[chef] Re: how could I use knife programmatically in a ruby script?

[Haim Ashkenazi < >]

Hi Bryan

Here's part of the code I use to launch knife bootstrap programatically. It's a mix of several parts so it won't work as is, but you can figure out the variables:

require "chef"

require 'chef/knife'

require 'chef/knife/bootstrap'

require "chef/knife/core/bootstrap_context"

require 'chef/knife/ssh'

require 'net/ssh'

require 'net/ssh/multi'

config_file = File.exists?(File.join(Dir.getwd, '.chef', 'knife.rb')) ?

              File.join(Dir.getwd, '.chef', 'knife.rb') :

              File.join(File.expand_path('~'), '.chef', 'knife.rb')

Chef::Config.from_file(config_file)

kb = Chef::Knife::Bootstrap.new

kb.name_args = target

Chef::Config[:environment] = options[:env]

kb.config[:ssh_user]       = "ubuntu"

kb.config[:run_list]       = options[:run_list]

kb.config[:use_sudo]       = true

kb.config[:chef_node_name] = name

kb.run

HTH

Haim

On Wed, Nov 23, 2011 at 7:14 PM, Bryan Berry < "> > wrote:

https://gist.github.com/1389228

Instead of shelling out to knife each time, could I just require 'Chef', initialize a few values, and work from there?

I might be able to figure it out by looking thru the chef source code, but I am lazy, so I thought I would ask first ;)

#!/usr/bin/env ruby                                                                                                                                           




servers = %x[ knife search node "name:*econ*" -i].split

servers = servers.slice(3, servers.length)




servers.each do |s|

  run_list_str = %[knife node show #{s} -r -f json]

  run_list = JSON.parse(s_run_list)

  if not run_list.include? "role[base]"

    %x[knife node run_list add #{s} "role[base]"]

  end

  if not run_list.include? "role[int0]" or not run_list.include? "role[ext0]"

    if s =~ /^ext.*$/

      %x[knife node run_list add #{s} "role[ext0]"]

    else

      %x[knife node run_list add #{s} "role[int0]"]

    end

  end

  if not run_list.include? "role[econ]"

    %x[knife node run_list add #{s} "role[econ]"]

  end

  %x[ knife ssh name:${s} "chef-client" -x root -i .chef/identity ]

end

--
Haim