Class: Chef::Knife::Cloud::ServerListCommand

Inherits:
ResourceListCommand show all
Defined in:
lib/chef/knife/cloud/server/list_command.rb

Instance Attribute Summary

Attributes inherited from Command

#custom_arguments, #service

Instance Method Summary collapse

Methods inherited from ResourceListCommand

#data_sort, #execute_command, #initialize, #is_resource_filtered?, #list

Methods inherited from Command

#run

Methods included from Helpers

#after_exec_command, #create_service_instance, #execute_command, #locate_config_value, #msg_pair, #pretty_key, #set_default_config, #validate!, #validate_params!

Constructor Details

This class inherits a constructor from Chef::Knife::Cloud::ResourceListCommand

Instance Method Details

#before_exec_command ⇒ Object 



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# File 'lib/chef/knife/cloud/server/list_command.rb', line 9

def before_exec_command
  if config[:chef_data]
    begin
      # Chef::Node.list(inflate = true) to use Solr search.
      @node_list = Chef::Node.list(true)
    rescue Errno::ECONNREFUSED => e
      error_message = "Connection error with Chef server. #{e}"
      ui.warn(error_message)
      raise CloudExceptions::ChefServerError, error_message
    end

    @chef_data_col_info = [
      { label: "Chef Node Name", key: "name" },
      { label: "Environment", key: "chef_environment" },
      { label: "FQDN", key: "fqdn" },
      { label: "Runlist", key: "run_list" },
      { label: "Tags", key: "tags" },
      { label: "Platform", key: "platform" },
    ]

    if config[:chef_node_attribute]
      @chef_data_col_info << { label: "#{config[:chef_node_attribute]}", key: "#{config[:chef_node_attribute]}" }
    end
    @columns_with_info.concat(@chef_data_col_info)
  end
end

#format_server_state(state) ⇒ Object 



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# File 'lib/chef/knife/cloud/server/list_command.rb', line 68

def format_server_state(state)
  state = state.to_s.downcase
  state_color =  case state
                 when "shutting-down", "terminated", "stopping", "stopped", "error", "shutoff"
                   :red
                 when "pending", "build", "paused", "suspended", "hard_reboot"
                   :yellow
                 else
                   :green
                 end
  ui.color(state, state_color)
end

#get_resource_col_val(server) ⇒ Object

Override from base to display chef node data along with server list display.



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# File 'lib/chef/knife/cloud/server/list_command.rb', line 37

def get_resource_col_val(server)
  list = []
  @columns_with_info.each do |col_info|
    if config[:chef_data] && @chef_data_col_info.include?(col_info)
      server_name = service.get_server_name(server)
      if @node_list.include?(server_name)
        node = @node_list[server_name]
        # Raise serverlisting error on invalid chef_node_attribute.
        if col_info[:key] == config[:chef_node_attribute] && ! node.attribute?(col_info[:key])
          error_message = "The Node does not have a #{col_info[:key]} attribute."
          ui.error(error_message)
          raise CloudExceptions::CloudAPIException, error_message
        else
          value = (col_info[:value_callback].nil? ? node.send(col_info[:key]).to_s : col_info[:value_callback].call(node.send(col_info[:key])))
        end
      else
        # Set chef data value for those server which is not part chef server.
        value = ""
      end
    else
      value = (col_info[:value_callback].nil? ? server.send(col_info[:key]).to_s : col_info[:value_callback].call(server.send(col_info[:key])))
    end
    list << value
  end
  list
end

#query_resource ⇒ Object 



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# File 'lib/chef/knife/cloud/server/list_command.rb', line 64

def query_resource
  @service.list_servers
end