Sébastien Saunier ssaunier

Fixing Webpacker 3.3.0 + Rails 5.1.5

Heroku hosting trouble

Heroku may not detect a correct buildpack for your JS dependencies, then you have to set it manually:

heroku buildpacks:add heroku/nodejs -i 1
heroku buildpacks:add --index 2 https://github.com/heroku/heroku-buildpack-ruby

This tutorial moved to the new Career Playbook!

vérifier le niveau des piles du micro HF émétteur + récepteur
fixer le recepteur sur le shoe mount de la caméra
brancher le cable dans l'entrée mini-jack de la caméra
mettre la camera sur pied en glissant la semelle dans la tête fluide
brancher la caméra sur secteur
allumer la camera en appuyant sur le bouton power attention il peut parfois rester coincé
vérifier qu'il n'y a pas de faux contact, un petit éclair doit apparaitre sur le voyant de charge
vérifier les settings sur l'écran: 1080p25 ProRes Proxy F2.8 ISO 800
si besoin l'image est trop sombre/claire modifier l'ISO dans MENU>SETTINGS>CAMERA SETTINGS>ISO
si besoin l'image est trop chaude/froide modifier la balance des blancs dans MENU>SETTINGS>CAMERA SETTINGS>WHITE BALANCE

De-'Async Inject' Universal Analytics

This gist applies the theory from Ilya Grigorik's Script-injected "async scripts" considered harmful on the default Universal Analytics snippet. TLDR place this above the CSS in the <head> of your document

<!-- Google Analytics Part 1: Creates window.ga, sets account, and queues pageview-->
<script>
  !function(n,t){n.GoogleAnalyticsObject=t,n[t]=n[t]||function(){(n[t].q=n[t].q||[]).push(arguments)},n[t].l=1*new Date}(window,"ga");
  ga('create', 'UA-XXXX-Y', 'auto'); // REPLACE UA-XXXX-Y w/ YOUR ACCOUNT
 ga('send', 'pageview');

Startup Noob Guide (bit.ly/startupnoob)

If you want to create a startup, and you've never done that before, you should consult the resources that are relevant to your situation.

[FR] Si vous comprenez le français, je vous invite à regarder la vidéo de mon pote Shubham qui résume assez bien le plus gros des conseils de cette page, en 8 minutes: Vous avez une idée de startup ?.

[FR] ...et si vous voulez comprendre tout ce contenu de manière plus efficace et ludique, inscrivez-vous sur mon MOOC "Startup Tour: créez votre startup en 3h" (gratuit).

This is a kick-off roadmap for the lead-developer, in charge of setup / deployment / collaboration.

Rails new

Create the project locally and on Github

$ rails new YOUR_APP_NAME -T --database=postgresql
$ cd YOUR_APP_NAME
$ git init

#cargo, docker hub without docker, how to

18 Jan 2015

###Background

I have been using linux containers for almost 2 years now. It started during an internship at Applidget, a startup in Paris. My job was to integrate linux containers technology in their private PaaS. At this time, there where no doubt, the technology to use was LXC. One week or so after I started digging into LXC, one of my co-worker talked to me about this new thing called docker. He told me "isn't it what you are supposed to do during your internship ?". And it was kind of it.

At this time I already highlighted a big challenge of containers in PaaS: creation time. Waiting for bundle install to complete is already long enough to have to wait for another 40 secondes to create a container :). Docker landed just in time !

Buy a domain and map a CNAME to your Heroku app. Use www.example.com, not example.com
Register to Uptime Robot and set up a monitor on your website (keeps dyno alive!)
Use Unicorn as the Webserver
Add the Heroku add-on PG Backups with automatic backups and monthly retention
Install NewRelic (provision the add-on and skip to the Ruby section)
Add SPF and DKIM records to your Mandrill account if you send email with @yourdomain.com
If your website uses Devise, buy a SSL certificate and set it up to get a https:// URL. Otherwise passwords are in cl

	#!/usr/bin/env bash

	# Abort sign off on any error
	set -e

	# Start the benchmark timer
	SECONDS=0

	# Repository introspection
	OWNER=$(gh repo view --json owner --jq .owner.login)

	namespace :db do
	desc "Backs up heroku database and restores it locally."
	task import_from_heroku: [ :environment, :create ] do
	HEROKU_APP_NAME = nil # Change this if app name is not picked up by `heroku` git remote.

	c = Rails.configuration.database_configuration[Rails.env]
	heroku_app_flag = HEROKU_APP_NAME ? " --app #{HEROKU_APP_NAME}" : nil
	Bundler.with_clean_env do
	puts "[1/4] Capturing backup on Heroku"
	`heroku pg:backups capture DATABASE_URL#{heroku_app_flag}`