gocounter-scratch-atomicapp

###Overview

This is an atomicapp based on Nulecule specification. This is a standalone Golang application based on this example. Every time you access the web page, a message is displayed which indicates the number of times the web page was accessed in past one minute.

Motivation of this example is to showcase a quick example running using atomicapp. The Docker image dharmit/gocounter is under 7 MB in size!

###Prerequisites

You need to install atomicapp from its git repo before being able to check the app.

###Usage

####Option 1 - Interactive

Run the image with below command. It'll use kubernetes as the default provider. It will prompt for the parameters in Nulecule file that do not have default values.

$ [sudo] atomicapp run dharmit/gocounterapp

####Option 2 - Unattended

Create a new directory and in that, create a file called answers.conf with below contents:

[gocounter]
goImage = dharmit/gocounter:master
NODE_PORT = 32000
[general]
namespace = default
provider = docker

Now, from the directory containting answers.conf file, run the application:

$ [sudo] atomicapp run -a answers.conf dharmit/gocounterapp

####Option 3 - Install and Run

You can download the application, review the Nulecule file and edit answerfile before running the application.

1. Download the app using atomicapp install:

    [sudo] atomicapp install dharmit/gocounterapp
   

2. cd into the directory where the files were loaded by above command. Rename answers.conf.sample:

    mv answers.conf.sample answers.conf
   

3. Edit answers.conf, review the files if desired and run:

    [sudo] atomicapp run -a answers.conf dharmit/gocounterapp
   

###Check the app

To check the app, open http://localhost:32000 in the web browser. If you have chosen some other value for the environment variable NODE_PORT, use that port instead of 32000.