adamrdavid

Database do's and don'ts

This is a generic guidline that applies mostly to Ruby on Rails and Postgres, but can be usefull for running any database migrations in CI.

Table of contents

• Table of contents
• Zero downtime migrations
  • Resources
• Basic tenets

danrigsby

packer build packer.json 2>&1 | sudo tee output.txt
tail -2 output.txt | head -2 | awk 'match($0, /ami-.*/) { print substr($0, RSTART, RLENGTH) }' > sudo ami.txt

remy

if (typeof window.localStorage == 'undefined' || typeof window.sessionStorage == 'undefined') (function () {

var Storage = function (type) {
  function createCookie(name, value, days) {
    var date, expires;

    if (days) {
      date = new Date();
      date.setTime(date.getTime()+(days*24*60*60*1000));
      expires = "; expires="+date.toGMTString();

chriseppstein

@mixin ie6 { * html & { @content } }

#logo {
  background-image: url("/images/logo.png");
  @include ie6 { background-image: url("/images/logo.gif"); }
}

d11wtq

docker run -rm -t -i -v $(dirname $SSH_AUTH_SOCK) -e SSH_AUTH_SOCK=$SSH_AUTH_SOCK ubuntu /bin/bash

everesio

provider "aws" {
  region = "us-east-1"
}

data "aws_caller_identity" "current" {}

data "aws_vpc" "vpc" {
  filter {
    name = "tag:Name"
    values = [

zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')