def _add_text_widget(self, markdown):
"""Add the textwidget to the cloudwatch dashboard and update coordinates."""
text_widget = cloudwatch.TextWidget(markdown="\n" + markdown + "\n",
height=1,
width=MAX_WIDTH)
text_widget.position(x=self.coord.x_value, y=self.coord.y_value)
self.cloudwatch_dashboard.add_widgets(text_widget)
self._update_coord_after_section(d_y=1)
def text_widget(text, size="###"):
return aws_cloudwatch.TextWidget(markdown=f"{size} {text}",
height=1,
width=24)
def __init__(self, scope: Construct, construct_id: str, **kwargs) -> None:
super().__init__(scope, construct_id, **kwargs)
example_dashboard_name = "ExampleLambdaDashboard"
# Create Example Lambda function
lambda_function = aws_lambda.Function(
self,
"lambda_function",
runtime=aws_lambda.Runtime.PYTHON_3_7,
handler="lambda-handler.main",
code=aws_lambda.Code.from_asset("./lambda"))
lambda_function.role.add_managed_policy(
aws_iam.ManagedPolicy.from_aws_managed_policy_name(
"service-role/AWSLambdaBasicExecutionRole"))
# Create CloudWatch Dashboard to view Lambda Function Metrics
cw_dashboard = aws_cloudwatch.Dashboard(
self, "Lambda Dashboard", dashboard_name=example_dashboard_name)
# CloudWatch Dashboard Title
title_widget = aws_cloudwatch.TextWidget(
markdown="# Dashboard: {}".format(lambda_function.function_name),
height=1,
width=24)
# Create Widgets for CloudWatch Dashboard based on Lambda Function's CloudWatch Metrics
invocations_widget = aws_cloudwatch.GraphWidget(
title="Invocations",
left=[lambda_function.metric_invocations()],
width=24)
errors_widget = aws_cloudwatch.GraphWidget(
title="Errors", left=[lambda_function.metric_errors()], width=24)
duration_widget = aws_cloudwatch.GraphWidget(
title="Duration",
left=[lambda_function.metric_duration()],
width=24)
throttles_widget = aws_cloudwatch.GraphWidget(
title="Throttles",
left=[lambda_function.metric_throttles()],
width=24)
# Create Widget to show last 20 Log Entries
log_widget = aws_cloudwatch.LogQueryWidget(
log_group_names=[lambda_function.log_group.log_group_name],
query_lines=[
"fields @timestamp, @message", "sort @timestamp desc",
"limit 20"
],
width=24)
# Add Widgets to CloudWatch Dashboard
cw_dashboard.add_widgets(title_widget, invocations_widget,
errors_widget, duration_widget,
throttles_widget, log_widget)
# Output Dashboard URL
cloudwatch_dasboard_url = 'https://{}.console.aws.amazon.com/cloudwatch/home?region={}#dashboards:name={}'.format(
Aws.REGION, Aws.REGION, example_dashboard_name)
CfnOutput(self,
"DashboardOutput",
value=cloudwatch_dasboard_url,
description="URL of Sample CloudWatch Dashboard",
export_name="SampleCloudWatchDashboardURL")
CfnOutput(self,
"LambdaName",
value=lambda_function.function_name,
description="Name of the sample Lambda Function",
export_name="LambdaName")