[AWS] Change include_linked_accounts default value to true (elastic#3…

…5686)

metricbeat/docs/modules/aws.asciidoc

@@ -80,9 +80,9 @@ If endpoint is specified, `regions` config becomes required.
 The `include_linked_accounts` parameter is used to enable the inclusion of metrics from different accounts linked to a
 main monitoring account. By setting this parameter to true, users can gather metrics from multiple AWS accounts that are
 linked through the https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Unified-Cross-Account.html[CloudWatch cross-account observability].
-By default, the `include_linked_accounts` parameter is set to false, meaning that only metrics from the main monitoring
-account are collected. When set to true, the parameter allows the CloudWatch ListMetrics API to include metrics from
-the monitoring account and all linked accounts in the returned data, providing a comprehensive cross-account view.
+By default, the `include_linked_accounts` parameter is set to true, meaning that only metrics from the main monitoring
+account and all linked accounts are all collected. When set to false, the parameter allows the CloudWatch service to
+only retrieve metrics from the monitoring account.
 
 *_Note_:* Users should ensure that the necessary IAM roles and policies are properly set up in order to link the monitoring
 account and source accounts together.

x-pack/metricbeat/module/aws/_meta/docs.asciidoc

@@ -68,9 +68,9 @@ If endpoint is specified, `regions` config becomes required.
 The `include_linked_accounts` parameter is used to enable the inclusion of metrics from different accounts linked to a
 main monitoring account. By setting this parameter to true, users can gather metrics from multiple AWS accounts that are
 linked through the https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Unified-Cross-Account.html[CloudWatch cross-account observability].
-By default, the `include_linked_accounts` parameter is set to false, meaning that only metrics from the main monitoring
-account are collected. When set to true, the parameter allows the CloudWatch ListMetrics API to include metrics from
-the monitoring account and all linked accounts in the returned data, providing a comprehensive cross-account view.
+By default, the `include_linked_accounts` parameter is set to true, meaning that only metrics from the main monitoring
+account and all linked accounts are all collected. When set to false, the parameter allows the CloudWatch service to
+only retrieve metrics from the monitoring account.
 
 *_Note_:* Users should ensure that the necessary IAM roles and policies are properly set up in order to link the monitoring
 account and source accounts together.

x-pack/metricbeat/module/aws/aws.go

@@ -62,10 +62,10 @@ type Tag struct {
 // ModuleName is the name of this module.
 const ModuleName = "aws"
 
-// IncludeLinkedAccountsDefault defines if we should include metrics from linked AWS accounts or not. Default is false.
+// IncludeLinkedAccountsDefault defines if we should include metrics from linked AWS accounts or not. Default is true.
 // More information about cross-account Cloudwatch monitoring can be found at
 // https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Cross-Account-Cross-Region.html
-const IncludeLinkedAccountsDefault = false
+const IncludeLinkedAccountsDefault = true
 
 type LabelConstants struct {
 	AccountIdIdx             int