loki发送端promtail的 docker-compose

version: "3"

networks:
  loki:

services:
  promtail:
    image: grafana/promtail:2.7.0
    restart: always
    volumes:
      - /var/log:/var/log
      - ./config/promtail-config.yml:/etc/promtail/config.yml
    command: -config.file=/etc/promtail/config.yml
    networks:
      - loki

config/promtail-config.yml

server:
  http_listen_port: 9080
  grpc_listen_port: 0

positions:
  filename: /tmp/positions.yaml

clients:
  - url: http://127.0.0.1:3100/loki/api/v1/push

scrape_configs:
- job_name: app
  static_configs:
  - targets:
      - localhost
    labels:
      job: app
      __path__: /var/log/app/**/*.log

ps：可以把127.0.0.1 换成接收端的内网ip