kubespray/roles/etcd/templates/etcd-events-host.service.j2

[Unit]
Description=etcd
After=network.target

[Service]
Type=notify
User=root
EnvironmentFile=/etc/etcd-events.env
ExecStart={{ bin_dir }}/etcd
NotifyAccess=all
Restart=always
RestartSec=10s
LimitNOFILE=40000

[Install]
WantedBy=multi-user.target