PostgreSQL 12 High Availability Cookbook - Third Edition

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We don't provide a standard Linux init script to control the etcd service because most Linux distributions have migrated to systemd as a service control mechanism. If we wanted to control etcd in this way, we would create a file named etcd.service in the /etc/systemd/system directory with the following content:

[Unit] 
Description=etcd key-value store 
Documentation=https://github.com/etcd-io/etcd 
After=network.target 
 
[Service] 
User=postgres 
Type=notify 
ExecStart=/usr/local/bin/etcd --config-file /etc/etcd.conf 
Restart=always 
RestartSec=10s 
LimitNOFILE=40000 
 
[Install] 
WantedBy=multi-user.target 

Then, we could enable, start, and stop etcd using the following systemctl commands:

sudo systemctl enable etcd
sudo systemctl start ...