postgresql/postgresql.service

# It's not recommended to modify this file in-place, because it will be
# overwritten during package upgrades.  If you want to customize, the
# best way is to create a file "/etc/systemd/system/postgresql.service",
# containing
#	.include /lib/systemd/system/postgresql.service
#	...make your changes here...
# For more info about custom unit files, see
# http://fedoraproject.org/wiki/Systemd#How_do_I_customize_a_unit_file.2F_add_a_custom_unit_file.3F

# For example, if you want to change the server's port number to 5433,
# create a file named "/etc/systemd/system/postgresql.service" containing:
#	.include /lib/systemd/system/postgresql.service
#	[Service]
#	Environment=PGPORT=5433
# This will override the setting appearing below.

[Unit]
Description=PostgreSQL database server
After=syslog.target
After=network.target

[Service]
Type=forking

User=postgres
Group=postgres

# Note: avoid inserting whitespace in these Environment= lines, or you may
# break postgresql-setup.

# Port number for server to listen on
Environment=PGPORT=5432

# Location of database directory
Environment=PGDATA=/var/lib/pgsql/data

# Where to send early-startup messages from the server (before the logging
# options of postgresql.conf take effect)
StandardOutput=syslog

# Disable OOM kill on the postmaster
OOMScoreAdjust=-1000

ExecStartPre=/usr/bin/postgresql-check-db-dir ${PGDATA}
ExecStart=/usr/bin/pg_ctl start -D ${PGDATA} -s -o "-p ${PGPORT}" -w -t 300
ExecStop=/usr/bin/pg_ctl stop -D ${PGDATA} -s -m fast
ExecReload=/usr/bin/pg_ctl reload -D ${PGDATA} -s

# Give a reasonable amount of time for the server to start up/shut down
TimeoutSec=300

[Install]
WantedBy=multi-user.target