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Added check for pg_checkpoint role presence (#807)

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* Added check for pg_checkpoint role presence

This commit provides the needed infrastructure in `repmgr` so if the `repmgr` database
user is a member of the `pg_checkpoint` role, and inherits its privileges, there is no 
need for such a user to be a superuser.

Co-authored-by: Martín Marqués <martin.marques@enterprisedb.com>
This commit is contained in:
RealGreenDragon
2024-09-11 20:13:44 +02:00
committed by GitHub
parent b4a0938081
commit f69485c0ba
7 changed files with 82 additions and 9 deletions
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6
doc/configuration-permissions.xml
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@@ -79,6 +79,10 @@
Alternatively the meta-role <varname>pg_monitor</varname> can be granted, which includes membership
of the above predefined roles.
</para>
<para>
PostgreSQL 15 introduced the <varname>pg_checkpoint</varname> predefined role which allows a
non-superuser &repmgr; database user to perform a CHECKPOINT command.
</para>
<para>
Membership of these roles can be granted with e.g. <command>GRANT pg_read_all_stats TO repmgr</command>.
</para>
@@ -148,6 +152,8 @@
<link linkend="repmgr-standby-switchover">repmgr standby switchover</link>. This can only
be executed by a superuser; if the &repmgr; user is not a superuser,
the <option>-S</option>/<option>--superuser</option> should be used.
From PostgreSQL 15 the <varname>pg_checkpoint</varname> predefined role removes the need of
superuser permissions to perform <command>CHECKPOINT</command> command.
</simpara>
<simpara>
If &repmgr; is not able to execute <command>CHECKPOINT</command>,