grafana loki 2.4 版本简化了集群部署的使用，实际上部署起来很简单了，而且系统扩容更方便了
环境准备
- docker-compose 文件
---
version: "3"
networks:
loki:
services:
read:
image: grafana/loki:2.4.2
command: "-config.file=/etc/loki/config.yaml -target=read"
ports:
- 3100
- 7946
- 9095
volumes:
- ./loki-config.yaml:/etc/loki/config.yaml
depends_on:
- minio
networks: &loki-dns
loki:
aliases:
- loki
write:
image: grafana/loki:2.4.2
command: "-config.file=/etc/loki/config.yaml -target=write"
ports:
- 3100
- 7946
- 9095
volumes:
- ./loki-config.yaml:/etc/loki/config.yaml
depends_on:
- minio
networks:
<<: *loki-dns
promtail:
image: grafana/promtail:2.4.2
logging: &logging
driver: grafana/loki-docker-driver:main
options:
loki-url: "http://localhost:3100/loki/api/v1/push"
loki-retries: "1"
loki-tenant-id: "tenant1"
volumes:
- /var/log:/var/log
- ./promtail-config.yaml:/etc/promtail/config.yaml:ro
command: -config.file=/etc/promtail/config.yaml
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_ACCESS_KEY=loki
- MINIO_SECRET_KEY=supersecret
- MINIO_PROMETHEUS_AUTH_TYPE=public
- MINIO_UPDATE=off
logging:
<<: *logging
ports:
- 9000
volumes:
- ./.data/minio:/data
networks:
- loki
grafana:
image: grafana/grafana:latest
logging:
<<: *logging
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"
networks:
- loki
gateway:
logging:
<<: *logging
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"
networks:
- loki
- 安装loki docker log driver
注意使用新版本的docker desktop 可能会有问题，解决方法是自己购进啊一个
docker plugin install grafana/loki-docker-driver:main --alias loki-compose --grant-all-permissions
使用
- 启动服务
docker-compose up- d
- 日志收集
访问 http://localhost:3100/ - 日志查看
访问http://localhost:3000
说明
新版本loki 的模式是越来越简单了，我们只需要一个minio （s3） 就可以方便的部署了，
参考资料
https://grafana.com/docs/loki/latest/fundamentals/architecture/#modes-of-operation
https://grafana.com/docs/loki/latest/release-notes/v2-4/
https://github.com/rongfengliang/grafana-loki-learning