This repository contains the Terraform configuration and Python code for a lambda function which periodically reads the list of all instances and that of all reserved instances to produce useful CloudWatch metrics:
- On-demand instance count per type, AZ, tenancy and platform;
- Reserved instance count per type, AZ, tenancy and platform;
- Count of on-demand instances benefitting from instance reservations (estimation) per type, AZ, tenancy and platform;
- Count of reserved instances match by no on-demand instances per type, AZ, tenancy and platform;
In order to deploy this you need to have AWS credentials configured using any of the standard ways supported by the AWS SDKs, and you need to have an up to date version of Terraform installed.
- Edit
provider.tfto set the region you want the metrics to be generated in. - Run
terraform init - Run
terraform apply - Metrics should appear soon in CloudWatch under the “Trackit” namespace.