配置 Amazon ECS 容量提供程序,以安全关闭实例
使用 Amazon ECS 控制台和 Amazon CLI 创建或更新自动扩缩组容量提供程序时,您可以开启托管式实例耗尽功能。
注意
创建容量提供程序时,默认情况下,托管式实例耗尽功能已开启。
以下是使用 Amazon CLI 创建启用托管实例耗尽功能的容量提供程序,以及为集群的现有容量提供程序启用托管实例耗尽功能的示例。
创建启用托管实例耗尽功能的容量提供程序
要创建启用托管实例耗尽功能的容量提供程序,请使用 create-capacity-provider
命令。将 managedDraining
参数设置为 ENABLED
。
aws ecs create-capacity-provider \ --name capacity-provider \ --auto-scaling-group-provider '{ "autoScalingGroupArn": "asg-arn", "managedScaling": { "status": "ENABLED", "targetCapacity": 100, "minimumScalingStepSize": 1, "maximumScalingStepSize": 1 }, "managedDraining": "ENABLED", "managedTerminationProtection": "ENABLED", }'
响应:
{ "capacityProvider": { "capacityProviderArn": "capacity-provider-arn", "name": "capacity-provider", "status": "ACTIVE", "autoScalingGroupProvider": { "autoScalingGroupArn": "asg-arn", "managedScaling": { "status": "ENABLED", "targetCapacity": 100, "minimumScalingStepSize": 1, "maximumScalingStepSize": 1 }, "managedTerminationProtection": "ENABLED" "managedDraining": "ENABLED" } } }
为集群的现有容量提供程序启用托管实例耗尽功能
使用 update-capacity-provider
命令为集群的现有容量提供程序启用托管实例耗尽功能。您会看到 managedDraining
目前显示为 DISABLED
而 updateStatus
显示为 UPDATE_IN_PROGRESS
。
aws ecs update-capacity-provider \ --name cp-draining \ --auto-scaling-group-provider '{ "managedDraining": "ENABLED" }
响应:
{ "capacityProvider": { "capacityProviderArn": "cp-draining-arn", "name": "cp-draining", "status": "ACTIVE", "autoScalingGroupProvider": { "autoScalingGroupArn": "asg-draining-arn", "managedScaling": { "status": "ENABLED", "targetCapacity": 100, "minimumScalingStepSize": 1, "maximumScalingStepSize": 1, "instanceWarmupPeriod": 300 }, "managedTerminationProtection": "DISABLED", "managedDraining": "DISABLED" // before update }, "updateStatus": "UPDATE_IN_PROGRESS", // in progress and need describe again to find out the result "tags": [ ] } }
使用 describe-clusters
命令并包含 ATTACHMENTS
。托管实例耗尽 attachment 的 status
为 PRECREATED
,总体 attachmentsStatus
为 UPDATING
。
aws ecs describe-clusters --clusters cluster-name --include ATTACHMENTS
响应:
{ "clusters": [ { ... "capacityProviders": [ "cp-draining" ], "defaultCapacityProviderStrategy": [], "attachments": [ # new precreated managed draining attachment { "id": "a1b2c3d4-5678-90ab-cdef-EXAMPLE11111", "type": "managed_draining", "status": "PRECREATED", "details": [ { "name": "capacityProviderName", "value": "cp-draining" }, { "name": "autoScalingLifecycleHookName", "value": "ecs-managed-draining-termination-hook" } ] }, ... ], "attachmentsStatus": "UPDATING" } ], "failures": [] }
更新完成后,使用 describe-capacity-providers
,您将看到 managedDraining
现在为 ENABLED
。
aws ecs describe-capacity-providers --capacity-providers cp-draining
响应:
{ "capacityProviders": [ { "capacityProviderArn": "cp-draining-arn", "name": "cp-draining", "status": "ACTIVE", "autoScalingGroupProvider": { "autoScalingGroupArn": "asg-draning-arn", "managedScaling": { "status": "ENABLED", "targetCapacity": 100, "minimumScalingStepSize": 1, "maximumScalingStepSize": 1, "instanceWarmupPeriod": 300 }, "managedTerminationProtection": "DISABLED", "managedDraining": "ENABLED" // successfully update }, "updateStatus": "UPDATE_COMPLETE", "tags": [] } ] }