Class: Wire::DownCommand

Inherits:
UpDownCommand show all
Defined in:
lib/wire/commands/down_command.rb

Overview

DownCommand reads yaml, parses model elements and brings all defined model elements “down”, that is stopping and removing bridges, containers etc.

  • :target_dir

Instance Attribute Summary collapse

Attributes inherited from BaseCommand

#params, #project

Instance Method Summary collapse

Methods inherited from UpDownCommand

#default_handle_dhcp, #default_handle_hostip, get_networks_for_zone, #run_on_project, #run_on_project_zones

Methods inherited from BaseCommand

#check_user, #default_handle_resource, #dump_state, #ensure_hostip_netmask, #objects_in_zone, #outputs, #run, #state

Constructor Details

#initialize ⇒ DownCommand

initializes DownCommand, creates handler



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# File 'lib/wire/commands/down_command.rb', line 18

def initialize
  super
  @handler = DownCommandHandler.new
end

Instance Attribute Details

#handler ⇒ Object (readonly)

allow to get access to handler object



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# File 'lib/wire/commands/down_command.rb', line 15

def handler
  @handler
end

Instance Method Details

#run_on_zone(zone_name) ⇒ Object

run in given zone: returns:

  • bool: true if successful, false otherwise



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# File 'lib/wire/commands/down_command.rb', line 26

def run_on_zone(zone_name)
  b_result = true

  networks = @project.get_element('networks')

  # select appgroups in this zone and take them down first
  appgroups_in_zone = objects_in_zone('appgroups', zone_name)
  appgroups_in_zone.each do |appgroup_name, appgroup_data|
    $log.debug("Processing appgroup \'#{appgroup_name}\'")

    # process network attachments
    zone_networks = objects_in_zone('networks', zone_name)
    success = handler.handle_network_attachments(zone_name, zone_networks,
                                                 appgroup_name, appgroup_data,
                                                 @project.target_dir)

    b_result &= success

    # then take down containers
    success = handler.handle_appgroup(zone_name,
                                      appgroup_name, appgroup_data,
                                      @project.target_dir)
    b_result &= success

  end

  # select networks in current zone only
  networks_in_zone = UpDownCommand.get_networks_for_zone(networks, zone_name)
  networks_in_zone.each do |network_name, network_data|
    $log.debug("Bringing down network #{network_name}")

    # if we have dhcp, unconfigure dnsmasq
    b_result &= default_handle_dhcp(zone_name, network_name, network_data, @handler)

    # if we have a host ip on that bridge, take it down first
    b_result &= default_handle_hostip(network_name, network_data, @handler)

    # we should have a bridge with that name.
    success = @handler.handle_bridge(network_name)
    b_result &= success
  end
  b_result
end