[Unit]
Description=Runners to orchestrate a high-availability PostgreSQL
After=syslog.target network.target

[Service]
Type=notify

User=postgres
Group=postgres

# Read in configuration file if it exists, otherwise proceed
EnvironmentFile=-/etc/patroni/patroni_env.conf

# Limit glibc malloc arenas to reduce virtual memory.
# This is essential when running with vm.overcommit_memory=2.
Environment=MALLOC_ARENA_MAX=1
# Reset or set another MALLOC_ARENA_MAX value when starting up postmaster.
Environment=PG_MALLOC_ARENA_MAX=

# The default is the user's home directory, and if you want to change it, you must provide an absolute path.
# WorkingDirectory=/home/sameuser

# Where to send early-startup messages from the server
# This is normally controlled by the global default set by systemd
#StandardOutput=syslog

# Pre-commands to start watchdog device
# Uncomment if watchdog is part of your patroni setup
#ExecStartPre=-+/sbin/modprobe softdog
#ExecStartPre=-+/bin/chown postgres /dev/watchdog

# Start the patroni process
ExecStart=/bin/patroni /etc/patroni/patroni.yml

# Send HUP to reload from patroni.yml
ExecReload=/bin/kill -s HUP $MAINPID

# Only kill the patroni process, not it's children, so it will gracefully stop postgres
KillMode=process

# Give a reasonable amount of time for the server to start up/shut down
TimeoutSec=30

# Restart the service if it crashed
Restart=on-failure

[Install]
WantedBy=multi-user.target