如何使用aws-cdk将查询结果小部件添加到Cloudwatch仪表板

Question

正如标题所述，我该怎么做？我想将Cloudwatch dashobard（主要包含查询结果小部件）转换为cdk。 aws-cloudwatch库当前仅具有AlarmWidget，GraphWidget，SingleValueWidget和TextWidget。

如果没有直接的方法，是否至少有某种黑客手段？

谢谢

Answer 1

如果您更喜欢添加小部件的高级方法，则可以自己实现IWidget接口。您未指定要使用的语言，这是python中的示例：

from aws_cdk import (
    aws_cloudwatch as cw,
    core
)
import jsii
import json

@jsii.implements(cw.IWidget)
class QueryResultWidget:
    def __init__(self, properties, width=24, height=6):
        self.widget =  {
            "type": "log",
            "width": width,
            "height": height,
            "properties": properties
        }

    def position(self, x, y):
        self.widget["x"] = x
        self.widget["y"] = y

    def to_json(self):
        return [self.widget]

class DashboardStack(core.Stack):
    def __init__(self, app: core.App, id: str, **kwargs) -> None:
        super().__init__(app, id, **kwargs)

        dashboard = cw.Dashboard(self, "Dashboard")

        dashboard.add_widgets(QueryResultWidget({
            "query": "SOURCE '/aws/lambda/some_lambda' | fields @timestamp, @message\n| sort @timestamp desc\n| limit 20",
            "region": "eu-west-1",
            "stacked": False,
            "view": "table"
        }))

app = core.App()
DashboardStack(app, "DashboardStack")
app.synth()