Autoscaling is a cloud computing feature that enables organizations to scale cloud services such as server capacities or virtual machines up or down automatically, based on defined situations such as traffic or utilization levels1. Autoscaling helps to ensure that nodes are added automatically when the load on a web cluster increases, and removed when the load decreases, tooptimize performance and costs. Autoscaling can be configured using built-in mechanisms or custom implementations, depending on the cloud service and the specific requirements2.
Autonomous systems are networks that are administered by a single entity and have a common routing policy. Autonomous systems are not related to autoscaling, but rather to network connectivity and routing protocols.
Infrastructure as code is a practice of managing and provisioning cloud resources using code or scripts, rather than manual processes or graphical interfaces. Infrastructure as code can help to automate and standardize cloud deployments, but it does not necessarily imply autoscaling, unless the code or scripts include logic for scaling resources based on demand.
Right-sizing is a technique of optimizing cloud resources to match the actual needs and usage patterns of an application or service. Right-sizing can help to reduce costs and improve efficiency, but it does not involve adding or removing nodes automatically based on load. Right-sizing is usually done periodically or on-demand, rather than continuously3.
[References: 2: https://learn.microsoft.com/en-us/azure/architecture/best-practices/auto-scaling 4: https://aws.amazon.com/autoscaling/ 1: https://www.netscaler.com/articles/what-is-autoscaling 5: https://avinetworks.com/glossary/auto-scaling/ 3: https://cloud.google.com/run/docs/about-instance-autoscaling : https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, page 42 : https://www.comptia.org/training/books/cloud-essentials-clo-002-study-guide, page 46, , , ]
