When you use an elastic container instance to provide long-term services, you can use reserved instances to offset the cost of the elastic container instance. This topic describes how to use reserved instances.
- Reserved instances are purchased based on your business requirements. For more information, see Purchase reserved instances.
- Reserved instances are checked and managed. For more information, see Split a reserved instance.
How to use reserved instances
A reserved instance is applicable only when you create an elastic container instance based on a specified Elastic Compute Service (ECS) instance type. For more information, see Create an ECI from a specified ECS instance type.
Add the following
annotation to the
template field of pod configurations. In this example, the reserved instance is used to purchase
annotations: k8s.aliyun.com/eci-instance-type : "ecs.c5.large" # Replace the value with the actual ECS instance type in the following format: ecs.instance family.instance specification. For example, ecs.c6.3xlarge.
annotationsmust be added to the
specfield of pod configurations. Specify the ECS instance type based on your requirements. For more information about the supported ECS instance types, see Instance family.
annotations must be added to the
metadata field of pod configurations.
apiVersion: apps/v1 kind: Deployment metadata: name: nginx labels: app: nginx spec: replicas: 2 selector: matchLabels: app: nginx template: metadata: labels: app: nginx annotations: k8s.aliyun.com/eci-instance-type : "ecs.c5.large" # Replace the value with the actual ECS instance type based on your requirements. containers: - name: nginx image: nginx:1.7.9 ports: - containerPort: 80
View the billing and application details about a reserved instance
- Log on to the ECS console.
- In the left-side navigation pane, choose .
- In the top navigation bar, select a region.
- Find the reserved instance that you want to view and click View Bill in the Actions column.
- On the Manage Reserved Instances page, click the Details tab. You can view the usage details of the reserved instance. These details show the ECS instance or elastic container instance whose fees are offset by the reserved instance during every billing hour.Note One computing unit equals one vCPU. The applicable duration (hours) equals the number of computing units multiplied by the number of hours.