Class: Y2Network::ProposalSettings

Inherits:
Object
  • Object
show all
Includes:
Yast::I18n, Yast::Logger
Defined in:
src/lib/y2network/proposal_settings.rb

Overview

Class that stores the proposal settings for network during installation.

Constant Summary collapse

DEFAULTS = 
[:ipv4_forward, :ipv6_forward].freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ProposalSettings

Constructor



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# File 'src/lib/y2network/proposal_settings.rb', line 48

def initialize
  Yast.import "Arch"
  Yast.import "ProductFeatures"

  Yast.import "Package"
  Yast.import "PackagesProposal"
  Yast.import "Lan"

  @selected_backend = autoinst_backend
  @virt_bridge_proposal = !autoinst_disabled_proposal?
  @defaults_applied = false
end

Instance Attribute Details

#defaults_applied ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'src/lib/y2network/proposal_settings.rb', line 43

def defaults_applied
  @defaults_applied
end

#ipv4_forward ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'src/lib/y2network/proposal_settings.rb', line 39

def ipv4_forward
  @ipv4_forward
end

#ipv6_forward ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'src/lib/y2network/proposal_settings.rb', line 41

def ipv6_forward
  @ipv6_forward
end

#selected_backend ⇒ Symbol

Returns network service to be used after the installation (:wicked, :network_manager or:none).

Returns:

  • (Symbol) —

    network service to be used after the installation (:wicked, :network_manager or:none)



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# File 'src/lib/y2network/proposal_settings.rb', line 35

def selected_backend
  @selected_backend
end

#virt_bridge_proposal ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'src/lib/y2network/proposal_settings.rb', line 37

def virt_bridge_proposal
  @virt_bridge_proposal
end

Class Method Details

.create_instance ⇒ Object

Enforce a new clean instance



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# File 'src/lib/y2network/proposal_settings.rb', line 198

def create_instance
  @instance = new
end

.instance ⇒ Object

Singleton instance



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# File 'src/lib/y2network/proposal_settings.rb', line 193

def instance
  @instance ||= create_instance
end

Instance Method Details

#apply_defaults ⇒ Object

Modifies the current network configuration according to the proposal. It does not touch the network configuration if the proposal settings were already applied



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# File 'src/lib/y2network/proposal_settings.rb', line 71

def apply_defaults
  return if defaults_applied
  return @defaults_applied = true if DEFAULTS.all? { |o| public_send(o).nil? }

  Yast::Lan.read_config(report: false) unless yast_config
  yast_config.routing.forward_ipv4 = ipv4_forward unless ipv4_forward.nil?
  yast_config.routing.forward_ipv6 = ipv6_forward unless ipv6_forward.nil?
  @defaults_applied = true
end

#current_backend ⇒ Object 



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# File 'src/lib/y2network/proposal_settings.rb', line 81

def current_backend
  selected_backend || default_backend
end

#default_backend ⇒ Object 



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# File 'src/lib/y2network/proposal_settings.rb', line 85

def default_backend
  default = use_network_manager? ? :network_manager : :wicked
  log.info "The default backend is: #{default}"
  default
end

#disable_network! ⇒ Object 



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# File 'src/lib/y2network/proposal_settings.rb', line 120

def disable_network!
  log.info "Disabling all network services"
  self.selected_backend = :none
end

#enable_network_manager! ⇒ Object

Adds the NetworkManager package to the Yast::PackagesProposal and sets NetworkManager as the backend to be used



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# File 'src/lib/y2network/proposal_settings.rb', line 102

def enable_network_manager!
  log.info "Enabling NetworkManager"
  self.selected_backend = :network_manager
  refresh_packages

  selected_backend
end

#enable_wicked! ⇒ Object

Add the wicked package to the Yast::PackagesProposal and sets wicked as the backend to be used



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# File 'src/lib/y2network/proposal_settings.rb', line 112

def enable_wicked!
  log.info "Enabling Wicked"
  self.selected_backend = :wicked
  refresh_packages

  selected_backend
end

#modify_defaults(settings = network_section) ⇒ Object

Modifies the proposal according to the given settings

Parameters:

  • settings (Hash) (defaults to: network_section) —

    network default settings to be loaded



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# File 'src/lib/y2network/proposal_settings.rb', line 64

def modify_defaults(settings = network_section)
  load_features(settings)
  @defaults_applied = false
end

#network_manager_available? ⇒ Boolean

Convenience method to obtain whether the NetworkManager package is available or not.

Returns:

  • (Boolean) —

    false if no package available, true otherwise



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# File 'src/lib/y2network/proposal_settings.rb', line 143

def network_manager_available?
  p = Y2Packager::Package.find("NetworkManager").first
  if p.nil?
    log.info("The NetworkManager package is not available")
    return false
  end
  log.info("The NetworkManager package status: #{p.status}")
  true
end

#network_service ⇒ Symbol

Propose the network service to be use at the end of the installation depending on the backend selected during the proposal and the packages installed

Returns:

  • (Symbol) —

    :network_manager, :wicked or :none



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# File 'src/lib/y2network/proposal_settings.rb', line 169

def network_service
  case current_backend
  when :network_manager
    return :network_manager if network_manager_installed?

    log.info("NetworkManager is the selected service but it is not installed")
    log.info("- using wicked")

    return :wicked
  when :wicked
    return :wicked if wicked_installed?

    return :none unless network_manager_installed?

    log.info("Wicked is the selected service but it is not installed - using Network Manager")

    return :network_manager
  end

  current_backend
end

#propose_bridge!(option) ⇒ Object 



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# File 'src/lib/y2network/proposal_settings.rb', line 95

def propose_bridge!(option)
  log.info("Bridge proposal set to: #{option.inspect}")
  @virt_bridge_proposal = option
end

#propose_bridge? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'src/lib/y2network/proposal_settings.rb', line 91

def propose_bridge?
  virtual_proposal_required? && virt_bridge_proposal
end

#refresh_packages ⇒ Object 



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# File 'src/lib/y2network/proposal_settings.rb', line 125

def refresh_packages
  case current_backend
  when :network_manager
    Yast::PackagesProposal.AddResolvables("network", :package, ["NetworkManager"])
    Yast::PackagesProposal.RemoveResolvables("network", :package, ["wicked"])
  when :wicked
    Yast::PackagesProposal.AddResolvables("network", :package, ["wicked"])
    Yast::PackagesProposal.RemoveResolvables("network", :package, ["NetworkManager"])
  when :none
    Yast::PackagesProposal.RemoveResolvables("network", :package, ["NetworkManager"])
    Yast::PackagesProposal.RemoveResolvables("network", :package, ["wicked"])
  end
end

#virtual_proposal_required? ⇒ Boolean

Decides if a proposal for virtualization host machine is required.

Returns:

  • (Boolean) 


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# File 'src/lib/y2network/proposal_settings.rb', line 154

def virtual_proposal_required?
  return false if Yast::Arch.s390

  return true if package_selected?("xen") && Yast::Arch.is_xen0
  return true if package_selected?("kvm")
  return true if package_selected?("qemu")

  false
end