smokeping style metrics in prometheus

prometheus.yml

global:
  evaluation_interval: 15s
rule_files:
  - smokeping.rules
scrape_configs:
  - job_name: 'blackbox_icmp'
    metrics_path: /probe
    params:
      module: [icmp]
    scrape_interval: 1s
    static_configs:
      - targets:
        - ...
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: 127.0.0.1:9115  # Blackbox exporter.

smokeping.rules

groups:
- name: smokeping.rules
  rules:
  - record: job:probe_loss:avg15s
    expr: 1 - avg_over_time(probe_success{job="blackbox_icmp"}[15s])
  - record: job:probe_durration_seconds:min15s
    expr: min_over_time(probe_duration_seconds{job="blackbox_icmp"}[15s])
  - record: job:probe_durration_seconds:q25_15s
    expr: quantile_over_time(0.25, probe_duration_seconds{job="blackbox_icmp"}[15s])
  - record: job:probe_durration_seconds:q50_15s
    expr: quantile_over_time(0.5, probe_duration_seconds{job="blackbox_icmp"}[15s])
  - record: job:probe_durration_seconds:q75_15s
    expr: quantile_over_time(0.75, probe_duration_seconds{job="blackbox_icmp"}[15s])
  - record: job:probe_durration_seconds:max15s
    expr: max_over_time(probe_duration_seconds{job="blackbox_icmp"}[15s])