 开发的开源日志聚合系统，专为云原生环境设计。与传统的日志系统（如 

 更加轻量级，专注于高效的日志存储和查询。

 不索引日志内容，而是通过标签（

）来索引日志流，因此它在处理大规模日志数据时更加高效。

 进行日志的收集、存储和查询。

在开始之前，确保你已经安装了 

vim loki-config.yaml

# 填充一下内容
---
server:
  http_listen_address: 0.0.0.0
  http_listen_port: 3100

memberlist:
  join_members: ["read", "write", "backend"]
  dead_node_reclaim_time: 30s
  gossip_to_dead_nodes_time: 15s
  left_ingesters_timeout: 30s
  bind_addr: ['0.0.0.0']
  bind_port: 7946
  gossip_interval: 2s

schema_config:
  configs:
    - from: 2023-01-01
      store: tsdb
      object_store: s3
      schema: v13
      index:
        prefix: index_
        period: 24h
common:
  path_prefix: /loki
  replication_factor: 1
  compactor_address: http://backend:3100
  storage:
    s3:
      endpoint: minio:9000
      insecure: true
      bucketnames: loki-data
      access_key_id: loki
      secret_access_key: supersecret
      s3forcepathstyle: true
  ring:
    kvstore:
      store: memberlist
ruler:
  storage:
    s3:
      bucketnames: loki-ruler

compactor:
  working_directory: /tmp/compactor





vim alloy-local-config.yaml

# 填充一下内容
discovery.docker "flog_scrape" {
	host             = "unix:///var/run/docker.sock"
	refresh_interval = "5s"
}

discovery.relabel "flog_scrape" {
	targets = []

	rule {
		source_labels = ["__meta_docker_container_name"]
		regex         = "/(.*)"
		target_label  = "container"
	}
}

loki.source.docker "flog_scrape" {
	host             = "unix:///var/run/docker.sock"
	targets          = discovery.docker.flog_scrape.targets
	forward_to       = [loki.write.default.receiver]
	relabel_rules    = discovery.relabel.flog_scrape.rules
	refresh_interval = "5s"
}

loki.write "default" {
	endpoint {
		url       = "http://gateway:3100/loki/api/v1/push"
		tenant_id = "tenant1"
	}
	external_labels = {}
}

vim docker-compose.yaml

# 填充一下内容---
networks:
  loki:

services:
  read:
    image: grafana/loki:latest
    command: "-config.file=/etc/loki/config.yaml -target=read"
    ports:
      - 3101:3100
      - 7946
      - 9095
    volumes:
      - ./loki-config.yaml:/etc/loki/config.yaml
    depends_on:
      - minio
    healthcheck:
      test: [ "CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:3100/ready || exit 1" ]
      interval: 10s
      timeout: 5s
      retries: 5
    networks: &loki-dns
      loki:
        aliases:
          - loki

  write:
    image: grafana/loki:latest
    command: "-config.file=/etc/loki/config.yaml -target=write"
    ports:
      - 3102:3100
      - 7946
      - 9095
    volumes:
      - ./loki-config.yaml:/etc/loki/config.yaml
    healthcheck:
      test: [ "CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:3100/ready || exit 1" ]
      interval: 10s
      timeout: 5s
      retries: 5
    depends_on:
      - minio
    networks:
      <<: *loki-dns

  alloy:
    image: grafana/alloy:latest
    volumes:
      - ./alloy-local-config.yaml:/etc/alloy/config.alloy:ro
      - /var/run/docker.sock:/var/run/docker.sock
    command:  run --server.http.listen-addr=0.0.0.0:12345 --storage.path=/var/lib/alloy/data /etc/alloy/config.alloy
    ports:
      - 12345:12345
    depends_on:
      - gateway
    networks:
      - loki

