

# Create scheduled actions for Application Auto Scaling using the AWS CLI
<a name="create-scheduled-actions"></a>

The following examples show how to create scheduled actions using the AWS CLI [put-scheduled-action](https://docs.aws.amazon.com/cli/latest/reference/application-autoscaling/put-scheduled-action.html) command. When you specify the new capacity, you can specify a minimum capacity, a maximum capacity, or both.

These examples use scalable targets for a few of the services that integrate with Application Auto Scaling. To use a different scalable target, specify its namespace in `--service-namespace`, its scalable dimension in `--scalable-dimension`, and its resource ID in `--resource-id`.

When using the AWS CLI, remember that your commands run in the AWS Region configured for your profile. If you want to run the commands in a different Region, either change the default Region for your profile, or use the `--region` parameter with the command.

**Topics**
+ [Create a scheduled action that occurs only once](#one-time-schedule)
+ [Create a scheduled action that runs on a recurring interval](#recurrence-schedule-rate)
+ [Create a scheduled action that runs on a recurring schedule](#recurrence-schedule-cron)
+ [Create a one-time scheduled action that specifies a time zone](#one-time-schedule-set-time-zone)
+ [Create a recurring scheduled action that specifies a time zone](#recurring-schedule-set-time-zone)

## Create a scheduled action that occurs only once
<a name="one-time-schedule"></a>

To automatically scale your scalable target one time only, at a specified date and time, use the `--schedule "at(yyyy-mm-ddThh:mm:ss)"` option.

**Example: To scale out one time only**  
The following is an example of creating a scheduled action to scale out capacity at a specific date and time.   
At the date and time specified for `--schedule` (10:00 PM UTC on March 31, 2021), if the value specified for `MinCapacity` is above the current capacity, Application Auto Scaling scales out to `MinCapacity`.  
**Linux, macOS, or Unix**  

```
aws application-autoscaling put-scheduled-action --service-namespace custom-resource \
  --scalable-dimension custom-resource:ResourceType:Property \
  --resource-id file://~/custom-resource-id.txt \
  --scheduled-action-name scale-out \
  --schedule "at(2021-03-31T22:00:00)" \
  --scalable-target-action MinCapacity=3
```
**Windows**  

```
aws application-autoscaling put-scheduled-action --service-namespace custom-resource ^
  --scalable-dimension custom-resource:ResourceType:Property ^
  --resource-id file://~/custom-resource-id.txt ^
  --scheduled-action-name scale-out ^
  --schedule "at(2021-03-31T22:00:00)" ^
  --scalable-target-action MinCapacity=3
```
When this scheduled action runs, if the maximum capacity is less than the value specified for minimum capacity, you must specify a new minimum and maximum capacity, and not just the minimum capacity. 

**Example: To scale in one time only**  
The following is an example of creating a scheduled action to scale in capacity at a specific date and time.   
At the date and time specified for `--schedule` (10:30 PM UTC on March 31, 2021), if the value specified for `MaxCapacity` is below the current capacity, Application Auto Scaling scales in to `MaxCapacity`.  
**Linux, macOS, or Unix**  

```
aws application-autoscaling put-scheduled-action --service-namespace custom-resource \
  --scalable-dimension custom-resource:ResourceType:Property \
  --resource-id file://~/custom-resource-id.txt \
  --scheduled-action-name scale-in \
  --schedule "at(2021-03-31T22:30:00)" \
  --scalable-target-action MinCapacity=0,MaxCapacity=0
```
**Windows**  

```
aws application-autoscaling put-scheduled-action --service-namespace custom-resource ^
  --scalable-dimension custom-resource:ResourceType:Property ^
  --resource-id file://~/custom-resource-id.txt ^
  --scheduled-action-name scale-in ^
  --schedule "at(2021-03-31T22:30:00)" ^
  --scalable-target-action MinCapacity=0,MaxCapacity=0
```

## Create a scheduled action that runs on a recurring interval
<a name="recurrence-schedule-rate"></a>

To schedule scaling at a recurring interval, use the `--schedule "rate(value unit)"` option. The value must be a positive integer. The unit can be `minute`, `minutes`, `hour`, `hours`, `day`, or `days`. For more information, see [Rate expressions](https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-scheduled-rule-pattern.html#eb-rate-expressions) in the *Amazon EventBridge User Guide*.

The following is an example of a scheduled action that uses a rate expression. 

On the specified schedule (every 5 hours starting on January 30, 2021 at 12:00 PM UTC and ending on January 31, 2021 at 10:00 PM UTC), if the value specified for `MinCapacity` is above the current capacity, Application Auto Scaling scales out to `MinCapacity`. If the value specified for `MaxCapacity` is below the current capacity, Application Auto Scaling scales in to `MaxCapacity`. 

