--- title: CloudWatch overview: Adapter for cloudwatch metrics. location: https://istio.io/docs/reference/config/adapters/cloudwatch.html layout: protoc-gen-docs number_of_entries: 3 ---

The CloudWatch adapter enables Istio to deliver metrics to Amazon CloudWatch.

To push metrics to CloudWatch using this adapter you must provide AWS credentials the AWS SDK. (see AWS docs).

To activate the CloudWatch adapter, operators need to provide configuration for the cloudwatch adapter.

The handler configuration must contain the same metrics as the instance configuration. The metrics specified in both instance and handler configurations will be sent to CloudWatch.

## Params

Configuration for the `cloudwatch` adapter.

Field | Type | Description
--- | --- | ---
`namespace` | `string` | CloudWatch metric namespace.
`metricInfo` | `map<string, Params.MetricDatum>` | A map of Istio metric name to CloudWatch metric info.

## Params.MetricDatum

CloudWatch metric format.

Field | Type | Description
--- | --- | ---
`unit` | `Params.MetricDatum.Unit` | The unit of the metric. Must be valid cloudwatch unit value. CloudWatch docs

## Params.MetricDatum.Unit

Name | Description
--- | ---
`None` |
`Seconds` |
`Microseconds` |
`Milliseconds` |
`Count` |
`Bytes` |
`Kilobytes` |
`Megabytes` |
`Gigabytes` |
`Terabytes` |
`Bits` |
`Kilobits` |
`Megabits` |
`Gigabits` |
`Terabits` |
`Percent` |
`Bytes_Second` |
`Kilobytes_Second` |
`Megabytes_Second` |
`Gigabytes_Second` |
`Terabytes_Second` |
`Bits_Second` |
`Kilobits_Second` |
`Megabits_Second` |
`Gigabits_Second` |
`Terabits_Second` |
`Count_Second` |