1. 概述
- StatsD 是一个使用 Node.js 开发的简单的网络守护进程,通过 UDP 或者 TCP 方式侦听各种统计信息,包括计数器和定时器,并发送聚合信息到后端服务,例如 Graphite、ElasticSearch、InfluxDB 等等。
- Grafana 是一个使用 Go 开发的开源的、功能齐全的、好看的仪表盘和图表的编辑器,可用来做日志的分析与展示曲线图(如 api 的请求日志),支持多种 backend,如 ElasticSearch、InfluxDB、OpenTSDB 等等。
- InfluxDB 是一个使用 Go 语言开发的开源分布式时序、事件和指标数据库,无需外部依赖,其设计目标是实现分布式和水平伸缩扩展。
ref
- StatsD支持的backend
https://github.com/etsy/statsd/blob/master/docs/backend.md - grafana github
https://github.com/grafana/grafana - grafana demo
https://play.grafana.org - influxdb github
https://github.com/influxdata/influxdb
docker image
- https://hub.docker.com/r/samuelebistoletti/docker-statsd-influxdb-grafana
- https://github.com/samuelebistoletti/docker-statsd-influxdb-grafana
2. 本地启动statsd+influxdb+grafana
docker run
$ docker run --ulimit nofile=66000:66000 \
-d \
--name docker-statsd-influxdb-grafana \
-p 3003:3003 \
-p 3004:8888 \
-p 8086:8086 \
-p 22022:22 \
-p 8125:8125/udp \
samuelebistoletti/docker-statsd-influxdb-grafana:2.2.0
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1e405d343f6c samuelebistoletti/docker-statsd-influxdb-grafana:2.2.0 "/usr/bin/supervisord" 4 seconds ago Up 3 seconds 0.0.0.0:3003->3003/tcp, 0.0.0.0:8086->8086/tcp, 0.0.0.0:8125->8125/udp, 0.0.0.0:22022->22/tcp, 0.0.0.0:3004->8888/tcp docker-statsd-influxdb-grafana
SSH
ssh root@localhost -p 22022
密码:root
grafana portal
image.png地址:http://localhost:3003
账号密码:root/root
- Add data source on Grafana
Url: http://localhost:8086
Database: telegraf
User: telegraf
Password: telegraf
influxdb portal
image.pngURL: http://localhost:3004
Username: root
Password: root
Port: 8086
push data to statsd
- push_data.py
import statsd
from time import sleep, time
from random import random
STATSD_HOST = 'localhost'
client = statsd.StatsClient(host=STATSD_HOST, port= 8125, prefix='test.statsd')
def push_data_to_statsd():
service_id = 'abcd1234'
total_time = random() * 100.0
res = client.incr('service.%s.success' % service_id)
client.timing('service.%s.total_time' % service_id, total_time)
with client.timer('service.%s.calling_time' % service_id):
sleep(random())
if __name__ == '__main__':
while True:
push_data_to_statsd()
sleep(1)
- 通过Grafana配置Panel
3. K8S启动statsd+influxdb+grafana
- deploy.yml
apiVersion: apps/v1
kind: Deployment
metadata:
name: statsd-influxdb-grafana-deployment
namespace: shuzhang
spec:
replicas: 1
selector:
matchLabels:
app: statsd-influxdb-grafana
template:
metadata:
labels:
app: statsd-influxdb-grafana
spec:
containers:
- name: statsd-influxdb-grafana
image: samuelebistoletti/docker-statsd-influxdb-grafana:2.2.0
ports:
- name: grafana
containerPort: 3003
- name: influxdb-admin
containerPort: 8888
- name: influxdb
containerPort: 8086
- name: statsd
containerPort: 8125
protocol: UDP
---
apiVersion: v1
kind: Service
metadata:
name: statsd-influxdb-grafana-svc
namespace: shuzhang
spec:
ports:
- name: grafana
port: 3003
targetPort: 3003
- name: influxdb-admin
port: 3004
targetPort: 8888
- name: influxdb
port: 8086
targetPort: 8086
- name: statsd
port: 8125
targetPort: 8125
protocol: UDP
selector:
app: statsd-influxdb-grafana
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: statsd-influxdb-grafana-ing
namespace: shuzhang
# annotations:
# kubernetes.io/ingress.class: nginx
# nginx.ingress.kubernetes.io/rewrite-target: /
spec:
rules:
- host: grafana.shuzhang.io
http:
paths:
- path: /
backend:
serviceName: statsd-influxdb-grafana-svc
servicePort: 3003
- host: influxdb.shuzhang.io
http:
paths:
- path: /
backend:
serviceName: statsd-influxdb-grafana-svc
servicePort: 3004
- 本地配置dns后,可访问grafana.shuzhang.io和influxdb.shuzhang.io
172.17.8.102 grafana.shuzhang.io
172.17.8.102 influxdb.shuzhang.io
- 备注:
a. k8s貌似不能直接代理tcp/udp端口,需要创建ingress-controller,完成8125/udp端口的映射,才能被cluster外部访问
b. k8s内部访问statsd,可以直接通过service name访问statsd,如果跨namespace,也OK
4. References
- 使用 StatsD + Grafana + InfluxDB 搭建 Node.js 监控系统
https://juejin.im/entry/58561a87ac502e0067eb0113
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