problem with read-only user

ROS Didier <didier.ros@edf.fr> writes:

I created a read-only role as follows:
psql -p 5434 kidsdpn03
CREATE ROLE kidsdpn03_ro PASSWORD 'xxx';
ALTER ROLE kidsdpn03_ro WITH LOGIN;
GRANT CONNECT ON DATABASE kidsdpn03 TO kidsdpn03_ro;
GRANT USAGE ON SCHEMA kidsdpn03 TO kidsdpn03_ro;
GRANT SELECT ON ALL TABLES IN SCHEMA kidsdpn03 TO kidsdpn03_ro;
GRANT SELECT ON ALL SEQUENCES IN SCHEMA kidsdpn03 TO kidsdpn03_ro;
ALTER DEFAULT PRIVILEGES IN SCHEMA kidsdpn03 GRANT SELECT ON TABLES TO kidsdpn03_ro;
ALTER ROLE kidsdpn03_ro SET search_path TO kidsdpn03;

but when i create new tables, i don't have read access to those new tables.

You only showed us part of what you did ... but IIRC,
ALTER DEFAULT PRIVILEGES only affects privileges for objects
subsequently made by the same user that issued the command.
(Otherwise it'd be a security issue.) So maybe you didn't
make the tables as the same user?

regards, tom lane

Hi Tom
Thanks for your answer.
Actually, you're right, the tables, the sequences are created by the user kidsdpn03 and another read-only role (kidsdpn03_ro) must interrogate these objects.
So every time the kidsdpn03 role creates a new table, the kidsdpn03_ro role will not have the rights to read them. Kidsdpn03_ro must be explicitly granted read rights on this objects.
Can you confirm that if it was the kidsdpn03_ro role that created the tables, there would be no problem when accessing new tables?
Thanks in advance.

Didier ROS
didier.ros@edf.fr
Tél. : +33 6 49 51 11 88

-----Message d'origine-----
De : tgl@sss.pgh.pa.us [mailto:tgl@sss.pgh.pa.us]
Envoyé : vendredi 20 décembre 2019 15:05
À : ROS Didier <didier.ros@edf.fr>
Cc : pgsql-hackers@postgresql.org; pgsql-sql@postgresql.org
Objet : Re: problem with read-only user

ROS Didier <didier.ros@edf.fr> writes:

I created a read-only role as follows:
psql -p 5434 kidsdpn03
CREATE ROLE kidsdpn03_ro PASSWORD 'xxx'; ALTER ROLE kidsdpn03_ro WITH
LOGIN; GRANT CONNECT ON DATABASE kidsdpn03 TO kidsdpn03_ro; GRANT
USAGE ON SCHEMA kidsdpn03 TO kidsdpn03_ro; GRANT SELECT ON ALL TABLES
IN SCHEMA kidsdpn03 TO kidsdpn03_ro; GRANT SELECT ON ALL SEQUENCES IN
SCHEMA kidsdpn03 TO kidsdpn03_ro; ALTER DEFAULT PRIVILEGES IN SCHEMA
kidsdpn03 GRANT SELECT ON TABLES TO kidsdpn03_ro; ALTER ROLE
kidsdpn03_ro SET search_path TO kidsdpn03;

but when i create new tables, i don't have read access to those new tables.

You only showed us part of what you did ... but IIRC, ALTER DEFAULT PRIVILEGES only affects privileges for objects subsequently made by the same user that issued the command.
(Otherwise it'd be a security issue.) So maybe you didn't make the tables as the same user?

regards, tom lane

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