[Unit]
Description=PostgreSQL database server
After=network.target
[Service]
Type=notify

User=postgres
Group=postgres
OOMScoreAdjust=-1000
Environment=PG_OOM_ADJUST_FILE=/proc/self/oom_score_adj
Environment=PG_OOM_ADJUST_VALUE=0
Environment=PGDATA=/var/lib/pgsql/data

ExecStartPre=/usr/libexec/postgresql-check-db-dir %N
ExecStart=/usr/bin/postmaster -D ${PGDATA}
ExecReload=/bin/kill -HUP $MAINPID
KillMode=mixed
KillSignal=SIGINT

TimeoutSec=0

[Install]
WantedBy=multi-user.target