Class: Puppet::Provider::Junos::LAG

Inherits:
Puppet::Provider::Junos
  • Object
show all
Defined in:
lib/puppet/provider/junos/junos_lag.rb

Instance Method Summary collapse

Instance Method Details

#destroy ⇒ Object

Overriding Parent methods



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# File 'lib/puppet/provider/junos/junos_lag.rb', line 117

def destroy    
  Puppet.debug( "#{self.resource.type}::LAG-DESTROY #{resource[:name]}" )
  
  # we need to load the known IFD ports in the lag so we can unbind them
  # from the lag.  We 'trick' the Puppet agent into processing the 
  # "change links" method, and from there we can do the unlink and
  # removal of the IFD (special-case)
  
  ae_config = init_resource      
  @ndev_res[:links] = get_cookie_links( ae_config ) || []    
  resource[:links] = []    
  @property_hash[:links] = true
  
end

#get_cookie_links(cfg) ⇒ Object 

Utilities



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# File 'lib/puppet/provider/junos/junos_lag.rb', line 161

def get_cookie_links( cfg )            
  cfg.xpath( "apply-macro[name = 'netdev_lag[:links]']/data/name" ).collect { |n|
    n.text
  }    
end

#init_resource ⇒ Object

called from #netdev_exists?



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# File 'lib/puppet/provider/junos/junos_lag.rb', line 102

def init_resource

  @ndev_res ||= NetdevJunos::Resource.new( self, 'interfaces', 'interface' )       
  ndev_config = @ndev_res.getconfig    

  return nil unless lagcfg = ndev_config.xpath( '//interface')[0] 
  
  @ndev_res.set_active_state( lagcfg )         
  return lagcfg
end

#netdev_res_exists? ⇒ Boolean

triggered from Provider #exists?

Returns:

  • (Boolean) 


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# File 'lib/puppet/provider/junos/junos_lag.rb', line 45

def netdev_res_exists?   
  
  ### need to setup the @ifd_ether_options before we return anything
  ### since this will be used in the case of a yet-to-be-created LAG
  
  if Facter.value(:junos_ifd_style) == 'classic'
    # all ports in the LAG must be of the same type, so check the first one
    # and use it to determine the options stanza name.  yo.
    l_0 = resource[:links][0].to_s
    @ifd_ether_options = (l_0.start_with? 'fe-') ? 'fastether-options' : 'gigether-options'
  else
    # switching platforms are standardized on the same stanza name. 
    @ifd_ether_options = 'ether-options'    
  end    
  
  return false unless ae_config = init_resource   
  
  nc = netdev_get.netconf.rpc

  # -------------------------------------------    
  # PROPERTY: links
  # -------------------------------------------
  # retrieve details on the ae interface so we can pull the list of member links.  In the general
  # case there could be a lot of sub-interfaces (units), so we need to handle that case here.  We
  # only want the IFD names in the @ndev_res hash
  
  @ndev_res[:links] = get_cookie_links( ae_config ) || []
  
  # -------------------------------------------    
  # PROPERTY: minimum_links
  # -------------------------------------------
  
  if mlinks = ae_config.xpath('aggregated-ether-options/minimum-links')[0]
    @ndev_res[:minimum_links] = mlinks.text.chomp.to_i;
  else
    @ndev_res[:minimum_links] = 0
  end 

  # -------------------------------------------    
  # PROPERTY: lacp
  # -------------------------------------------
  
  lacp = ae_config.xpath('aggregated-ether-options/lacp')[0]
  if lacp
    @ndev_res[:lacp] = :active if lacp.xpath('active')[0]
    @ndev_res[:lacp] = :passive if lacp.xpath('passive')[0]
  else
    @ndev_res[:lacp] = :disabled
  end
 
  return true
end

#on_destroy(has_links, xml) ⇒ Object

on_destroy is called by the ‘change links’ handler as a special case. that handler will immediately return once on_destroy is done



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# File 'lib/puppet/provider/junos/junos_lag.rb', line 135

def on_destroy( has_links, xml )
  
  par = xml.instance_variable_get(:@parent)         
  dot_ifd = par.at_xpath('ancestor::interfaces')      
  
  has_links.each do |new_ifd| Nokogiri::XML::Builder.with( dot_ifd ) do |dot|
    dot.interface { dot.name new_ifd
      dot.send(@ifd_ether_options) {
        dot.send( :'ieee-802.3ad', Netconf::JunosConfig::DELETE )
      }
    }
    end
  end
  
  Nokogiri::XML::Builder.with( dot_ifd ) do |dot|
    dot.interface( Netconf::JunosConfig::DELETE ) { 
      dot.name resource[:name]
    }
  end
  
end

#set_cookie_links(cfg) ⇒ Object 



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# File 'lib/puppet/provider/junos/junos_lag.rb', line 167

def set_cookie_links( cfg )
  cfg.send(:'apply-macro', Netconf::JunosConfig::REPLACE ) {
    cfg.name 'netdev_lag[:links]'
    resource[:links].each{ |ifd|
      cfg.data { cfg.name ifd }
    }
  }
end

#xml_change_lacp(xml) ⇒ Object

PROPERTY: lacp



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# File 'lib/puppet/provider/junos/junos_lag.rb', line 200

def xml_change_lacp( xml )
  if resource[:lacp] == :disabled
    xml.send(:'aggregated-ether-options') {
      xml.lacp( Netconf::JunosConfig::DELETE )
    }
  else
    xml.send(:'aggregated-ether-options') {
      xml.lacp {
        xml.send resource[:lacp]
      }
    }
  end
end

#xml_change_links(xml) ⇒ Object

PROPERTY: links



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# File 'lib/puppet/provider/junos/junos_lag.rb', line 218

def xml_change_links( xml )    
  
  has = @ndev_res[:links] || []
  should = resource[:links] || []
  
  # --------------------------------------------------------------------
  # this is a special case where we're removing the entire LAG
  # we use an empty links list to trigger this action, see #destroy
  # method in the above code.
  # --------------------------------------------------------------------    
  
  if should.empty?
    on_destroy( has, xml )
    return
  end    
  
  set_cookie_links( xml )
  
  has = has.map(&:to_s)    
  should = should.map(&:to_s)    
  
  del = has - should
  add = should - has 
  
  par = xml.instance_variable_get(:@parent)         
  dot_ifd = par.at_xpath('ancestor::interfaces')

  add.each{ |new_ifd| Nokogiri::XML::Builder.with( dot_ifd ) {
    |dot| dot.interface { dot.name new_ifd
      dot.send(@ifd_ether_options.to_sym) {
        dot.send(:'ieee-802.3ad') {
          dot.bundle resource[:name]
        }
      }
  }}}  

  del.each{ |new_ifd| Nokogiri::XML::Builder.with( dot_ifd ) {
    |dot| dot.interface { dot.name new_ifd
      dot.send(@ifd_ether_options) {
        dot.send( :'ieee-802.3ad', Netconf::JunosConfig::DELETE )
      }
  }}}      
      
end

#xml_change_minimum_links(xml) ⇒ Object

PROPERTY: minimum_links



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# File 'lib/puppet/provider/junos/junos_lag.rb', line 184

def xml_change_minimum_links( xml )
  if resource[:minimum_links] > 0
    xml.send(:'aggregated-ether-options') {
      xml.send( :'minimum-links', resource[:minimum_links] )
    }
  else
    xml.send(:'aggregated-ether-options') {
      xml.send(:'minimum-links', Netconf::JunosConfig::DELETE )
    }
  end
end