AWS::Evidently::Launch
Creates or updates a launch of a given feature. Before you create a launch, you must create the feature to use for the launch.
You can use a launch to safely validate new features by serving them to a specified percentage of your users while you roll out the feature. You can monitor the performance of the new feature to help you decide when to ramp up traffic to more users. This helps you reduce risk and identify unintended consequences before you fully launch the feature.
Syntax
To declare this entity in your AWS CloudFormation template, use the following syntax:
JSON
{ "Type" : "AWS::Evidently::Launch", "Properties" : { "Description" :
String
, "ExecutionStatus" :ExecutionStatusObject
, "Groups" :[ LaunchGroupObject, ... ]
, "MetricMonitors" :[ MetricDefinitionObject, ... ]
, "Name" :String
, "Project" :String
, "RandomizationSalt" :String
, "ScheduledSplitsConfig" :[ StepConfig, ... ]
, "Tags" :[ Tag, ... ]
} }
YAML
Type: AWS::Evidently::Launch Properties: Description:
String
ExecutionStatus:ExecutionStatusObject
Groups:- LaunchGroupObject
MetricMonitors:- MetricDefinitionObject
Name:String
Project:String
RandomizationSalt:String
ScheduledSplitsConfig:- StepConfig
Tags:- Tag
Properties
Description
-
An optional description for the launch.
Required: No
Type: String
Minimum:
0
Maximum:
160
Update requires: No interruption
ExecutionStatus
-
A structure that you can use to start and stop the launch.
Required: No
Type: ExecutionStatusObject
Update requires: No interruption
Groups
-
An array of structures that contains the feature and variations that are to be used for the launch. You can up to five launch groups in a launch.
Required: Yes
Type: Array of LaunchGroupObject
Minimum:
1
Maximum:
5
Update requires: No interruption
MetricMonitors
-
An array of structures that define the metrics that will be used to monitor the launch performance. You can have up to three metric monitors in the array.
Required: No
Type: Array of MetricDefinitionObject
Minimum:
0
Maximum:
3
Update requires: No interruption
Name
-
The name for the launch. It can include up to 127 characters.
Required: Yes
Type: String
Pattern:
[-a-zA-Z0-9._]*
Minimum:
1
Maximum:
127
Update requires: Replacement
Project
-
The name or ARN of the project that you want to create the launch in.
Required: Yes
Type: String
Pattern:
([-a-zA-Z0-9._]*)|(arn:[^:]*:[^:]*:[^:]*:[^:]*:project/[-a-zA-Z0-9._]*)
Minimum:
0
Maximum:
2048
Update requires: Replacement
RandomizationSalt
-
When Evidently assigns a particular user session to a launch, it must use a randomization ID to determine which variation the user session is served. This randomization ID is a combination of the entity ID and
randomizationSalt
. If you omitrandomizationSalt
, Evidently uses the launch name as therandomizationsSalt
.Required: No
Type: String
Pattern:
.*
Minimum:
0
Maximum:
127
Update requires: No interruption
ScheduledSplitsConfig
-
An array of structures that define the traffic allocation percentages among the feature variations during each step of the launch.
Required: Yes
Type: Array of StepConfig
Minimum:
1
Maximum:
6
Update requires: No interruption
-
Assigns one or more tags (key-value pairs) to the launch.
Tags can help you organize and categorize your resources. You can also use them to scope user permissions by granting a user permission to access or change only resources with certain tag values.
Tags don't have any semantic meaning to AWS and are interpreted strictly as strings of characters.
You can associate as many as 50 tags with a launch.
For more information, see Tagging AWS resources.
Required: No
Type: Array of Tag
Update requires: No interruption
Return values
Ref
When you pass the logical ID of this resource to the intrinsic Ref
function, Ref
returns the ARN of the launch. For example,
arn:aws:evidently:us-west-2:0123455678912:project/myProject/launch/myLaunch
For more information about using the Ref
function, see Ref
.
Fn::GetAtt
The Fn::GetAtt
intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.
For more information about using the Fn::GetAtt
intrinsic function, see Fn::GetAtt
.
Arn
-
The ARN of the launch. For example,
arn:aws:evidently:us-west-2:0123455678912:project/myProject/launch/myLaunch