ranjib

Thanks for wanting to contribute to Chef! There are many ways to get involved in various areas of the project, tools, and documentation. This document will help you get started; the links below point to how-to-contribute information for each project.

An Overview of the Main Projects under the Chef Umbrella

The Chef Client

• Ohai
• Chef Client

The Chef Development Kit

ranjib

 let(:runner) do                                                                                                             
    memoized_runner('pd-gocd::agent') do |node|                                                                               
      #..... 
    end 
  end

ranjib

# Using chef to create files with a time stamp or similar - in this case,
# the serial number in a DNS zone file - presents a problem, because the
# time stamp interferes with with idempotency. Here is a trick for solving
# this (thanks to Noah Kantrowitz for his input and suggestion!)

# The trick is to use the same template twice, once with a constant serial
# number to check for idempotency, and a second time with the "real" serial
# number. The actual serial number can be stored in an attribute.

# Initial serial number for the zone

ranjib

execute 'apt-get source redis-server=2:2.8.19-3' do
  cwd '/opt/foo'
  creares '/opt/foo/redis-2.8.19'
end

ranjib

config(:chef, node_name: 'foo', client_key: '/path/to/client.pem', chef_server_url: 'https://foo.bar.com')
config(:ssh, user: 'foo', password: 'bar')
[
  'sudo apt-get remove chef --purge -y',
  'sudo rm -rf /opt/chef',
  'sudo rm -rf /etc/chef/client.d',
  'wget -c https://opscode-omnibus-packages.s3.amazonaws.com/ubuntu/13.04/x86_64/chef-xxx.deb',
  'sudo dpkg -i chef-xxx.deb',
  'sudo env -i /opt/chef/bin/chef-client',
  'rm chef-xxx.deb'

ranjib

 tweets = Twitter.search("#devops", 
                :count => 100,
                :result_type => "recent").results

ranjib

#!/bin/bash

# As the "bufferbloat" folks have recently re-discovered and/or more widely
# publicized, congestion avoidance algorithms (such as those found in TCP) do
# a great job of allowing network endpoints to negotiate transfer rates that
# maximize a link's bandwidth usage without unduly penalizing any particular
# stream. This allows bulk transfer streams to use the maximum available
# bandwidth without affecting the latency of non-bulk (e.g. interactive)
# streams.

ranjib

# cookbooks/nokogiri/recipes/default.rb

stage "install_deps" do
  run_list "recipe[nokogiri::deps]"
end

stage "install_gem" do
  run_list "recipe[nokogiri::gem]"
end

ranjib

ruby_block "some command" do
  block do
    c = Mixlib::Shelout.new("ls -l")
    c.run_command
    c.stdout # do something exciting with c.stdout
  end
end

ranjib

 [berkshefl] $ berks upload
Using apache2 (1.6.0)
Using java (1.10.0)
Using yum (2.1.0)
Using s3cmd (0.0.0) at path: 'site-cookbooks/s3cmd'
Using as_app (0.0.3) at path: 'site-cookbooks/as_app'
Using rabbitmq (0.0.0) at path: 'site-cookbooks/rabbitmq'
Using solr (0.0.0) at path: 'site-cookbooks/solr'
Using windows (1.8.4)
Using chef_handler (1.1.4)