Class: KnifeFlip::RoleFlip

Inherits:
Chef::Knife
  • Object
show all
Defined in:
lib/chef/knife/roleflip.rb

Instance Method Summary collapse

Instance Method Details

#run ⇒ Object 



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# File 'lib/chef/knife/roleflip.rb', line 19

def run
  unless @role = name_args[0]
    ui.error "You need to specify a role to search against"
    exit 1
  end

  unless @new_env = name_args[1]
    ui.error "You need to specify an environment to move nodes to"
    exit 1
  end
  
  puts "Checking for a role called #{@role} to flip nodes from..."

  searcher = Chef::Search::Query.new
  result = searcher.search(:role, "name:#{@role}")
  
  knife_search = Chef::Knife::Search.new
  env = result.first.first
  if env.nil?
    puts "Could not find an role named #{@role}. Can't update nodes which run a non-existant role!"
    exit 1
  else
    puts "Found!\n"
  end
  
    
  puts "Checking for an environment called #{@new_env} to update to..."

  searcher = Chef::Search::Query.new
  result = searcher.search(:environment, "name:#{@new_env}")
  
  knife_search = Chef::Knife::Search.new
  env = result.first.first
  if env.nil?
    puts "Could not find an environment named #{@new_env}. Please create it before trying to put nodes in it!"
    exit 1
  else
    puts "Found!\n"
  end

  #puts "Setting environment to #{@environment}"
  #node.chef_environment(@environment)
  #node.save
  
  q_nodes = Chef::Search::Query.new
  node_query = "role:#{@role}"
  query_nodes = URI.escape(node_query,
                     Regexp.new("[^#{URI::PATTERN::UNRESERVED}]"))

  result_items = []
  result_count = 0

  #ui.msg("\nFinding all nodes in environment #{@old_env} and moving them to environment #{@new_env}...\n")
  
  begin
    q_nodes.search('node', query_nodes) do |node_item|
      
      node_item.chef_environment(@new_env)
      node_item.save
      formatted_item_node = format_for_display(node_item)
      if formatted_item_node.respond_to?(:has_key?) && !formatted_item_node.has_key?('id')
        formatted_item_node.normal['id'] = node_item.has_key?('id') ? node_item['id'] : node_item.name
      end
      ui.msg("Moving #{formatted_item_node.name} to environment #{@new_env}...")
      result_items << formatted_item_node
      result_count += 1
    end
  rescue Net::HTTPServerException => e
    msg = Chef::JSONCompat.from_json(e.response.body)["error"].first
    ui.error("knife role flip failed: #{msg}")
    exit 1
  end

  if ui.interchange?
    output({:results => result_count, :rows => result_items})
  else
    ui.msg "#{result_count} Nodes updated"
  end

end