AWS Billing exporter using cost and explorer API for prometheus

To run it, create AWS secret key, access key and region environment varialbes.

aws_billing_exporter [flags]

Exported Metrics

Metric No	Metric Name	Meaning	Labels
1	amortized_cost	This cost metric reflects the effective cost of the upfront and monthly reservation fees spread across the billing period.	type, unit
2	blended_cost	This cost metric reflects the average cost of usage across the consolidated billing family.	type, unit
3	net_amortized_cost	This cost metric amortizes the upfront and monthly reservation fees while including discounts such as RI volume discounts.	type, unit
4	net_unblended_cost	This cost metric reflects the cost after discounts.	type, unit
5	normalized_usage_amount	Cost of amount of resource consumption like CPU.	type, unit
6	unblended_cost	Unblended costs separate discounts into their own line items. This enables you to view the amount of each discount received.	type, unit
7	usage_quantity	Usage of quantity like data in GB.	type, unit

Flags

./aws_billing_exporter --help

• web.listen-address: Address to listen on for web interface and telemetry. Default port is 9614.
• web.telemetry-path: Path under which to expose metrics. Default is "/metrics"
• aws-billing.metrics: Comma-separated list of billing metrics. Leave this argument if you want to scrape all available metrics. e.g for blended cost and usage quantity it should have "2,7"
• log.level: Logging level. info by default.
• version: Show application version.

Usage

Your aws credentials should either be in $HOME/.aws/credentials , or set via AWS_ACCESS_KEY and AWS_SECRET_ACCESS_KEY. It will also respect ec2 instances having corresponding role with the required permission to access cost and explorer API.

It will only fetch metrics from AWS when somebody will access :9614/metrics. So no periodic calls.

Following will start pulling BlendedCost aws cost metric from your AWS account

export AWS_ACCESS_KEY=<your aws key>
export AWS_SECRET_ACCESS_KEY=<your aws secret key>
export AWS_REGION=<aws region>
aws_billing_exporter --aws-billing.metrics="2"

Permission policy

You have to add inline policy for your AWS account. Following is the the json object for required permission to access cost and explorer API.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": "ce:*",
            "Resource": "*"
        }
    ]
}