  minio:
    image: minio/minio
    entrypoint:
      - sh
      - -euc
      - |
        mkdir -p /data/loki-data && \
        mkdir -p /data/loki-ruler && \
        minio server /data
    environment:
      - MINIO_ROOT_USER=loki
      - MINIO_ROOT_PASSWORD=supersecret
      - MINIO_PROMETHEUS_AUTH_TYPE=public
      - MINIO_UPDATE=off
    ports:
      - 9000
    volumes:
      - ./.data/minio:/data
    healthcheck:
      test: [ "CMD", "curl", "-f", "http://localhost:9000/minio/health/live" ]
      interval: 15s
      timeout: 20s
      retries: 5
    networks:
      - loki

  grafana:
    image: grafana/grafana:latest
    environment:
      - GF_PATHS_PROVISIONING=/etc/grafana/provisioning
      - GF_AUTH_ANONYMOUS_ENABLED=true
      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
    depends_on:
      - gateway
    entrypoint:
      - sh
      - -euc
      - |
        mkdir -p /etc/grafana/provisioning/datasources
        cat <<EOF > /etc/grafana/provisioning/datasources/ds.yaml
        apiVersion: 1
        datasources:
          - name: Loki
            type: loki
            access: proxy
            url: http://gateway:3100
            jsonData:
              httpHeaderName1: "X-Scope-OrgID"
            secureJsonData:
              httpHeaderValue1: "tenant1"
        EOF
        /run.sh
    ports:
      - "3000:3000"
    healthcheck:
      test: [ "CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:3000/api/health || exit 1" ]
      interval: 10s
      timeout: 5s
      retries: 5
    networks:
      - loki

  backend:
    image: grafana/loki:latest
    volumes:
      - ./loki-config.yaml:/etc/loki/config.yaml
    ports:
      - "3100"
      - "7946"
    command: "-config.file=/etc/loki/config.yaml -target=backend -legacy-read-mode=false"
    depends_on:
      - gateway
    networks:
      - loki
    

  gateway:
    image: nginx:latest
    depends_on:
      - read
      - write
    entrypoint:
      - sh
      - -euc
      - |
        cat <<EOF > /etc/nginx/nginx.conf
        user  nginx;
        worker_processes  5;  ## Default: 1

        events {
          worker_connections   1000;
        }

        http {
          resolver 127.0.0.11;

          server {
            listen             3100;

            location = / {
              return 200 'OK';
              auth_basic off;
            }

            location = /api/prom/push {
              proxy_pass       http://write:3100\$$request_uri;
            }

            location = /api/prom/tail {
              proxy_pass       http://read:3100\$$request_uri;
              proxy_set_header Upgrade \$$http_upgrade;
              proxy_set_header Connection "upgrade";
            }

            location ~ /api/prom/.* {
              proxy_pass       http://read:3100\$$request_uri;
            }

            location = /loki/api/v1/push {
              proxy_pass       http://write:3100\$$request_uri;
            }

            location = /loki/api/v1/tail {
              proxy_pass       http://read:3100\$$request_uri;
              proxy_set_header Upgrade \$$http_upgrade;
              proxy_set_header Connection "upgrade";
            }

            location ~ /loki/api/.* {
              proxy_pass       http://read:3100\$$request_uri;
            }
          }
        }
        EOF
        /docker-entrypoint.sh nginx -g "daemon off;"
    ports:
      - "3100:3100"
    healthcheck:
      test: ["CMD", "service", "nginx", "status"]
      interval: 10s
      timeout: 5s
      retries: 5
    networks:
      - loki
  

  flog:
    image: mingrammer/flog
    command: -f json -d 200ms -l
    networks:
      - loki


轻量级日志系统 loki 的搭建与使用

本文将介绍如何搭建 Loki 监控系统，并展示如何使用 Loki 进行日志的收集、存储和查询。

会员

运维

云原生

Docker

2025春季采购节

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轻量级日志系统 loki 的搭建与使用

轻量级日志系统 loki 的搭建与使用

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