On 02/04/2016 11:42 AM, Alex Magnum wrote:
Hi,
I am having a few problems with access permissions.

When I create a new role with NOCREATEUSER and then create a database
for that role I can connect to the DB but when trying to create a db
object I will get the ERROR:  permission denied for schema public.

Strangely though, if the role is created with CREATEUSERS I don't have
any problems.

So what arguments do you give to createuser and what does it show when you add -e to the command?


Here is what I want to do:

 1. Create a DBO role e.g. dbo_xxx NOCREATEDB NOCREATEUSER
 2. Create a db   mydb WITH OWNER db_xxx
 3. REVOKE all connection rights from public
 4. GRANT only rights to dbo_xxx
 5. GRANT all create rights on mydb TO dbo_xxx ; allowing the user to
    load the db schema

This is what I tried

Who are doing the below as?

REVOKE ALL ON SCHEMA public FROM PUBLIC;
CREATE USER dbo_xxx WITH PASSWORD 'mypass' NOCREATEDB NOCREATEUSER;

CREATE DATABASE my_db WITH OWNER dbo_xxx ENCODING 'UTF8';
REVOKE CONNECT ON DATABASE my_db FROM PUBLIC;
GRANT CONNECT ON DATABASE my_db TO dbo_xxx;
GRANT ALL PRIVILEGES ON DATABASE my_db TO dbo_xxx;

Well the above only GRANTs on the database not objects within it. For more information see:

http://www.postgresql.org/docs/9.4/interactive/sql-grant.html

For databases that means CREATE and CONNECT

Since you already REVOKed ALL on schema public FROM PUBLIC and did not GRANT SCHEMA privileges to dbo_xxx on schema public, I am pretty sure that is where your problem is. To get a clearer idea of what is going on can you show:

\l my_db

and in my_db

\dn+ public


-- After schema is loaded
CREATE USER read_only WITH PASSWORD 'mypass' NOCREATEDB NOCREATEUSER;
REVOKE ALL ON ALL TABLES IN SCHEMA public FROM PUBLIC ;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO read_only ;

But i end up with permission denied errors.

Anyone having a suggestion how to get this to work? Did I mess up
permissions in public schema?

Any help and suggestion is greatly appreciated.

Alex




--
Adrian Klaver
adrian.kla...@aklaver.com


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