Doc: improve recommended systemd unit file.
commit2d27e13b35e9a932006006eb084cf9a1d90a8cb8
authorTom Lane <tgl@sss.pgh.pa.us>
Wed, 12 Oct 2022 14:51:11 +0000 (12 10:51 -0400)
committerTom Lane <tgl@sss.pgh.pa.us>
Wed, 12 Oct 2022 14:51:11 +0000 (12 10:51 -0400)
treed93d4b3c0ce5a06b99faf5db0c4d734d11ffa3fd
parent8a927e3cfc8f42141072b0a677678d76cec8a1db
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
doc/src/sgml/runtime.sgml