AWS Administration Cookbook

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• CloudWatch logs supports ingestion of traditional text-based log entries as well as JSON formatted logs.
• Logs can be ingested from other sources including CloudTrail, IAM, Kinesis Streams and Lambda.
• By default, logs are stored indefinitely. You can customize this time period to suit your needs however.
• Metric filters, like the one we created previously, can be used to graph and chart in the CloudWatch console. Add them to your dashboards as well as your alerting system.
• The CloudWatch web console allows you to test metric filters before you add them. Using this feature will save you a lot of trial and error with CloudFormation. Don't rely on the web console completely however: you should move these metric filters to CloudFormation ...