cAdvisor-API

Metrics of docker swarm by using google cAdvisor API

To find CPU usage % the following formula is used

Usage % = (Used CPU Time (in nanoseconds) for the interval) /(interval (in nano secs) * num cores)

Install

System should have go installed.

To use as a go package, install this package by -

go get github.com/swapnil96/cAdvisor-API

This will make the package available for use.Then import this package by -

import "github.com/swapnil96/cAdvisor-API/utils"

Then you are ready to go !!

Structure of the Repo

UTILS folder has the scripts for polling metrics

host.go gives the metrics of the host.

1. Host_spec function gives the specifications of the host.
2. Host_stat function gives the statistics of the host in a human readable form.
3. Host_cpu function gives cpu usage statistics in machine readable format.
4. Host_memory function gives memory usage statistics in machine readable format.

docker.go gives the metrics of all docker containers.

1. Docker_stat function gives the statistics of all docker containers in a human readable form.
2. Docker_cpu function gives cpu usage of all docker containers in machine readable format.
3. Dost_memory function gives memory usage of all docker containers in machine readable format.

swarm.go gives the metrics for all the nodes in the swarm.

1. Swarm function gives the statistics of all the nodes that are in the swarm.

Usage

main.go has sample way how to use the scripts in the utils folder

All the metrics will be stored inside the stats folder.