pgsql: Doc: improve recommended systemd unit file.

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Doc: improve recommended systemd unit file.
Date: 2022-10-12 14:52:45
Message-ID: E1oid6D-0023rw-98@gemulon.postgresql.org
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Doc: improve recommended systemd unit file.

Add
After=network-online.target
Wants=network-online.target
to the suggested unit file for starting a Postgres server.
This delays startup until the network interfaces have been
configured; without that, any attempt to bind to a specific
IP address will fail.

If listen_addresses is set to "localhost" or "*", it might be
possible to get away with the less restrictive "network.target",
but I don't think we need to get into such detail here.

Per suggestion from Pablo Federico.

Discussion: https://postgr.es/m/166552157407.591805.10036014441784710940@wrigleys.postgresql.org

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/2d27e13b35e9a932006006eb084cf9a1d90a8cb8

Modified Files
--------------
doc/src/sgml/runtime.sgml | 2 ++
1 file changed, 2 insertions(+)

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