Prometheus + Grafana

The metric provider here is simple use of netcat in server mode.
Prometheus is run with prometheus-config.yaml
Grafana is run with grafana-datasources.yaml mounted under /etc/grafana/provisioning/datasources
Grafana default user/pass: admin/admin

Metrics source for Prometheus

Prometheus pulls metrics from targets defined in scrape_configs in prometheus-config.yml:

scrape_configs:
- job_name: test_target
  honor_timestamps: true
  scrape_interval: 1000ms
  scrape_timeout: 500ms
  metrics_path: /metrics
  scheme: http
  static_configs:
  - targets:
    - localhost:8080

Metrics format

The metrics are in key-value format:

wave 0.5

Metrics source for Grafana

Grafana pull metrics from Prometheus server defined as datasource in grafana-datasources.yaml:

apiVersion: 1

datasources:
  - name: Prometheus
    type: prometheus
    access: proxy
    url: http://localhost:9090
    editable: true # configuration of this datasource can be edited in dashboard