home/pgsql/data/pgtest
$ ls -l /home/pgsql/data
drwxr-xr-x 2 pgsql pgsql 0 May 27 11:08 pgtest
$ chmod 700 /home/pgsql/data/pgtest
$ ls -l /home/pgsql/data
drwxr-xr-x 2 pgsql pgsql 0 May 27 11:08 pgtest
Oops...
If it's a regular "data2" folder and there is no "read_only: true" flag
for the container:
$ mkdir /home/pgsql/data2/pgtest
$ chmod 700 /home/pgsql/data2/pgtest
$ ls -l /home/pgsql/data2
drwx------ 2 pgsql pgsql 4096 May 27 11:19 pgtest
> Roffild writes:
>> postgres and initdb not working inside docker.
>> chmod 755 always for a mounted volume inside docker.
>
> This patch will never be accepted. You don't need it if you take the
> standard advice[1] that the Postgres data directory should not itself
> be a mount point. Instead, make a subdirectory in the mounted volume,
> and that can have the ownership and permissions that the server expects.
>
> regards, tom lane
>
> [1] https://www.postgresql.org/message-id/12168.1312921709%40sss.pgh.pa.us
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