server:
  http_listen_port: 9080

positions:
  filename: /tmp/positions.yaml

clients:
  - url: http://monitoring_loki:3100/loki/api/v1/push

scrape_configs:
  - job_name: docker
    docker_sd_configs:
      - host: unix:///var/run/docker.sock
        refresh_interval: 5s
    relabel_configs:
      # Keep only running containers
      - source_labels: ['__meta_docker_container_id']
        target_label: container_id

      # Container name (strips leading slash)
      - source_labels: ['__meta_docker_container_name']
        regex: '/(.+)'
        target_label: container_name

      # Compose project name
      - source_labels: ['__meta_docker_container_label_com_docker_compose_project']
        target_label: compose_project

      # Compose service name
      - source_labels: ['__meta_docker_container_label_com_docker_compose_service']
        target_label: compose_service

      # Image name
      - source_labels: ['__meta_docker_container_image']
        target_label: image

      # Custom labels - grab any label starting with "logging."
      # e.g. logging.env=production becomes env=production
      - regex: '__meta_docker_container_label_logging_(.+)'
        action: labelmap
        replacement: '$1'

      # Drop containers with logging=disabled label
      - source_labels: ['__meta_docker_container_label_logging']
        regex: 'disabled'
        action: drop

    pipeline_stages:
      # Docker JSON log format parsing
      - json:
          expressions:
            output: log
            stream: stream
            timestamp: time

      # Use Docker's timestamp
      - timestamp:
          source: timestamp
          format: RFC3339Nano

      # Output just the log line
      - output:
          source: output