Lambda function to schedule resource shutdown and startup to save costs. The function is triggered by CloudWatch Events controlled by schedule expressions.
Currently the function supports scaling the following resources:
- CloudWatch alarms: enables/disables the alarm actions.
- ECS services: scales the service between 0 and 1 tasks.
- RDS clusters: stops/starts the cluster.
- Route53 healthchecks: enables/disables the healthcheck.
No requirements.
| Name | Version |
|---|---|
| archive | n/a |
| aws | n/a |
No modules.
| Name | Type |
|---|---|
| aws_cloudwatch_event_rule.schedule | resource |
| aws_cloudwatch_event_target.schedule | resource |
| aws_cloudwatch_log_group.schedule | resource |
| aws_iam_policy.schedule | resource |
| aws_iam_role.schedule | resource |
| aws_iam_role_policy_attachment.schedule | resource |
| aws_lambda_function.schedule | resource |
| aws_lambda_permission.schedule | resource |
| archive_file.schedule | data source |
| aws_iam_policy_document.assume_role_policy | data source |
| aws_iam_policy_document.cloudwatch_alarm_policy | data source |
| aws_iam_policy_document.cloudwatch_policy | data source |
| aws_iam_policy_document.combined | data source |
| aws_iam_policy_document.ecs_service_policy | data source |
| aws_iam_policy_document.rds_cluster_policy | data source |
| aws_iam_policy_document.route53_healthcheck_policy | data source |
| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| billing_tag_key | (Optional, default 'CostCentre') The name of the billing tag | string |
"CostCentre" |
no |
| billing_tag_value | (Required) The value of the billing tag | string |
n/a | yes |
| cloudwatch_alarm_arns | (Optional) CloudWatch alarm ARNs to enable/disable. | list(string) |
[] |
no |
| ecs_service_arns | (Optional) ECS service ARNs to scale up/down. | list(string) |
[] |
no |
| lambda_runtime | (Optional, defaults to 3.11) The Python runtime to use for the lambda function. | string |
"python3.11" |
no |
| rds_cluster_arns | (Optional) RDS cluster ARNs to shutdown and startup. | list(string) |
[] |
no |
| route53_healthcheck_arns | (Optional) Route53 healthcheck ARNs to enable/disable. | list(string) |
[] |
no |
| schedule_shutdown | (Optional, every day at 10pm UTC) The schedule expression for when resources should be stopped. | string |
"cron(0 22 * * ? *)" |
no |
| schedule_startup | (Optional, Monday-Friday at 10am UTC) The schedule expression for when resources should be started. | string |
"cron(0 10 ? * MON-FRI *)" |
no |
No outputs.