kohigh

function memorySizeOf(obj) {
    var bytes = 0;

    function sizeOf(obj) {
        if(obj !== null && obj !== undefined) {
            switch(typeof obj) {
            case 'number':
                bytes += 8;
                break;
            case 'string':

kohigh

[Script]Renew Wildcard Certificates with Letsencrypt for domain hosted by Name.com

This tutorial can renew your ssl certificate:

• wildcard domain, e.g., *.example.com
• domain hosted by https://www.name.com, we use the API of name.com to add DNS TXT records with a shell script.

Wildcard certificates issued by letsencrypt.org need DNS TXT record to challenge, we can add TXT record manually when you apply the cert. If we want to automate it, we need to write a script that use the API of DNS provider to add TXT record. certbot has provided command argument --manual-auth-hook to pass the script.

1. Get a API token

Get your own api token provided by name.com: https://www.name.com/account/settings/api.

kohigh

Generate private key (.key)

# Key considerations for algorithm "RSA" ≥ 2048-bit
openssl genrsa -out server.key 2048
    
# Key considerations for algorithm "ECDSA" ≥ secp384r1
# List ECDSA the supported curves (openssl ecparam -list_curves)
openssl ecparam -genkey -name secp384r1 -out server.key

kohigh

Table of Contents

• References
• Other cheatsheets
• multiple gcloud config configurations
  • switch gcloud context with gcloud config
• auth
• info
• projects
• zones

kohigh

This is Japanese-English translation of my diary articles

• http://www.atdot.net/~ko1/diary/201502.html#d16
• http://www.atdot.net/~ko1/diary/201502.html#d17

These articles demonstration how to find out memory issues and tuning.

• How to estimate memory consumption
• How to use allocation_tracer gem to know object creation details
• How to optimize this typical issue in VM optimization

kohigh

module App
  module Initializer
    class << self
      include EM::Deferrable

      def load_app
        #log that app loaded all files and ready to start from this point
        succeed
      end
    end

kohigh

:texts:
  registration: "Hello, %{name}! We are glad you are with us now! Sincerely yours, SMService!"

kohigh

class SMS
  attr_reader :phone

  def self.configure(texts:, **args)
    const_set('TEXTS', texts)
  end

  def initialize(type:, phone:, **attrs)
    @type = type

kohigh

development:
  :url: 'https://api.twilio.com/2010-04-01/Accounts/your_account_sid/Messages.json'
  :auth_username: username
  :auth_password: password
  :phone_from: +1111111111

staging:
  :url: 'https://api.twilio.com/2010-04-01/Accounts/your_account_sid/Messages.json'
  :auth_username: username
  :auth_password: password

kohigh

                _   _            _      ____             _    _ 
               | | | | __ _  ___| | __ | __ )  __ _  ___| | _| |
               | |_| |/ _` |/ __| |/ / |  _ \ / _` |/ __| |/ / |
               |  _  | (_| | (__|   <  | |_) | (_| | (__|   <|_|
               |_| |_|\__,_|\___|_|\_\ |____/ \__,_|\___|_|\_(_)
                                                 
     A DIY Guide for those without the patience to wait for whistleblowers


--[ 1 ]-- Introduction