lincank

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".

	#!/bin/bash
	###########################################
	# chkconfig: 2345 98 02
	#
	# description: PM2 next gen process manager for Node.js
	# processname: ghost1
	#
	### BEGIN INIT INFO
	# Provides: ghost1
	# Required-Start:

	rm -r ~/Library/Caches/storeinappd
	rm -r ~/Library/Caches/storedownloadd
	rm -r ~/Library/Caches/storeassetd
	rm -r ~/Library/Caches/storeaccountd
	rm -r $TMPDIR../C/com.apple.appstore
	rm -r /private/var/folders///*/com.apple.appstore
	rm -r ~/Library/Caches/com.apple.appstore
	rm -r ~/Library/Saved\ Application\ State/com.apple.appstore.savedState
	rm ~/Library/Preferences/com.apple.appstore.plist

	#!/bin/bash
	export PATH=$PATH:/usr/bin:/usr/local/bin

	mysqldump -uname -ppasswd db_name > /data/backup/backup_`date +%F`.sql


	# Remove backups older than 15 days
	find /data/backup/ -maxdepth 1 -mtime +15 -delete

	# backup to remote server

	#!/bin/bash
	HOST='web_host'
	USER='foo'
	PASS='pwd'
	TARGETFOLDER='www'
	SOURCEFOLDER='/path/to/something'

	lftp -f "
	open $HOST
	user $USER $PASS

	# encoding: utf-8

	class User < ActiveRecord::Base

	# roles for authorization for "cancan" gem, each user can have more than one roles,
	# the abilities that this user own, are the union of all roles it has
	# ability definition located in models/ability.rb
	def roles
	roles = ["guest"]
	if self.new_record?

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console

	rpm -Uvh http://ftp.jaist.ac.jp/pub/Linux/Fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm
	yum install mosh –enablerepo=epel

	# JDK required, install jdk on mac with:
	# R CMD javareconf JAVA_CPPFLAGS=-I/System/Library/Frameworks/JavaVM.framework/Headers
	require(xlsx)
	#file <- system.file("/tmp/", "cobbdoug.xlsx", package = "xlsx")
	wb <- loadWorkbook("/tmp/cobbdoug.xlsx")
	sheets <- getSheets(wb) # get all sheets
	sheet <- sheets[['cobbdoug.xls']] # get sheet with name "cobbdoug.xls"
	rows <- getRows(sheet)

	cells <- getCells(rows, colIndex=2)

	#Steps to install RVM + Ruby 1.9.3 + Rails + nginx + Passenger on CentOS (tested on v5.5)

	# Todo get up to date repo's

	# Install git and curl, if not already installed
	sudo yum install git
	sudo yum install curl-devel

	# Create the rvm group and add any users who will be using rvm to the group
	sudo su -