Grafana没有看到loki (对接-组合设置)

Question

我正在尝试使用相同的坞组合将我的应用程序登录到grafana/ loki /promtail中，并且在连接到loki时会得到以下错误：

localhost:3100 -> 404页未找到

当我试图把它挂在地堑上时：

URL http://loki:3100 -> Loki:坏网关。502。坏网关

我已经看到，您必须将容器的名字放入grafana，以检测它，但我也得到了相同的错误。

promtail和loki容器在它们的日志中都没有显示错误。

version: "3.7"

services:   
my-service-to-log:
    image: example:latest
    ports:
      - "8080:8080"
      - "8443:8443"
 loki:
    image: grafana/loki:2.4.1
    ports:
      - "3100:3100"
    volumes:
      - "C:/path/loki-config.yaml:/etc/loki/local-config.yaml"
    command: -config.file=/etc/loki/local-config.yaml

   promtail:
    image: grafana/promtail:2.4.1
    volumes:
      - "C:/path/promtail-config.yaml:/etc/promtail/config.yml"
      - /var/log:/var/log
    command: -config.file=/etc/promtail/config.yml

   grafana:
    image: grafana/grafana:latest
    ports:
      - "3000:3000"

我的loki-config.yaml

auth_enabled: false

server:
  http_listen_port: 3100
  grpc_listen_port: 9096

common:
  path_prefix: /tmp/loki
  storage:
    filesystem:
      chunks_directory: /tmp/loki/chunks
      rules_directory: /tmp/loki/rules
  replication_factor: 1
  ring:
    instance_addr: 127.0.0.1
    kvstore:
      store: inmemory

schema_config:
  configs:
    - from: 2020-10-24
      store: boltdb-shipper
      object_store: filesystem
      schema: v11
      index:
        prefix: index_
        period: 24h

ruler:
  alertmanager_url: http://localhost:9093

还有我的长尾巴-config.yaml

server:
  http_listen_port: 9080
  grpc_listen_port: 0

positions:
  filename: /tmp/positions.yaml

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

scrape_configs:
- job_name: system
  static_configs:
  - targets:
      - localhost
    labels:
      job: varlogs
      __path__: /opt/app/logs/*.log

/ # nc -vz localhost 3100
localhost (127.0.0.1:3100) open

我试着从地堑容器到洛基容器进行数控，它似乎看到了.有什么想法吗？

Answer 1

当您想从另一个容器访问Loki时，它需要侦听所有接口，而不仅仅是localhost：

common:
  path_prefix: /tmp/loki
  storage:
    filesystem:
      chunks_directory: /tmp/loki/chunks
      rules_directory: /tmp/loki/rules
  replication_factor: 1
  ring:
    instance_addr: 0.0.0.0
    kvstore:
      store: inmemory

Answer 2

在Grafana中将Loki添加为数据源时，不要使用http://localhost:3100，而是使用计算机拥有的ip地址，而不是本地主机。示例地址:3100

Answer 3

必须将所有容器放置在同一个虚拟网络上。没有这个，他们就不能见面。

version: "3.7"

networks:
  loki:

services:   
  my-service-to-log:
    image: example:latest
    ports:
      - "8080:8080"
      - "8443:8443"
    networks:
      - loki

  loki:
    image: grafana/loki:2.4.1
    ports:
      - "3100:3100"
    volumes:
      - "C:/path/loki-config.yaml:/etc/loki/local-config.yaml"
    command: -config.file=/etc/loki/local-config.yaml
    networks:
      - loki

   promtail:
    image: grafana/promtail:2.4.1
    volumes:
      - "C:/path/promtail-config.yaml:/etc/promtail/config.yml"
      - /var/log:/var/log
    command: -config.file=/etc/promtail/config.yml
    networks:
      - loki

   grafana:
    image: grafana/grafana:latest
    ports:
      - "3000:3000"
    networks:
      - loki