Bruno Gomes brunowego

Subdomaining Localhost with Rails 5

I've been following this blog post on how to set up an api-only Rails 5 application. One of the sections talks about creating a subdomain for your api

Rails.application.routes.draw do
  constraints subdomain: "api" do
    scope module: "api" do

Styling native elements

Native HTML controls are a challenge to style. You can style any element in the web platform that uses Shadow DOM with a pseudo element ::pseudo-element or the /deep/ path selector.

video::webkit-media-controls-timeline {
  background-color: lime;
}

video /deep/ input[type=range] {

This is a tutorial on how to setup Kafka 0.9.0.0 on CentOS 7 with Kerberos. This configuration aims to set up all services on a single host called myserver.domain.com in the Kerberos realm DOMAIN.COM for testing purposes

Install JCE

This configuration requires that you have the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files installed. You can download these from the Java Downloads page under the Additional Resources section.

Install Kerberos KDC

Ashrithr made a very helpful tutorial on how to install Kerberos. Please use these instructions to set up Kerberos.

CRUD with Ember (+ Data)

Ember's official documentation describes a number of low-level APIs, but doesn't talk much about how to put them together. As a result, a simple task such as creating a simple CRUD application is not obvious to a newcomer.

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Install nginx

$ brew install nginx

Edit nginx.conf

$ vim /usr/local/etc/nginx/nginx.conf

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

	{
	"Version": "2012-10-17",
	"Statement": [
	{
	"Sid": "PublicReadGetObject",
	"Effect": "Allow",
	"Principal": {
	"AWS": "*"
	},
	"Action": "s3:GetObject",

	// addon/services/ajax.js
	// ensure custom ajax requests have the appropriate authorization headers when signed in
	import Ember from 'ember';
	import AjaxService from 'ember-ajax/services/ajax';

	const {
	computed,
	inject,
	get
	} = Ember;

	import Ember from 'ember';

	export default Ember.Controller.extend({
	appName: 'Ember Twiddle',
	options: [
	{ name: 'Apple', value: 'apple'},
	{ name: 'Banana', value: 'banana'},
	{ name: 'Other', value: 'other'}
	],
	selected: { name: 'Banana', value: 'banana'},