promtail.yml

server:
  http_listen_address: 0.0.0.0
  http_listen_port: 9080

positions:
  filename: /tmp/positions.yaml

clients:
  - url: url
  
scrape_configs:
  - job_name: system
    static_configs:
    - targets:
        - localhost
      labels:
        job: varlogs
        __path__: /var/log/*log

  - job_name: containers
    static_configs:
    - targets:
        - localhost
      labels:
        job: containerlogs
        __path__: /var/lib/docker/containers/*/*log

    docker_sd_configs:
      - host: unix:///var/run/docker.sock
        refresh_interval: 5s

    pipeline_stages:
    - json:
        expressions:
          output: log
          stream: stream
          attrs:
    - json:
        expressions:
          tag:
        source: attrs
    - timestamp:
        format: RFC3339Nano
        source: time
    - labels:
        tag:
        stream:
    - output:
        source: output

    relabel_configs:
      - source_labels:
        - __meta_docker_container_name
        regex: '/(.*)'
        target_label: 'container_name'