docker-compose.yml

  1. cat > docker-compose.yml << EOF
  2. version: "3.7"
  4. services:
  5.   promtail:
  6.     image: grafana/promtail
  7.     container_name: promtail
  8.     restart: always
  9.     volumes:
  10.       # 要收集三方日志，需要映射路径
  11.       # - ./config.yml:/etc/promtail/config.yml
  12.       # 日志路径
  13.       - /var/lib/docker/containers:/var/log
  14.     command: -config.file=/etc/promtail/config.yml # 默认配置
  15. networks:
  16.   default:
  17.     external:
  18.       name: jcbnet 
  19. EOF

配置

  1. docker-compose up -d
  2. docker cp promtail:/etc/promtail/config.yml ./
  3. sed -i "s/# -/-/g" docker-compose.yml
  4. docker-compose up -d

config.yaml

说明：

默认配置内容如下：

  1. server:
  2.   http_listen_port: 9080
  3.   grpc_listen_port: 0
  5. positions:
  6.   filename: /var/log/positions.yaml # This location needs to be writeable by Promtail.
  8. client:
  9.   url: http://ip_or_hostname_where_Loki_run:3100/loki/api/v1/push
  11. scrape_configs:
  12.  - job_name: system
  13.    pipeline_stages:
  14.    static_configs:
  15.    - labels:
  16.       job: varlogs  # A `job` label is fairly standard in prometheus and useful for linking metrics and logs.
  17.       host: ${yourhost} # A `host` label will help identify logs from this machine vs others
  18.       __path__: /var/log/**/*-json.log  # The path matching uses a third party library: https://github.com/bmatcuk/doublestar