One of the methods which provide a way for you to quickly identify when a deployment has failed, and then to optionally roll back the failure to the last working deployment.
When the alarms are generated, Amazon ECS sets the service deployment to failed. Set the rollback parameter to have Amazon ECS to roll back your service to the last completed deployment after a failure.
You can only use the DeploymentAlarms method to detect failures when the
DeploymentController is set to ECS (rolling
update).
For more information, see Rolling update in the Amazon Elastic Container Service Developer Guide .
Syntax
To declare this entity in your AWS CloudFormation template, use the following syntax:
JSON
{
"AlarmNames" : [ String, ... ],
"Enable" : Boolean,
"Rollback" : Boolean
}
YAML
AlarmNames:
- String
Enable: Boolean
Rollback: Boolean
Properties
AlarmNames-
One or more CloudWatch alarm names. Use a "," to separate the alarms.
Required: Yes
Type: Array of String
Update requires: No interruption
Enable-
Determines whether to use the CloudWatch alarm option in the service deployment process.
Required: Yes
Type: Boolean
Update requires: No interruption
Rollback-
Determines whether to configure Amazon ECS to roll back the service if a service deployment fails. If rollback is used, when a service deployment fails, the service is rolled back to the last deployment that completed successfully.
Required: Yes
Type: Boolean
Update requires: No interruption
See also
