loki 是类似prometheus 的log 可视化展示、收集系统，已经集成在grafana 6.0 版本中了
说明： 测试环境使用了docker-compose 运行
环境准备
- docker-compose 文件
version: "3"
services:
nginx:
build: ./
ports:
- "8090:80"
volumes:
- $PWD:/etc/promtail
loki:
image: grafana/loki:master
ports:
- "3100:3100"
volumes:
- $PWD:/etc/loki
command: -config.file=/etc/loki/loki-local-config.yaml
promtail:
image: grafana/promtail:make-images-static-26a87c9
volumes:
- $PWD:/etc/promtail
- ./log:/var/log
command:
-config.file=/etc/promtail/promtail-docker-config.yaml
grafana:
image: grafana/grafana:master
ports:
- "3000:3000"
environment:
- "GF_EXPLORE_ENABLED=true"
- 配置说明
nginx loki 配置，主要是使用容器运行多个应用
dockerfile
FROM grafana/promtail:make-images-static-26a87c9 as builder
FROM openresty/openresty:alpine
ENV TINI_VERSION v0.18.0
RUN apk add --update \
&& apk add --no-cache tini
ADD entrypoint.sh /entrypoint.sh
ADD promtail.sh /promtail.sh
COPY nginx.conf usr/local/openresty/nginx/conf/
COPY --from=builder /usr/bin/promtail /usr/bin/
EXPOSE 80
ENTRYPOINT ["/sbin/tini","-s", "--", "/entrypoint.sh"]
entrypoint.sh:
#!/bin/sh
sh promtail.sh
exec /usr/local/openresty/bin/openresty -g "daemon off;"
promtail.sh:
后台方式运行，配置通过数据卷挂载
#!/bin/sh
nohup /usr/bin/promtail -config.file=/etc/promtail/promtail-docker-config2.yaml &
nginx log 配置：
很简单，就是基本的配置
worker_processes 1;
+ error_log /var/log/error.log error;
user root;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
gzip on;
resolver 114.114.114.114;
real_ip_header X-Forwarded-For;
real_ip_recursive on;
+ log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
+ access_log /var/log/access.log main;
promtail ，loki 配置可以参考项目：https://github.com/rongfengliang/grafana-loki-demo
https://www.cnblogs.com/rongfengliang/p/10112500.html
启动&&测试
- 构建包含agent 的 nginx
docker-compose build
- 启动
docker-compose up -d
- 测试
具体ui 添加loki datasource 参考https://www.cnblogs.com/rongfengliang/p/10112500.html
参考资料
https://www.cnblogs.com/rongfengliang/p/10112500.html
https://github.com/grafana/loki#getting-started
https://github.com/rongfengliang/grafana-loki-demo