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| IAMUSERID %{NUMBER:iam_user_id} | |
| IAMUSERNAME [a-zA-Z0-9._-]+ | |
| IAMUSER arn:aws:iam::%{IAMUSERID}:user/%{IAMUSERNAME:iam_user_name} | |
| S3TYPE [a-zA-z_]+ | |
| S3OP [a-zA-z]+ | |
| S3SOAPOPERATION (?:SOAP\.%{S3OP}) | |
| S3RESTOPERATION (?:REST\.%{S3OP}(\.%{S3TYPE})?) | |
| S3WEBSITEOPERATION (?:WEBSITE\.%{S3OP}\.%{S3TYPE}) | |
| S3OPERATION (?:%{S3SOAPOPERATION}|%{S3RESTOPERATION}|%{S3WEBSITEOPERATION}) | |
| S3ERRORCODE [a-zA-z]+ | |
| S3KEY [a-zA-Z0-9\/_\.\-%]+ | |
| S3ACCESSLOG1 %{BASE16NUM:s3_owner} (-|%{HOSTNAME:s3_bucket}) \[%{HTTPDATE:timestamp}\] %{IP:s3_remote_ip} (-|%{IAMUSER:s3_requester}|%{BASE16NUM:s3_requester}) | |
| S3ACCESSLOG2 %{BASE16NUM:s3_request_id} %{S3OPERATION:s3_operation} (-|%{S3KEY:s3_key}) (-|\"%{DATA:s3_request}\") | |
| S3ACCESSLOG3 %{NUMBER:s3_status} (-|%{S3ERRORCODE:s3_error_code}) (-|%{NUMBER:s3_bytes_sent:int}) (-|%{NUMBER:s3_object_size:int}) | |
| S3ACCESSLOG4 (-|%{NUMBER:s3_request_time}) (-|%{NUMBER:s3_turnaround_time}) (-|\"(-|%{DATA:s3_referrer})\");? (-|\"%{DATA:s3_user_agent}\") (-|%{BASE16NUM:s3_version_id}) | |
| S3ACCESSLOG %{S3ACCESSLOG1} %{S3ACCESSLOG2} %{S3ACCESSLOG3} %{S3ACCESSLOG4} |
the spaces between keyword and regex here might need to be removed: https://gist.github.com/lasconic/9089182#file-aws-L8-L9
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S3TYPE is not limited to OBJECT but can be ACL, BUCKET, PREFLIGHT etc....
S3TYPE is optional in S3RESTOPERATION.
S3KEY can contain - and %. Actually there is no restriction for s3key so it could be any characters but spaces, maybe in next revision
The log can have a ; between referer and user agent...
Most of the fields can be - and some can even be - or "-".
Convert s3_object_size and s3_bytes_sent to int to be able to sum them in Kibana