CloudWatch embedded metrics

[rschick]

Tell us about your request

It would be great to support CloudWatch embedded metrics in App Runner application logs. They don't appear to work currently.

Describe alternatives you've considered

• application could send metric logs itself but this would introduce latency to requests
• add a subscription filter to the log group and have lambda forward metrics logs

Additional context

Not sure how App Runner handles logs, but if it uses the CloudWatch agent then it may not be configured with the "metrics_collected" setting described on this page: Using the CloudWatch agent to send embedded metric format logs

Other links:

• Generating logs using the embedded metric format