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Ulric Qin/dinp-hm

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README

HM

HM(Health Monitor)用于APP rs (docker container) 的7层健康检查。 如要开启APP rs的7层健康检查,在DashBoard的APP页面的health栏填写健康检查的URL (如/health)。

HM每隔check_interval (单位s)

  • 从Server模块的DB中查询需要健康检查的APP列表 (即health字段不为空的APP),
  • 从Server模块的HTTP接口中查询APP及相应的rs列表, 然后curl相应的rs,如果在response_timeout (单位s) 内返回内容包括health_sign,则视该rs为健康;否则将杀掉该rs (docker container),由Server模块进行调度创建新的rs。

配置项说明

  • debug: true/false 只影响打印的log
  • check_interval: 健康检查的周期,单位s
  • dockerPort: Docker Daemon的侦听端口
  • response_timeout: APP health接口的响应超时时间,单位s
  • health_sign: APP health接口的返回内容,如'''ok'''
  • server_http_api: DINP Server模块的http api接口
  • db: DINP Server模块数据库的地址,以及超时时间

install

mkdir -p $GOPATH/src/github.com/dinp
cd $GOPATH/src/github.com/dinp; git clone https://github.com/dinp/hm.git
cd hm
go get ./...

# check cfg.json, depend docker daemon and server
hm -c cfg.json

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DINP中的Health Monitor,对APP的rs进行7层健康检查 expand collapse
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