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Last active October 1, 2021 21:05
Verify if host will have Let's encrypt certificate validation problems

Running the script inside a docker container

If you wish to test whether your docker container won't have issues when the old Root certificate expires, you can run the script inside the container itself.

In order to do this, follow these steps:

  1. Download the script from the gist
  2. Bring up your application container as you usually do - with docker-compose up, docker run, via VS Code etc
  3. Run docker ps, and look for any application containers that are up; the NAMES column is the easiest for that
  4. From the same folder where you've downloaded the script, run docker exec -i /bin/sh <; this will run the script inside the container
import Ember from 'ember';
export default Ember.Controller.extend({
appName: 'Ember Twiddle',
store: Ember.inject.service(),
actions: {
createClosing() {
const closing = this.get('store').createRecord('closing');
this.set('closing', closing);

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I hereby claim:

  • I am renato-zannon on github.
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To claim this, I am signing this object:

renato-zannon / results
Created June 5, 2014 22:11
Rust: Semaphores vs channels
running 2 tests
test with_channels ... bench: 876410 ns/iter (+/- 655463)
test with_semaphores ... bench: 513476 ns/iter (+/- 711503)
test result: ok. 0 passed; 0 failed; 0 ignored; 2 measured
renato-zannon / patch.rb
Created March 20, 2014 19:21
Fix rails 2.3 filter_parameter_logging for ruby 2.x
# The filter_parameter_logging method, used to filter request parameters
# (such as passwords) from the log, defines a protected method called
# filter_parameter when called. Its existence is later tested using
# respond_to?, without the include_private parameter. Due to the respond_to?
# behavior change, the method existence is never detected, and parameter
# filtering stops working.
require 'action_controller'
module ParameterFilterPatch
def respond_to?(method, include_private = false)
require 'nokogiri'
require 'rspec'
describe "nth-child" do
let(:doc) do
<p id="first"></p>
<p id="second"></p>
# Depends on gems eventmachine, em-http-request,
# and em-resolv-replace (for # async DNS)
require 'eventmachine'
require 'em-http'
require 'fiber'
require 'em-resolv-replace'
def make_request_to(url)
connection =
renato-zannon / module.rb
Created September 4, 2012 04:07
Subclass module + use module_eval to define methods
class AttributeAccessor < Module
def initialize(name)
@name = name
module_eval { define_accessors }
def define_accessors
ivar = "@#{@name}"
renato-zannon / user.rb
Created June 9, 2012 05:33
Strategy pattern to follow users
class User <, :private)
alias_method :private?, :private
def follow
def follow_strategy
renato-zannon / xmonad-unity.desktop
Created January 13, 2012 13:18
Unity Panel + XMonad config
# /usr/share/xsessions/xmonad-unity.desktop
[Desktop Entry]
Exec=gnome-session --session=xmonad_unity