开发cloudify配方文件- Web Management Console

配置Web Management Console

Cloudify web management console提供一个基于web的图形用户界面来监控你的应用和其对应的服务。特别在Applications视图下，通过线性图和仪表盘小部件来展示被选中的服务监控指标，每个小部件展示默认的度量，但也可以通过下来菜单来选择其他度量值。度量面板的布局和下拉菜单都要在各自的服务描述文件中配置。

内置和自定义指标

默认情况下， Cloudify监控CPU和内存的使用率这些通用指标，但是它还可以使用下面的自定义机制监控其他更具体的指标

Monitoring Probes closures that emit metrics and their current value.

Monitoring Plugins
classes that emit metrics and their current value.
Cloudify每5秒调用probe或插件，并返回一个包含指标名与对应值的Map，内置和自定义指标都要在web management console中展示
配置指标部件
在 web management console中， Applications视图包含一个专有的窗格来展示监控指标，并允许你通过下拉菜单来选择度量值。默认下，度量指标描述在widgets块中，布局在thewidgetsGroup块描述
下面是PetClinic 应用下的Mongo 数据库服务描述文件下的userInterface块， metricGroups 块描述MongoDB的6个指标的指标组。 widgetGroups块描述上面6个指标的展示图表和布局。

userInterface { metricGroups = ([ metricGroup { name "MongoDB" metrics([ "Open Cursors", "Current Active Connections", "Active Read Clients", "Active Write Clients", "Read Clients Waiting", "Write Clients Waiting" ]) } ]) widgetGroups = ([ widgetGroup { name "Open Cursors" widgets ([ balanceGauge{metric = "Open Cursors"}, barLineChart{ metric "Open Cursors" axisYUnit Unit.REGULAR }, ]) }, widgetGroup { name "Current Active Connections" widgets ([ balanceGauge{metric = "Current Active Connections"}, barLineChart{ metric "Current Active Connections" axisYUnit Unit.REGULAR }, ]) }, widgetGroup { name "Active Read Clients" widgets ([ balanceGauge{metric = "Active Read Clients"}, barLineChart{ metric "Active Read Clients" axisYUnit Unit.REGULAR }, ]) }, widgetGroup { name "Active Write Clients" widgets ([ balanceGauge{metric = "Active Write Clients"}, barLineChart{ metric "Active Write Clients" axisYUnit Unit.REGULAR }, ]) }, widgetGroup { name "Read Clients Waiting" widgets ([ balanceGauge{metric = "Read Clients Waiting"}, barLineChart{ metric "Read Clients Waiting" axisYUnit Unit.REGULAR }, ]) }, widgetGroup { name "Write Clients Waiting" widgets ([ balanceGauge{metric = "Write Clients Waiting"}, barLineChart{ metric "Write Clients Waiting" axisYUnit Unit.REGULAR }, ]) } ]) }

内置的配方例子
可以查看cloudify例子：
PetClinic 配方 <cloudifyRoot>/examples/petclinic.
tomcat 配方 /examples/petclinic/tomcat/tomcat-service.groovy（JMX插件）
MongoDB 配方 /examples/petclinic/mongod （使用java API连接MongoDB、MongoDB API命令获取监控指标的自定义插件