prometheus/documentation/examples/prometheus-digitalocean.yml

# A example scrape configuration for running Prometheus with
# DigitalOcean.

scrape_configs:
  # Make Prometheus scrape itself for metrics.
  - job_name: "prometheus"
    static_configs:
      - targets: ["localhost:9090"]

  # Discover Node Exporter instances to scrape.
  - job_name: "node"

    digitalocean_sd_configs:
      - authorization:
          credentials: "<replace with a Personal Access Token>"
    relabel_configs:
      # Only scrape targets that have a tag 'monitoring'.
      - source_labels: [__meta_digitalocean_tags]
        regex: ".*,monitoring,.*"
        action: keep

      # Use the public IPv6 address and port 9100 to scrape the target.
      - source_labels: [__meta_digitalocean_public_ipv6]
        target_label: __address__
        replacement: "[$1]:9100"