graphitebridge

package
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Published: Jan 4, 2024 License: Apache-2.0 Imports: 15 Imported by: 0

Documentation

Overview

Package graphitebridge provides a bridge to push Prometheus metrics to a Graphite server.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Bridge

type Bridge struct {
	// contains filtered or unexported fields
}

Bridge pushes metrics to the configured Graphite server.

func NewBridge

func NewBridge(c *Config) (*Bridge, error)

NewBridge returns a pointer to a new Bridge struct.

func (*Bridge) Push

func (b *Bridge) Push() error

Push pushes Prometheus metrics to the configured Graphite server.

func (*Bridge) Run

func (b *Bridge) Run(ctx context.Context)

Run starts the event loop that pushes Prometheus metrics to Graphite at the configured interval.

type Config

type Config struct {
	// The url to push data to. Required.
	URL string

	// The prefix for the pushed Graphite metrics. Defaults to empty string.
	Prefix string

	// The interval to use for pushing data to Graphite. Defaults to 15 seconds.
	Interval time.Duration

	// The timeout for pushing metrics to Graphite. Defaults to 15 seconds.
	Timeout time.Duration

	// The Gatherer to use for metrics. Defaults to prometheus.DefaultGatherer.
	Gatherer prometheus.Gatherer

	// The logger that messages are written to. Defaults to no logging.
	Logger Logger

	// ErrorHandling defines how errors are handled. Note that errors are
	// logged regardless of the configured ErrorHandling provided Logger
	// is not nil.
	ErrorHandling HandlerErrorHandling

	// Graphite does not support ever increasing counter the same way
	// prometheus does. Rollups and ingestion might cannot handle ever
	// increasing counters. This option allows enabled the caller to
	// calculate the delta by saving the last sent counter in memory
	// and subtraction it from the collected value before sending.
	CountersAsDelta bool
}

Config defines the Graphite bridge config.

type HandlerErrorHandling

type HandlerErrorHandling int

HandlerErrorHandling defines how a Handler serving metrics will handle errors.

const (
	// Ignore errors and try to push as many metrics to Graphite as possible.
	ContinueOnError HandlerErrorHandling = iota

	// Abort the push to Graphite upon the first error encountered.
	AbortOnError
)

These constants cause handlers serving metrics to behave as described if errors are encountered.

type Logger

type Logger interface {
	Println(v ...interface{})
}

Logger is the minimal interface Bridge needs for logging. Note that log.Logger from the standard library implements this interface, and it is easy to implement by custom loggers, if they don't do so already anyway.

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