Grafana Loki 日志收集与 Promtail 配置实战

---

title: Grafana Loki 日志收集与 Promtail 配置实战

keywords: Loki, Promtail, scrape_configs, labels, positions, push

description: 配置 Promtail 将系统日志推送到 Loki，定义采集源与标签，验证推送与查询结果。

categories:

• 文章资讯
• 软件教程

---

promtail-config.yaml：

server:
  http_listen_port: 9080
  grpc_listen_port: 0

positions:
  filename: /var/log/positions.yaml

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

scrape_configs:
  - job_name: varlogs
    static_configs:
      - targets: [localhost]
        labels:
          job: varlogs
          host: node-1
          __path__: /var/log/*.log

示例查询（LogQL）：

{job="varlogs",host="node-1"} |= "ERROR"