aws-cdk-lib/aws-cloudwatch: Tags don't attach to CloudWatch alarms

[BerradaYassine]

Describe the bug

#25489 (comment)

Similarly to the closed issue above, I would like to add tags to Cloudwatch alarm through CDK. Recently AWS added support for cloud formation to add tags to Cloudwatch alarm

Expected Behavior

Tags can be added to the resource and verified on the AWS console.

Current Behavior

The tags don't attach to the resource.

Reproduction Steps

import * as cdk from 'aws-cdk-lib';
import * as sns from 'aws-cdk-lib/aws-sns';
import * as cloudwatch from 'aws-cdk-lib/aws-cloudwatch';
import { Construct } from 'constructs';

export class MyStack extends cdk.Stack {
constructor(scope: Construct, id: string, props?: cdk.StackProps) {
super(scope, id, props);
const topic = new sns.Topic(this, 'Topic', {
displayName: 'My SNS topic',
});
const _alarm = new cloudwatch.Alarm(this, 'Alarm', {
metric: topic.metricNumberOfMessagesPublished(),
threshold: 10,
evaluationPeriods: 1,
alarmName: 'My SNS alarm',
alarmDescription: 'Triggered when message count exceeds 10',
comparisonOperator:
cloudwatch.ComparisonOperator.GREATER_THAN_OR_EQUAL_TO_THRESHOLD,
});
}
}
and then

import * as cdk from 'aws-cdk-lib';

const env = {
account: process.env.AWS_ACCOUNT_ID,
region: process.env.AWS_REGION,
};
const app = new cdk.App();
new MyStack(app, 'stack', {
env,
tags: {
testTag: 'testValue',
},
});
cdk.Tags.of(app).add('testTag', 'testValue');

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.136.0

Framework Version

No response

Node.js Version

v16.18.1

OS

14.4.1

Language

TypeScript

Language Version

4.8.4

Other information

No response

[bdoyle0182]

It's officially in the cloud formation release notes now as well

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/ReleaseHistory.html

[khushail]

Thanks @BerradaYassine for requesting this. Thanks @bdoyle0182 for sharing the link.
I could see that cloudformation provides needed support for L1 construct for the 'tags' props.
Contributions from community are welcome !

[Konosh93]

@khushail
Looks like this will be fixed automatically next Monday., when the following version is deployed.

"@aws-cdk/aws-service-spec": "^0.0.63",

[bdoyle0182]

Wonderful, thanks for the quick turnaround

[rgoltz]

Great hint, @Konosh93 / @bdoyle0182 - Now, it becomes less magic ;)
I ready see the PR #29798 for updating the L1 CloudFormation resource definitions, which also include:

├[~] service aws-cloudwatch
│ └ resources
│    ├[~] resource AWS::CloudWatch::Alarm
│    │ ├  - tagInformation: undefined
│    │ │  + tagInformation: {"tagPropertyName":"Tags","variant":"standard"}
│    │ └ properties
│    │    └[+] Tags: Array<tag>

Now, we just need to wait for the next CDK release, which cover/include this PR. :)

[jwilson-anonyome]

https://github.com/aws/aws-cdk/releases/tag/v2.138.0 includes #29798

[GavinZZ]

Closing this issue as the feature request for tags now exist in L1 Construct for Cloudwatch alarms.

[github-actions]

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