promplot

Documentation

Overview

Package promplot provides tools for fetching, plotting and sharing Prometheus metrics data. This tools are used by the promplot binary but can also be independently use by other Go programs.

Index

• func Metrics(server, query string, queryTime time.Time, duration, step time.Duration) (model.Matrix, error)
• func Plot(metrics model.Matrix, title, format string) (io.WriterTo, error)
• func Slack(token, channel, title string, plot io.WriterTo) error

Functions

func Metrics

func Metrics(server, query string, queryTime time.Time, duration, step time.Duration) (model.Matrix, error)

Metrics fetches data from Prometheus.

func Plot

func Plot(metrics model.Matrix, title, format string) (io.WriterTo, error)

Plot creates a plot from metric data and saves it to a temporary file. It's the callers responsibility to remove the returned file when no longer needed.

func Slack

func Slack(token, channel, title string, plot io.WriterTo) error

Slack posts a file to a Slack channel.