configuration-snippet.nix

# .. snip ..
      # Lifted from https://grafana.com/docs/grafana-cloud/quickstart/docker-compose-linux/#step-1-create-the-compose-file on 2022-10-07
      grafana-node-exporter = {
        # https://github.com/prometheus/node_exporter/releases
        image = "prom/node-exporter:v1.7.0";
        autoStart = true;
        extraOptions = [
          "--cpus=1"
          "--memory=512m"
        ];
        cmd = [
          "--path.procfs=/host/proc"
          "--path.sysfs=/host/sys"
          "--path.rootfs=/rootfs"
          "--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)"
        ];
        ports = [
          "9100:9100"
        ];
        volumes = [
          "/proc:/host/proc:ro"
          "/sys:/host/sys:ro"
          "/:/rootfs:ro"
        ];
      };

      grafana-prometheus = {
        # https://github.com/prometheus/prometheus/releases
        image = "prom/prometheus:v2.48.1";
        autoStart = true;
        extraOptions = [
          "--cpus=1"
          "--memory=512m"
        ];
        cmd = [
          "--config.file=/etc/prometheus/prometheus.yml"
          "--storage.tsdb.path=/prometheus"
          "--web.console.libraries=/etc/prometheus/console_libraries"
          "--web.console.templates=/etc/prometheus/consoles"
          "--web.enable-lifecycle"
        ];
        ports = [
          "9090:9090"
        ];
        volumes = [
          "/data/prometheus:/prometheus"
          "${prometheusConfigFile}:/etc/prometheus/prometheus.yml"
        ];
        dependsOn = [ "grafana-node-exporter" ];
      };
# .. snip ..

prometheus.yml

global:
  scrape_interval: "1m"

scrape_configs:
  - job_name: "prometheus"
    scrape_interval: "1m"
    static_configs:
      - targets:
          - "localhost:9090"
        labels:
          instance: "wilde"

  - job_name: "node"
    static_configs:
      - targets:
          - "localhost:9100"
        labels:
          instance: "wilde"
      - targets:
          - "192.168.1.160:9100"
        labels:
          instance: "oscar"

remote_write:
  - url: "https://prometheus-1234-somewhere.grafana.net/api/prom/push"
    basic_auth:
      username: "1234"
      password: "eylemmein"