[Unit]
Description=Prometheus Server
Documentation=https://prometheus.io/docs/introduction/overview/
After=network-online.target

[Service]
Type=simple
User=prometheus
Group=prometheus
Restart=on-failure
ExecStart=/opt/prometheus/prometheus/prometheus \
  --config.file=/opt/prometheus/prometheus/prometheus.yml \
  --storage.tsdb.path=/opt/prometheus/prometheus/data \
  --storage.tsdb.retention.time=60d \
  --web.enable-lifecycle

[Install]
WantedBy=multi-user.target