Opscode Chef API directly for setting override env attributes so newly bootstrapped nodes can pickup new artifacts for deployment.

gistfile1.rb

#!/opt/opscode/embedded/bin/ruby
#

#!/opt/opscode/embedded/bin/ruby
#

require 'chef/environment'
require 'chef/knife'
require 'chef/knife/cookbook_upload'
require 'chef'

require 'digest'
require 'fileutils'

Chef::Log.level = :info

class BootstrapError < StandardError; end

artifact_path = "/var/www/html/artifacts/#{ENV['JOB_NAME']}/#{ENV['BUILD_NUMBER']}/dbapp.war"
artifact_url = "http://chef.localdomain:10080/artifacts/#{ENV['JOB_NAME']}/#{ENV['BUILD_NUMBER']}/dbapp.war"

Dir.chdir("/var/www/html/artifacts/#{ENV['JOB_NAME']}/#{ENV['BUILD_NUMBER']}") do
  checksum = Digest::SHA256.file( artifact_path ).hexdigest
  Chef::Log.info( %Q(Checksum for #{artifact_path} is "#{checksum}") )

  Chef::Config.from_file( %Q(#{ENV['HOME']}/.chef/knife.rb) )

  Chef::Log.info( %Q(Artifact source location is "#{artifact_url}") )

# If we want distinct environments per build, uncomment
  ce = "#{ENV['JOB_NAME']}-#{ENV['BUILD_NUMBER']}"

  env_obj = Chef::Environment.new
  env_obj.name( ce )
  env_obj.override_attributes( { 'apps' => { 'dbapp' => {} } } )

  begin
    env_obj = Chef::Environment.load( ce )

  rescue Net::HTTPServerException => e
    raise e unless e.response.code == "404"
    env_obj.default_attributes['created_by'] ||= 'Jenkins'
    env_obj.default_attributes['created_date'] ||= Time.new.strftime("%Y_%m_%d-%H:%M:%S")
    env_obj.create
  end

  env_obj.override_attributes['apps']['dbapp']['source'] = artifact_url
  env_obj.override_attributes['apps']['dbapp']['checksum'] = checksum
  env_obj.save

end

Dir.chdir("/var/www/html/artifacts/#{ENV['JOB_NAME']}") do
  last_build_to_keep = ENV['BUILD_NUMBER'].to_i - 2

  Dir.foreach('.') do |b_dir|
#    Chef::Log.info( %Q(Last build to keep #{last_build_to_keep}, Remove "#{b_dir}"?) )
    if b_dir.to_i > 0 && b_dir.to_i < last_build_to_keep then
      Chef::Log.warn( %Q(Removing build dir "#{b_dir}") )

      FileUtils.rm_rf( b_dir )
    end

  end
end



__END__