Class: Staypuft::Deployment::NovaService

Inherits:
AbstractParamScope show all
Defined in:
app/models/staypuft/deployment/nova_service.rb

Defined Under Namespace

Modules: NetworkManager, PrivateFixedRange, PublicFloatingRange, VlanRange Classes: Jail, NetworkRangesValidator, NovaVlanRangeValidator

Constant Summary collapse

VLAN_HELP = 
Deployment::NeutronService::VLAN_HELP

Instance Attribute Summary

Attributes inherited from AbstractParamScope

#deployment

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from AbstractParamScope

#attributes=, #hostgroup, #initialize, #marked_for_destruction?

Methods included from AttributeParamStorage

#param_attr, #param_attr_array, #param_scope

Constructor Details

This class inherits a constructor from Staypuft::Deployment::AbstractParamScope

Class Method Details

.param_scope ⇒ Object 



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# File 'app/models/staypuft/deployment/nova_service.rb', line 3

def self.param_scope
  'nova'
end

Instance Method Details

#active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/staypuft/deployment/nova_service.rb', line 97

def active?
  deployment.networking == Deployment::Networking::NOVA
end

#fixed_range_size ⇒ Object 



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# File 'app/models/staypuft/deployment/nova_service.rb', line 127

def fixed_range_size
  fixed_range_str = private_fixed_range
  if fixed_range_str.empty?
    0
  else
    fixed_range = IPAddr.new(fixed_range_str).to_range
    fixed_range.last.to_i - fixed_range.first.to_i + 1
  end
end

#min_fixed_range_cidr ⇒ Object

for the current num_networks value (1 for non-vlan; based on the vlan range for VLAN, this calculates the smallest fixed range network cidr assuming the smallest useful network size of 4 (2 hosts+network address+broadcast address)



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# File 'app/models/staypuft/deployment/nova_service.rb', line 154

def min_fixed_range_cidr
  "/#{32 - Math.log(4*num_networks,2).ceil}"
end

#network_overrides ⇒ Object 



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# File 'app/models/staypuft/deployment/nova_service.rb', line 105

def network_overrides
  { 'force_dhcp_release' => false }.tap do |h|
    h.update 'vlan_start' => vlan_start if self.vlan_manager?
  end.to_yaml
end

#network_size ⇒ Object

network size is equal to the number of IP addresses in the fixed range, divided by the number of networks, rounded down to the next power of two (or zero if <1)



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# File 'app/models/staypuft/deployment/nova_service.rb', line 140

def network_size
  unrounded_size = fixed_range_size / num_networks
  if unrounded_size < 1
    0
  else
    2**Math.log(unrounded_size,2).floor
  end
end

#num_networks ⇒ Object 



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# File 'app/models/staypuft/deployment/nova_service.rb', line 119

def num_networks
  if self.vlan_manager?
    vlan_range_arr[1].to_i - vlan_range_arr[0].to_i + 1
  else
    1
  end
end

#param_hash ⇒ Object 



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# File 'app/models/staypuft/deployment/nova_service.rb', line 158

def param_hash
  { 'network_manager'          => network_manager,
    'vlan_range'               => vlan_range,
    'public_floating_range'    => public_floating_range,
    'private_fixed_range'      => private_fixed_range }
end

#set_defaults ⇒ Object 



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# File 'app/models/staypuft/deployment/nova_service.rb', line 93

def set_defaults
  self.network_manager = NetworkManager::FLAT_DHCP
end

#vlan_manager? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/staypuft/deployment/nova_service.rb', line 101

def vlan_manager?
  self.network_manager == NetworkManager::VLAN
end

#vlan_range_arr ⇒ Object 



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# File 'app/models/staypuft/deployment/nova_service.rb', line 111

def vlan_range_arr
  arr = self.vlan_range.split(':')
end

#vlan_start ⇒ Object 



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# File 'app/models/staypuft/deployment/nova_service.rb', line 115

def vlan_start
  vlan_range_arr[0]
end