bruno-brant

// Small tool to obtain a field from a JSON file

// Read the JSON from STDIN

var buff = "";

if (process.argv.length <= 1) {
	console.error("Must inform the field to be extracted");
	process.exit(-1);
}

bruno-brant

const server = require('restify').createServer();
const cartRepository = require('../repositories');

server.get('/cart/:cart/total', (req, res) => {
	const cartId = Number(req.parameters.cart);
	const cart = cartRepository.getCartById(cartId);
	
	
	const total = cart.items.reduce((total, item) => total + item.price, 0);
	res.send(200, { total });

bruno-brant

Tooling in alpine builds

Pretty usual to have to diagnose docker containers based on alpine distros. But the image never comes with basic tools. How do we add it?

apk update						      # update the local registry
apk add busybox-extras			# install telnet and some other basic tools
apk add curl

bruno-brant

How to push docker images to openshift internal registry and create application from it

Assuming you have the OCP (openshift container platform) cluster ready and the user has image push permissions on a namespace (ex:- dev)

TL;DR

• Grab the Cluster IP Address of internal docker registry
• tag the local image to internal docker registry
• grab the auth token and login to inter docker registry

bruno-brant

> typeof Greeter
'function'
> greeter = new Greeter();
Greeter {}
> typeof greeter
'object'

bruno-brant

class Greeter {
	sayHello(name) {
		return "Hello, " + name;
	}
}