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enable-domain-logging

Default Severity: medium

Explanation

Amazon ES exposes four Elasticsearch logs through Amazon CloudWatch Logs: error logs, search slow logs, index slow logs, and audit logs.

Search slow logs, index slow logs, and error logs are useful for troubleshooting performance and stability issues.

Audit logs track user activity for compliance purposes.

All the logs are disabled by default.

Possible Impact

Logging provides vital information about access and usage

Suggested Resolution

Enable logging for ElasticSearch domains

Insecure Example

The following example will fail the aws-elastic-search-enable-domain-logging check. 

 resource "aws_elasticsearch_domain" "bad_example" {
   domain_name           = "example"
   elasticsearch_version = "1.5"
 }

Secure Example

The following example will pass the aws-elastic-search-enable-domain-logging check. 

 resource "aws_elasticsearch_domain" "good_example" {
   domain_name           = "example"
   elasticsearch_version = "1.5"

   log_publishing_options {
     cloudwatch_log_group_arn = aws_cloudwatch_log_group.example.arn
     log_type                 = "AUDIT_LOGS"
     enabled                  = true  
   }
 }