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Create Root Certificate Authority and self-signed certificate for your Home Assistant. Compatible with Chrome browser > version 58 and macOS 10.15 Catalina

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

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#!/bin/bash

set -e

CURRENT_NAME="CurrentName"
CURRENT_OTP="current_name"

NEW_NAME="NewName"
NEW_OTP="new_name"

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# Currently (03.2019) it's not possible to change the Ruby 'minor' version (eg. 2.3 => 2.4) using the web console
# However, it's possible using the 'awscli' tool.

# List of available platforms: https://docs.aws.amazon.com/elasticbeanstalk/latest/platforms/platforms-supported.html#platforms-supported.ruby

brew install awscli # pip install awscli
aws elasticbeanstalk update-environment \
  --solution-stack-name "64bit Amazon Linux 2018.03 v2.9.1 running Ruby 2.6 (Puma)" \
  --environment-name "***-dev-web" --region "us-east-1" --profile "***-dev"

kumekay

defmodule JSON do
  import String

  def parse( content ) do
    case parse_content(content) do
      { value, "" } -> value
      { _, _ } -> raise "crap"
    end

  end

kumekay

Download large files in background with cookies for auth using wget

Sometimes it is necessary to dowload large files to remote server (for example datasets for Kaggle competitions), but download is available only for authenticated users. You can do it in backround task using cookies from your browser for authentication. This note generally copy wget manual https://www.gnu.org/software/wget/manual/wget.html

Cookies

First you have to create cookies.txt file with copy of all your cookies for required site If you use chrome, this extension is useful https://chrome.google.com/webstore/detail/cookiestxt/njabckikapfpffapmjgojcnbfjonfjfg

Example:

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gem 'pg'
group :development do
	gem 'ruby-debug'
end
gem 'rake', '~> 0.8.7'
gem 'devise'
gem 'oa-oauth', :require => 'omniauth/oauth'
gem 'omniauth'
gem 'haml'
gem 'dynamic_form'

kumekay

# Nginx+Unicorn best-practices congifuration guide. Now with SPDY!
# We use latest stable nginx with fresh **openssl**, **zlib** and **pcre** dependencies.
# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module
#
# Deployment structure
#
# SERVER:
#  /etc/init.d/nginx                             (1. nginx)
#  /home/app/public_html/app_production/current  (Capistrano directory)
#

kumekay

Deface::Override.new(:name => "remove billing address form",
                     :virtual_path => "spree/checkout/_address",
                     :remove => "#billing[data-hook]"
)

Deface::Override.new(:name => "remove use billing address checkbox",
                     :virtual_path => "spree/checkout/_address",
                     :remove => "[data-hook='use_billing']"
)

kumekay

#Deploy and rollback on Heroku in staging and production
task :deploy_staging => ['deploy:set_staging_app', 'deploy:push', 'deploy:restart', 'deploy:tag']
task :deploy_production => ['deploy:set_production_app', 'deploy:push', 'deploy:restart', 'deploy:tag']

namespace :deploy do
  PRODUCTION_APP = 'YOUR_PRODUCTION_APP_NAME_ON_HEROKU'
  STAGING_APP = 'YOUR_STAGING_APP_NAME_ON_HEROKU'

  task :staging_migrations => [:set_staging_app, :push, :off, :migrate, :restart, :on, :tag]
  task :staging_rollback => [:set_staging_app, :off, :push_previous, :restart, :on]

kumekay

--Bluetooth for VirtualBox
--delay 5

set question to display dialog "Manage Bluetooth for ... " buttons {"VirtualBox", "Cancel", "Mac OS"} default button "Cancel" cancel button "Cancel" with icon caution with title "Bluetooth" giving up after 30

set answer to button returned of question

if answer is equal to "VirtualBox" then
	-- delay 30
	try