Auto Scaling

Auto-scaling automatically adjusts the number of VM instances in response to real-time demand, ensuring availability while minimizing costs.

Caution

Before you begin, you need an existing Load Balancer with a load-balancing rule that has no instances attached. An autoscaling group attaches to that rule to distribute traffic, and user-bound VMs cannot coexist with an autoscale group on the same rule.

Create an Auto-Scaling Group

• From the left-hand menu, click Auto-Scaling.
• Click Create New.

Steps

1. Project: select the project.
2. Location: select the data center.
3. Network: select or create a network.
4. Load Balancer: select an existing load balancer.
5. Rule: select a load-balancing rule with no instances attached.
6. Image: select the OS (Linux or Windows) and version.
7. Storage Type: select the storage type (for example, b2.g1 or b2.g2).
8. VM Autoscale Plan: select an autoscale plan.
9. Plan: select a compute plan, or set a custom plan (CPU, memory, storage).
10. Server Settings: add an SSH key and a startup script (both optional).
11. Affinity Groups: add the instances to an affinity group (optional).
12. Capacity Planner: set Minimum Instances, Maximum Instances, Expunge VM Grace Period (seconds), and Polling Interval (seconds).
13. Scale Up Policy: add at least one. Set a Name, Duration (seconds), and Quiet Time (seconds).
14. Scale Down Policy: add at least one. Set a Name, Duration (seconds), and Quiet Time (seconds).
15. Name: enter a unique name.
16. Create: select a billing cycle and click Create.