Create a trail by using CreateTrail - ActionTrail

Creates a trail to deliver events to a destination for long-term storage and analysis, such as an Object Storage Service (OSS) bucket, a Simple Log Service (SLS) Logstore, or a MaxCompute project.

Operation description

Note

By default, a trail that you create by using this API is in a disabled state. You must call the StartLogging operation operation to enable the trail. After a trail is enabled, ActionTrail begins delivering events to your specified destination.

Prerequisites

Before you create a trail, you must have at least one of the following resources configured as a destination:

OSS

You must activate OSS and create a bucket.
SLS

You must activate SLS and create a Logstore.

Note
When you create a trail with an SLS destination, ActionTrail automatically creates a Logstore named actiontrail_<trail_name> in your specified project. To ensure the integrity of your audit data, this Logstore only accepts events delivered by ActionTrail.
MaxCompute

You must activate MaxCompute.

Note
When you create a trail with a MaxCompute destination, ActionTrail automatically creates a project named actiontrail_<account_ID>. To ensure the integrity of your audit data, this project only accepts events delivered by ActionTrail.

Usage notes

This example shows how to create a single-account trail named trail-test that delivers events to an OSS bucket named audit-log.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

actiontrail:CreateTrail

create

*Trail

acs:actiontrail:{#regionId}:{#accountId}:trail/*

None

Request parameters

Parameter	Type	Required	Description	Example
Name	string	Yes	The name of the trail. Note Length: 6 to 36 characters. Characters: Lowercase letters, digits, hyphens (-), and underscores (_). Must start with a lowercase letter. Must be uniquewithin an Alibaba Cloud account.	trail-test
OssBucketName	string	No	The name of the OSS bucket to which ActionTrail delivers events. Length: 3 to 63 characters. Characters: Lowercase letters, digits, and hyphens (-). Must start with a lowercase letter or a digit. Note You must specify a destination for the trail by providing at least one of the following parameters: `OssBucketName`, `SlsProjectArn`, or `MaxComputeProjectArn`.	audit-log
OssKeyPrefix	string	No	The prefix for the names of log files that ActionTrail delivers to your OSS bucket. Length: 6 to 32 characters. Characters: Letters, digits, hyphens (-), forward slashes (/), and underscores (_). Must start with a letter.	at-product-account-audit-B
OssWriteRoleArn	string	No	The Alibaba Cloud Resource Name (ARN) of the RAM role that ActionTrail assumes to deliver events to the OSS bucket. If you do not specify this parameter, ActionTrail creates a service-linked role to deliver events. For more information, see ActionTrail service-linked role. If you specify a role, it must be a RAM role that you created. This role must have a trust policy that allows the ActionTrail service (actiontrail.aliyuncs.com) to assume it. The role's RAM policy must grant permissions to write to the specified OSS bucket. For more information about cross-account delivery, see Deliver events from multiple Alibaba Cloud accounts to the same account.	acs:ram::15127787691****:role/aliyunserviceroleforactiontrail
SlsProjectArn	string	No	The ARN of the SLS project to which ActionTrail delivers events. Note You must specify a destination for the trail by providing at least one of the following parameters: `OssBucketName`, `SlsProjectArn`, or `MaxComputeProjectArn`.	acs:log:cn-shanghai:151266687691****:project/test-project
SlsWriteRoleArn	string	No	The ARN of the RAM role that ActionTrail assumes to deliver events to the SLS project. If this parameter is not specified, ActionTrail creates a service-linked role to deliver events. For more information, see ActionTrail service-linked role. If you specify a role, it must be a RAM role that you created. This role must have a trust policy that allows the ActionTrail service (actiontrail.aliyuncs.com) to assume it. The role's permission policy must grant permissions to write to the specified SLS project. For more information about cross-account delivery, see Deliver events from multiple Alibaba Cloud accounts to the same account.	acs:ram::151266687691****:role/aliyunserviceroleforactiontrail
EventRW	string	No	Specifies the read/write type of events that the trail delivers. Valid values: Write: Write events. Read: Read events. All (default): All read and write events.	Write
TrailRegion	string	No	The region in which the trail is created. By default, a trail is created in all regions and this parameter is set to `All`. To create a trail in a specific region, provide the region ID. For more information about regions, call the DescribeRegions operation.	All
IsOrganizationTrail	boolean	No	Specifies whether the trail is a multi-account trail. Valid values: true false (default) To create a trail for an organization, set this parameter to `true`. The trail will collect events from all member accounts in the organization.	false
MaxComputeProjectArn	string	No	The ARN of the MaxCompute project to which ActionTrail delivers events. Note You must specify a destination for the trail by providing at least one of the following parameters: `OssBucketName`, `SlsProjectArn`, or `MaxComputeProjectArn`. Note The project name in the ARN must start with `actiontrail_`.	acs:odps:cn-hangzhou:15127787691**:project/actiontrail_**
MaxComputeWriteRoleArn	string	No	The ARN of the RAM role that ActionTrail assumes to deliver events to the MaxCompute project. If this parameter is not specified, ActionTrail creates a service-linked role to deliver events. For more information, see ActionTrail service-linked role. If you specify a role, it must be a RAM role that you created. This role must have a trust policy that allows the ActionTrail service (`actiontrail.aliyuncs.com`) to assume it. The role's permission policy must grant permissions to write to the specified MaxCompute project. For more information about cross-account delivery, see Deliver events from multiple Alibaba Cloud accounts to the same account.	acs:ram::15127787691****:role/aliyunserviceroleforactiontrail

