# Prometheus config used by examples/docker-compose.yml.
# Every path below is a CONTAINER path: the compose file bind mounts the host's
# ~/.pi/metrics/targets directory at /pi-targets. See prometheus-scrape.yml for
# the version you would use when running Prometheus directly on the host.
global:
  scrape_interval: 15s
  evaluation_interval: 15s

rule_files:
  - /etc/prometheus/alerts.yml

scrape_configs:
  - job_name: pi
    scrape_interval: 15s
    file_sd_configs:
      - files:
          - /pi-targets/*.json
        refresh_interval: 15s
    relabel_configs:
      # Pi binds /metrics on the host loopback, so each target file says
      # 127.0.0.1:<port>. Inside this container 127.0.0.1 is the container
      # itself, so rewrite the host part and leave the port alone.
      - source_labels: [__address__]
        regex: '127\.0\.0\.1:(\d+)'
        target_label: __address__
        replacement: 'host.docker.internal:$1'