**Linux, macOS, or Unix**

```
aws application-autoscaling put-scheduled-action --service-namespace ecs \
  --scalable-dimension ecs:service:DesiredCount \
  --resource-id service/my-cluster/my-service \
  --scheduled-action-name my-recurring-action \
  --schedule "rate(5 hours)" \
  --start-time 2021-01-30T12:00:00 \
  --end-time 2021-01-31T22:00:00 \
  --scalable-target-action MinCapacity=3,MaxCapacity=10
```

**Windows**

```
aws application-autoscaling put-scheduled-action --service-namespace ecs ^
  --scalable-dimension ecs:service:DesiredCount ^
  --resource-id service/my-cluster/my-service ^
  --scheduled-action-name my-recurring-action ^
  --schedule "rate(5 hours)" ^
  --start-time 2021-01-30T12:00:00 ^
  --end-time 2021-01-31T22:00:00 ^
  --scalable-target-action MinCapacity=3,MaxCapacity=10
```

## Create a scheduled action that runs on a recurring schedule
<a name="recurrence-schedule-cron"></a>

To schedule scaling on a recurring schedule, use the `--schedule "cron(fields)"` option. For more information, see [Schedule recurring scaling actions using Application Auto Scaling](scheduled-scaling-using-cron-expressions.md).

The following is an example of a scheduled action that uses a cron expression. 

On the specified schedule (every day at 9:00 AM UTC), if the value specified for `MinCapacity` is above the current capacity, Application Auto Scaling scales out to `MinCapacity`. If the value specified for `MaxCapacity` is below the current capacity, Application Auto Scaling scales in to `MaxCapacity`.

**Linux, macOS, or Unix**

```
aws application-autoscaling put-scheduled-action --service-namespace appstream \
  --scalable-dimension appstream:fleet:DesiredCapacity \
  --resource-id fleet/sample-fleet \
  --scheduled-action-name my-recurring-action \
  --schedule "cron(0 9 * * ? *)" \
  --scalable-target-action MinCapacity=10,MaxCapacity=50
```

**Windows**

```
aws application-autoscaling put-scheduled-action --service-namespace appstream ^
  --scalable-dimension appstream:fleet:DesiredCapacity ^
  --resource-id fleet/sample-fleet ^
  --scheduled-action-name my-recurring-action ^
  --schedule "cron(0 9 * * ? *)" ^
  --scalable-target-action MinCapacity=10,MaxCapacity=50
```

## Create a one-time scheduled action that specifies a time zone
<a name="one-time-schedule-set-time-zone"></a>

Scheduled actions are set to the UTC time zone by default. To specify a different time zone, include the `--timezone` option and specify the canonical name for the time zone (`America/New_York`, for example). For more information, see [https://www.joda.org/joda-time/timezones.html](https://www.joda.org/joda-time/timezones.html), which provides information about the IANA time zones that are supported when calling [put-scheduled-action](https://docs.aws.amazon.com/cli/latest/reference/application-autoscaling/put-scheduled-action.html).

The following is an example that uses the `--timezone` option when creating a scheduled action to scale capacity at a specific date and time. 

At the date and time specified for `--schedule` (5:00 PM local time on January 31, 2021), if the value specified for `MinCapacity` is above the current capacity, Application Auto Scaling scales out to `MinCapacity`. If the value specified for `MaxCapacity` is below the current capacity, Application Auto Scaling scales in to `MaxCapacity`.

**Linux, macOS, or Unix**

```
aws application-autoscaling put-scheduled-action --service-namespace comprehend \
  --scalable-dimension comprehend:document-classifier-endpoint:DesiredInferenceUnits \
  --resource-id arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE \
  --scheduled-action-name  my-one-time-action \
  --schedule "at(2021-01-31T17:00:00)" --timezone "America/New_York" \
  --scalable-target-action MinCapacity=1,MaxCapacity=3
```

**Windows**

```
aws application-autoscaling put-scheduled-action --service-namespace comprehend ^
  --scalable-dimension comprehend:document-classifier-endpoint:DesiredInferenceUnits ^
  --resource-id arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE ^
  --scheduled-action-name  my-one-time-action ^
  --schedule "at(2021-01-31T17:00:00)" --timezone "America/New_York" ^
  --scalable-target-action MinCapacity=1,MaxCapacity=3
```

## Create a recurring scheduled action that specifies a time zone
<a name="recurring-schedule-set-time-zone"></a>

The following is an example that uses the `--timezone` option when creating a recurring scheduled action to scale capacity. For more information, see [Schedule recurring scaling actions using Application Auto Scaling](scheduled-scaling-using-cron-expressions.md).

On the specified schedule (every Monday through Friday at 6:00 PM local time), if the value specified for `MinCapacity` is above the current capacity, Application Auto Scaling scales out to `MinCapacity`. If the value specified for `MaxCapacity` is below the current capacity, Application Auto Scaling scales in to `MaxCapacity`.

**Linux, macOS, or Unix**

```
aws application-autoscaling put-scheduled-action --service-namespace lambda \
  --scalable-dimension lambda:function:ProvisionedConcurrency \
  --resource-id function:my-function:BLUE \
  --scheduled-action-name my-recurring-action \
  --schedule "cron(0 18 ? * MON-FRI *)" --timezone "Etc/GMT+9" \
  --scalable-target-action MinCapacity=10,MaxCapacity=50
```

**Windows**

```
aws application-autoscaling put-scheduled-action --service-namespace lambda ^
  --scalable-dimension lambda:function:ProvisionedConcurrency ^
  --resource-id function:my-function:BLUE ^
  --scheduled-action-name my-recurring-action ^
  --schedule "cron(0 18 ? * MON-FRI *)" --timezone "Etc/GMT+9" ^
  --scalable-target-action MinCapacity=10,MaxCapacity=50
```