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layout page_title sidebar_current description
alicloud Alicloud: alicloud_ess_scaling_group docs-alicloud-resource-ess-scaling-group Provides a ESS scaling group resource.

alicloud_ess_scaling_group

Provides a ESS scaling group resource.

Example Usage

resource "alicloud_ess_scaling_group" "scaling" {
  min_size           = 1
  max_size           = 2
  removal_policies   = ["OldestInstance", "NewestInstance"]
}

Argument Reference

The following arguments are supported:

  • min_size - (Required) Minimum number of ECS instances in the scaling group. Value range: [0, 100].
  • max_size - (Required) Maximum number of ECS instances in the scaling group. Value range: [0, 100].
  • scaling_group_name - (Optional) Name shown for the scaling group, which must contain 2-40 characters (English or Chinese). If this parameter is not specified, the default value is ScalingGroupId.
  • default_cooldown - (Optional) Default cool-down time (in seconds) of the scaling group. Value range: [0, 86400]. The default value is 300s.
  • vswitch_id - (Optional) The virtual switch ID which the ecs instance to be create in.
  • removal_policies - (Optional) RemovalPolicy is used to select the ECS instances you want to remove from the scaling group when multiple candidates for removal exist. Optional values:
    • OldestInstance: removes the first ECS instance attached to the scaling group.
    • NewestInstance: removes the first ECS instance attached to the scaling group.
    • OldestScalingConfiguration: removes the ECS instance with the oldest scaling configuration.
    • Default values: OldestScalingConfiguration and OldestInstance. You can enter up to two removal policies.
  • db_instance_ids - (Optional) If an RDS instance is specified in the scaling group, the scaling group automatically attaches the Intranet IP addresses of its ECS instances to the RDS access whitelist.
    • The specified RDS instance must be in running status.
    • The specified RDS instance’s whitelist must have room for more IP addresses.
  • loadbalancer_ids - (Optional) If a Server Load Balancer instance is specified in the scaling group, the scaling group automatically attaches its ECS instances to the Server Load Balancer instance.
    • The Server Load Balancer instance must be enabled.
    • Health check must be enabled for all listener ports configured for the Server Load Balancer instance; otherwise, creation fails.
    • The Server Load Balancer instance attached with VPC-type ECS instances cannot be attached to the scaling group.
    • The default weight of an ECS instance attached to the Server Load Balancer instance is 50.

Attributes Reference

The following attributes are exported:

  • id - The scaling group ID.
  • min_size - The minimum number of ECS instances.
  • max_size - The maximum number of ECS instances.
  • scaling_group_name - The name of the scaling group.
  • default_cooldown - The default cool-down of the scaling group.
  • removal_policies - The removal policy used to select the ECS instance to remove from the scaling group.
  • db_instance_ids - The db instance id which the ECS instance attached to.
  • loadbalancer_ids - The slb instance id which the ECS instance attached to.