Libkermit

When green is all there is to be
It could make you wonder why
But why wonder why wonder
I am green, and it'll do fine
It's beautiful,
and I think it's what I want to be.
-- Kermit the Frog

When Docker meets with integration/acceptance tests to make you see everything in green. Libkermit is a Go(lang) library that aims to ease the writing of integration tests (any non unit tests actually) with the helps of Docker and it's ecosystem (mainly libcompose).

The goals are :

• Easy docker manipulation, from managing a simple container to boot up a whole stack.
  • create, delete, pause, … containers
  • check for a certain state containers (inspect them)
  • support compose files to allow starting a whole stack
• Testing suite and functions, in a simple fashion.
• Works seamlessly with the Go(lang) testing framework.
• Try to not force any testing framework but also tries to integrate with them (go-check, testify, …).

Note: This is experimental and not even implemented yet. You are on your own right now

Package docker

This package holds functions and structs to ease docker uses.

package yours

import (
    "testing"

    "github.com/libkermit/docker"
)

func TestItMyFriend(t *testing.T) {
    project, err := docker.NewProjectFromEnv()
    if err != nil {
        t.Fatal(err)
    }
    container, err := project.Start("vdemeester/myawesomeimage")
    if err != nil {
        t.Fatal(err)
    }

    // Do your stuff
    // […]

    // Clean the containers managed by libkermit
    err = project.Clean()
    if err != nil {
        t.Fatal(err)
    }
}

Package docker/testing

This package map the docker package but takes a *testing.T struct on all methods. The idea is to write even less. Let's write the same example as above.

package yours

import (
    "testing"

    docker "github.com/libkermit/docker/testing"
)

func TestItMyFriend(t *testing.T) {
    project := docker.NewProjectFromEnv(t)
    container := project.Start(t, "vdemeester/myawesomeimage")

    // Do your stuff
    // […]

    // Clean the containers managed by libkermit
    project.Clean(t)
}

Other packages to come

• suite : functions and structs to setup tests suites.