The provided code snippet is a collection of utility functions designed to work with AWS CloudWatch metrics and other AWS services. Below, I'll provide an explanation for each function:
-
client_for_service_region(service: str, region: Optional[str] = None) -> Any:- This function returns a client object for the specified service in a given region.
- If no region is provided, it defaults to the primary region of the AWS session.
-
cw_stats(client, namespace: str, metric: str, dims: list[dict], days: int, stat: str = "Average", period: int = 86400) -> list[float]:- This function retrieves statistical data for a given CloudWatch metric over the past
daysnumber of days. - It uses the AWS SDK's
get_metric_statisticsmethod to fetch data points and returns them as a list of floats.
- This function retrieves statistical data for a given CloudWatch metric over the past
-
per_region(service: str, fn: Callable[[str, Any], dict]) -> dict[str, dict]:- This function applies a given function (
fn) to each active region for the specified AWS service. - It collects results from all
- This function applies a given function (
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