cloudwatch

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Published: Mar 24, 2017 License: MIT Imports: 10 Imported by: 0

README

Amazon CloudWatch Output for Telegraf

This plugin will send metrics to Amazon CloudWatch.

Amazon Authentication

This plugin uses a credential chain for Authentication with the CloudWatch API endpoint. In the following order the plugin will attempt to authenticate.

  1. Assumed credentials via STS if role_arn attribute is specified (source credentials are evaluated from subsequent rules)
  2. Explicit credentials from access_key, secret_key, and token attributes
  3. Shared profile from profile attribute
  4. Environment Variables
  5. Shared Credentials
  6. EC2 Instance Profile

Config

For this output plugin to function correctly the following variables must be configured.

  • region
  • namespace

region

The region is the Amazon region that you wish to connect to. Examples include but are not limited to:

  • us-west-1
  • us-west-2
  • us-east-1
  • ap-southeast-1
  • ap-southeast-2

namespace

The namespace used for AWS CloudWatch metrics.

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BuildDimensions

func BuildDimensions(mTags map[string]string) []*cloudwatch.Dimension

Make a list of Dimensions by using a Point's tags. CloudWatch supports up to 10 dimensions per metric so we only keep up to the first 10 alphabetically. This always includes the "host" tag if it exists.

func BuildMetricDatum

func BuildMetricDatum(point telegraf.Metric) []*cloudwatch.MetricDatum

Make a MetricDatum for each field in a Point. Only fields with values that can be converted to float64 are supported. Non-supported fields are skipped.

func PartitionDatums

func PartitionDatums(size int, datums []*cloudwatch.MetricDatum) [][]*cloudwatch.MetricDatum

Partition the MetricDatums into smaller slices of a max size so that are under the limit for the AWS API calls.

Types

type CloudWatch

type CloudWatch struct {
	Region    string `toml:"region"`
	AccessKey string `toml:"access_key"`
	SecretKey string `toml:"secret_key"`
	RoleARN   string `toml:"role_arn"`
	Profile   string `toml:"profile"`
	Filename  string `toml:"shared_credential_file"`
	Token     string `toml:"token"`

	Namespace string `toml:"namespace"` // CloudWatch Metrics Namespace
	// contains filtered or unexported fields
}

func (*CloudWatch) Close

func (c *CloudWatch) Close() error

func (*CloudWatch) Connect

func (c *CloudWatch) Connect() error

func (*CloudWatch) Description

func (c *CloudWatch) Description() string

func (*CloudWatch) SampleConfig

func (c *CloudWatch) SampleConfig() string

func (*CloudWatch) Write

func (c *CloudWatch) Write(metrics []telegraf.Metric) error

func (*CloudWatch) WriteSinglePoint

func (c *CloudWatch) WriteSinglePoint(point telegraf.Metric) error

Write data for a single point. A point can have many fields and one field is equal to one MetricDatum. There is a limit on how many MetricDatums a request can have so we process one Point at a time.

func (*CloudWatch) WriteToCloudWatch

func (c *CloudWatch) WriteToCloudWatch(datums []*cloudwatch.MetricDatum) error

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