Matthew Riddle mriddle

Upgrading like a baws

upgradinate_script.rb

  helper = UpgradinateFileHelper.new 'OLD NESS', 'NEW-NESS'
  helper.upgradinate_files [
      "/path/to/project/Gemfile"
 ]

Troubleshooting a chef client/recipe

Debugging Chef with Shef

When the chef client fails to run the recipe successfully during bootstrapping sudo chef-client to setup the connection with the chef-server. It will run with an empty run list. After its connected login to http://yourchefserver.com:4040/nodes/_NODE_NAME_, add the roles/recipes to the chef-client and run sudo chef-client from the client again.

When fixing a recipe and re-running make your modifications run knife cookbook upload -a #or cookbook name from your dev machine and run sudo chef-client from the chef client.

When there are issues registering the client with the chef-server check that the chef-client name isn't already registered on the server under clients or nodes or that the client has not already been registered (see below)

Using Knife

Basic configuration

Basic knife configuration

How to knife the chef

Uploading cookbooks
```
knife cookbook upload -a
```
Will upload all cookbooks

Updating cookbooks from source

knife cookbook site vendor cookbook_name # e.g. jenkins

Adding roles knife role from file path/filename.ext #e.g. roles/jenkins_node.json

	ORIGINAL_JENKINS_SERVER=
	ORIGINAL_SERVER_USER=

	NEW_JENKINS_SERVER=
	NEW_SERVER_USER=

	# ON THE ORIGINAL JENKINS SERVER
	ssh $ORIGINAL_SERVER_USER@$ORIGINAL_JENKINS_SERVER
	cd /var/lib/jenkins/
	for i in `ls jobs`; do echo "jobs/$i/config.xml";done > config.totar

	#cloud-config

	output:
	all: ">> /var/log/cloud-init.log"

	# the chef server's alias will be "chef", add a /etc/hosts entry for it
	bootcmd:
	- echo 127.0.0.1 chef >> /etc/hosts

	apt_sources:

	### Chef Knife config example
	# https://github.com/fnichol/chef-bootstrap-repo/blob/master/.chef/knife.rb
	###

	# Environment variables required:
	# CHEF_SERVER_URL - IP or url of your chef server
	# CHEF_USER - Initial user
	# AWS_ACCESS_KEY - AWS Access ID found here https://portal.aws.amazon.com/gp/aws/securityCredentials
	# AWS_SECRET_KEY - AWS Secrete key found in link above

	#!/usr/bin/env bash
	set -e
	set -x

	### How To Use
	#
	# sudo bash -c 'bash \
	# <(curl -sLB https://raw.github.com/gist/1209226/bootstrap_chef_server.sh) \
	# --hostname foo.example.com'
	#

	#!/bin/sh

	#
	# Too many crusty old git branches? Run this to find likely candidates for deletion
	# It lists all the remote branches and sorts them by age.
	#
	# Folks at pivotal shared this with me
	#
	#$ . show-remote-branch-info.sh
	# 2012-05-04 09:42:29 -0700 4 minutes ago Ted & Bill \torigin/hey_Bill

	for instance in `ec2-describe-instances \| grep ami-80dd59e9 \| grep '^INSTANCE' \| cut -f2 -s`; do
	ec2-create-tags $instance --tag "Name=Foobar"
	done

	## html_safe_intput.rb
	# encoding: UTF-8

	class HtmlSafeInput < Formtastic::Inputs::TextInput

	# Called dynamically, via form.input :foo, :as => :html_safe
	def to_html
	return super if object[method].blank?
	input_wrapping do
	label_html <<