For more information, see Common parameters.

Response elements

Element	Type	Description	Example
	object
EventRW	string	The read/write type of events that the trail delivers.	Write
HomeRegion	string	The home region of the trail.	cn-hangzhou
MaxComputeProjectArn	string	The ARN of the MaxCompute project to which the trail delivers events.	acs:odps:cn-hangzhou:151266687691**:project/actiontrail_**
MaxComputeWriteRoleArn	string	The ARN of the RAM role that ActionTrail assumes to deliver events to the MaxCompute project.	acs:ram::151266687691****:role/aliyunserviceroleforactiontrail
Name	string	The name of the trail.	trail-test
OssBucketName	string	The name of the destination OSS bucket.	audit-log
OssKeyPrefix	string	The prefix for the names of log files in the OSS bucket.	at-product-account-audit-B
OssWriteRoleArn	string	The ARN of the RAM role that ActionTrail assumes to deliver events to the OSS bucket.	acs:ram::151266687691****:role/aliyunserviceroleforactiontrail
RequestId	string	The request ID.	442DDADF-DA58-4029-8E8B-82C73E9A7A70
SlsProjectArn	string	The ARN of the SLS project to which the trail delivers events.	acs:log:cn-hangzhou:151266687691****:project/test-project
SlsWriteRoleArn	string	The ARN of the RAM role that ActionTrail assumes to deliver events to the SLS project.	acs:ram::151266687691****:role/aliyunserviceroleforactiontrail
TrailRegion	string	The region in which the trail is created. A value of `All` indicates that the trail processes events from all regions.	All

Examples

Success response

JSON format

{
  "EventRW": "Write",
  "HomeRegion": "cn-hangzhou",
  "MaxComputeProjectArn": "acs:odps:cn-hangzhou:151266687691****:project/actiontrail_****",
  "MaxComputeWriteRoleArn": "acs:ram::151266687691****:role/aliyunserviceroleforactiontrail",
  "Name": "trail-test",
  "OssBucketName": "audit-log",
  "OssKeyPrefix": "at-product-account-audit-B",
  "OssWriteRoleArn": "acs:ram::151266687691****:role/aliyunserviceroleforactiontrail",
  "RequestId": "442DDADF-DA58-4029-8E8B-82C73E9A7A70",
  "SlsProjectArn": "acs:log:cn-hangzhou:151266687691****:project/test-project",
  "SlsWriteRoleArn": "acs:ram::151266687691****:role/aliyunserviceroleforactiontrail",
  "TrailRegion": "All"
}

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidDeliveryConfigurationException	You must specify at least one Log Service project or OSS bucket for a Trail.
400	InvalidPrefixException	The specified OSS bucket prefix is invalid.	The specified OSS bucket prefix is not valid.
400	InvalidQueryParameter	The specified query parameter is invalid.	The specified query parameter is not valid.
400	InvalidTrailNameException	The specified Trail name is invalid.	The specified Trail name is not valid.
400	RepeatOssBucket	The specified OSS bucket is already in use. We recommend that you modify the existing Trail or specify another bucket.
400	SlsProjectDoesNotExistException	The specified Log Service project does not exist.
400	TrailAlreadyExistsException	The specified Trail name already exists.	The specified Trail name already exists,if you want to create a new Trail,please use another Trail name.
400	MaximumNumberOfOrganizationTrailExceeded	Your account can create only one organization trail.
400	NotAllowCreateOrganizationTrail	Your account does not allow you to create organization trail. Submit a ticket to get customer support.
403	InsufficientBucketPolicyException	Access to the specified OSS bucket was denied.
403	InsufficientSlsPolicyException	Access to the specified Log Service project was denied.	Access SLS Project denied.
403	MaximumNumberOfTrailsExceededException	The number of Trails in the same region exceeds the upper limit (5).	The number of Trail in same region has exceeded the limit 5
404	BucketDoesNotExistException	The specified OSS bucket does not exist.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.