liku

A Capistrano Rails Guide

by Jonathan Rochkind, http://bibwild.wordpress.com

why cap?

Capistrano automates pushing out a new version of your application to a deployment location.

I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".

liku

app = node[:rails][:app]

rails_base app[:name] do
  ruby_ver app[:ruby_ver]
  gemset app[:gemset]
end

%w{config log pids cached-copy bundle system}.each do |dir|
  directory "#{app[:app_root]}/shared/#{dir}" do
    owner app[:deploy_user]

liku

#!/bin/sh
#
# Originally part of vpnc source code:
# © 2005-2012 Maurice Massar, Jörg Mayer, Antonio Borneo et al.
# © 2009-2012 David Woodhouse <dwmw2@infradead.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

liku

#!/bin/bash
 
#Force file syncronization and lock writes
mongo admin --eval "printjson(db.fsyncLock())"
 
MONGODUMP_PATH="/usr/bin/mongodump"
MONGO_HOST="prod.example.com"
MONGO_PORT="27017"
MONGO_DATABASE="dbname"
 

liku

include Opscode::Aws::Ec2


# Auto locates and attached ebs devices based on the data bag they reside in. The following test cases need to be performed.  Currently limited to 15 drives for the raid due to the drive mount point seek iteration logic.  This could be fixed to include more than 15 mount points.
# Create multiple resources with new node: PASS
#
# Re-attach multiple resources after a reboot: PASS
#
# Create resources across 2 runs.  First run creates first raid set, second run re-attaches then creates: PASS
# 

liku

include Opscode::Aws::Ec2


#Auto locates and attached ebs devices based on the data bag they reside in. The following test cases need to be performed
# Create multiple resources with new node: PASS
#
# Re-attach multiple resources after a reboot: PASS
#
# Create resources across 2 runs.  First run creates first raid set, second run re-attaches then creates: PASS
# 

liku

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

liku

#!./bin/knife exec

# A knife exec script to change chef node's name, preserving all the attributes.
#
# Usage: knife exec rename-node.rb old-name new-name
#
# Script retrieves the Node object, changes its 'name' attribute,
# creates new Node object with updated name and rest of attributes
# untouched. Then it deletes old Node and Client objects from
# database, and logs into the server to update it:

liku

#!/usr/bin/env knife exec

# A knife exec script to change chef node's name, preserving all the attributes.
#
# Usage: knife exec rename-node.rb old-name new-name
#
# Script retrieves the Node object, changes its 'name' attribute,
# creates new Node object with updated name and rest of attributes
# untouched. Then it deletes old Node and Client objects from
# database, and logs into the server to update it:

liku

# RSpec 2.0 syntax Cheet Sheet by http://ApproachE.com

# defining spec within a module will automatically pick Player::MovieList as a 'subject' (see below)
module Player
	describe MovieList, "with optional description" do
		  
	  it "is pending example, so that you can write ones quickly"
	  
	  it "is already working example that we want to suspend from failing temporarily" do
		pending("working on another feature that temporarily breaks this one")