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EYssel / sqs-dlq-monitoring

An AWS CDK construct to wrap AWS Simple-Queue Service (SQS) Dead-Letter Queues with a CloudWatch alarm to notify
Apache License 2.0
3 stars 1 forks source link

Consider supporting (Slack) notifications via AWS ChatBot #91

Open reisingerf opened 7 months ago

reisingerf commented 7 months ago

AWS Chatbot natively supports integration with Slack without the need for a custom Lambda.

For an idea of how that may work, see here.

reisingerf commented 7 months ago

Turns out this may not be as straight forward as I was hoping.

While this should work in principle, it may run into practical issues.

The suggested code assumes that it can create a new SlackChannelConfiguration. However, AWS currently only supports a single SlackChannelConfiguration per channel. So if that SlackChannelConfiguration has already been setup (somewhere, somehow), this will fail with a "Slack channel ... has already been configured" error.

While a SlackChannelConfiguration can be imported into a stack, it would be read-only, i.e. no new topics could be added. See here for context.

I think an alternative could be to use an existing SNS Topic rather than creating a new one. A topic that's provided by the same stack/process that's in control of the SlackChannelConfiguration.

However, that means the monitored queue would need to support an existing SNS topic (ITopic).