57 lines
3.2 KiB
Markdown
57 lines
3.2 KiB
Markdown
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---
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layout: "alicloud"
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page_title: "Alicloud: alicloud_ess_scaling_group"
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sidebar_current: "docs-alicloud-resource-ess-scaling-group"
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description: |-
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Provides a ESS scaling group resource.
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---
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# alicloud\_ess\_scaling\_group
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Provides a ESS scaling group resource.
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## Example Usage
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```
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resource "alicloud_ess_scaling_group" "scaling" {
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min_size = 1
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max_size = 2
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removal_policies = ["OldestInstance", "NewestInstance"]
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}
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```
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## Argument Reference
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The following arguments are supported:
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* `min_size` - (Required) Minimum number of ECS instances in the scaling group. Value range: [0, 100].
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* `max_size` - (Required) Maximum number of ECS instances in the scaling group. Value range: [0, 100].
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* `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.
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* `default_cooldown` - (Optional) Default cool-down time (in seconds) of the scaling group. Value range: [0, 86400]. The default value is 300s.
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* `vswitch_id` - (Optional) The virtual switch ID which the ecs instance to be create in.
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* `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:
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- OldestInstance: removes the first ECS instance attached to the scaling group.
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- NewestInstance: removes the first ECS instance attached to the scaling group.
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- OldestScalingConfiguration: removes the ECS instance with the oldest scaling configuration.
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- Default values: OldestScalingConfiguration and OldestInstance. You can enter up to two removal policies.
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* `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.
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- The specified RDS instance must be in running status.
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- The specified RDS instance’s whitelist must have room for more IP addresses.
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* `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.
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- The Server Load Balancer instance must be enabled.
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- Health check must be enabled for all listener ports configured for the Server Load Balancer instance; otherwise, creation fails.
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- The Server Load Balancer instance attached with VPC-type ECS instances cannot be attached to the scaling group.
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- The default weight of an ECS instance attached to the Server Load Balancer instance is 50.
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## Attributes Reference
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The following attributes are exported:
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* `id` - The scaling group ID.
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* `min_size` - The minimum number of ECS instances.
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* `max_size` - The maximum number of ECS instances.
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* `scaling_group_name` - The name of the scaling group.
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* `default_cooldown` - The default cool-down of the scaling group.
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* `removal_policies` - The removal policy used to select the ECS instance to remove from the scaling group.
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* `db_instance_ids` - The db instance id which the ECS instance attached to.
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* `loadbalancer_ids` - The slb instance id which the ECS instance attached to.
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