---
# roles/monitoring_stack/templates/promtail-config.yml.j2
# Promtail: Log shipper that sends logs to Loki

server:
  http_listen_port: 9080
  grpc_listen_port: 0

# === WHERE TO SEND LOGS ===
clients:
  - url: http://{{ watchtower_ip }}:{{ loki_port }}/loki/api/v1/push

# === WHAT LOGS TO COLLECT ===
scrape_configs:
  # Collect logs from all Docker containers
  - job_name: docker
    docker_sd_configs:
      - host: unix:///var/run/docker.sock
        refresh_interval: 5s
    relabel_configs:
      # === LABEL: Extract container name ===
      - source_labels: ['__meta_docker_container_name']
        target_label: 'container'
      # === LABEL: Extract compose project ===
      - source_labels: ['__meta_docker_container_label_com_docker_compose_project']
        target_label: 'project'
      # === LABEL: Extract service name ===
      - source_labels: ['__meta_docker_container_label_com_docker_compose_service']
        target_label: 'service'

  # === PRO-TIP: Add System Logs ===
  # Uncomment to collect syslog entries
  # - job_name: syslog
  #   static_configs:
  #     - targets:
  #         - localhost
  #       labels:
  #         job: varlogs
  #         __path__: /var/log/*log