promtail 配置详解_loki+promtail入门级部署

环境：基于docker compose部署loki+promtail服务，用于采集日志信息。已有现成的grafana服务，故此处部署为囊括grafana

1.docker-compose.yml配置文件

version: '2'

services:

loki:

image: grafana/loki

container_name: loki

restart: always

ports:

- "3100:3100"

volumes:

- /home/dockerfile/loki/loki-local-config.yaml:/etc/loki/loki-local-config.yaml

command: -config.file=/etc/loki/loki-local-config.yaml

promtail:

image: grafana/promtail

container_name: promtail

restart: always

volumes:

- /home/dockerfile/loki/promtail-docker-config.yaml:/etc/promtail/promtail-docker-config.yaml

command:

-config.file=/etc/promtail/promtail-docker-config.yaml

2.loki-local-config.yaml配置文件(路径：/home/dockerfile/loki。根据实际情况存放即可)

auth_enabled: false

server:

http_listen_port: 3100

ingester:

lifecycler:

address: 127.0.0.1

ring:

kvstore:

store: inmemory

replication_factor: 1

final_sleep: 0s

chunk_idle_period: 5m

chunk_retain_period: 30s

schema_config:

configs:

- from: 2018-04-15

store: boltdb

object_store: filesystem

schema: v9

index:

prefix: index_

period: 168h

storage_config:

boltdb:

directory: /tmp/loki/index

filesystem:

directory: /tmp/loki/chunks

limits_config:

enforce_metric_name: false

reject_old_samples: true

reject_old_samples_max_age: 168h

chunk_store_config:

max_look_back_period: 0

table_manager:

chunk_tables_provisioning:

inactive_read_throughput: 0

inactive_write_throughput: 0

provisioned_read_throughput: 0

provisioned_write_throughput: 0

index_tables_provisioning:

inactive_read_throughput: 0

inactive_write_throughput: 0

provisioned_read_throughput: 0

provisioned_write_throughput: 0

retention_deletes_enabled: false

retention_period: 0

3.promtail-docker-config.yaml配置文件(路径：/home/dockerfile/loki。根据自身实际情况存放)

server:

http_listen_port: 0

grpc_listen_port: 0

positions:

filename: /etc/promtail/positions.yaml # 游标记录上一次同步位置

sync_period: 10s #10秒钟同步一次

clients:

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

scrape_configs:

- job_name: test-java-log

static_configs:

- targets:

- localhost

labels:

job: content-cloud-test

app: content-cloud-test

__path__: /opt/content-cloud/webapi/logs/*log # docker运行时已经把宿主机的目录 /opt/ 映射给了promtail 容器的 /opt/,所以这个地方可以直接访问log文件

4.在grafana中，添加datasource-->loki

5.通过grafana的explore即可查看loki日志。效果图