Class: Hugo::Aws::Elb

Inherits:
Object
  • Object
show all
Defined in:
lib/hugo/aws/elb.rb

Constant Summary collapse

ACCESS_KEY = 
ENV['AMAZON_ACCESS_KEY_ID']
SECRET_KEY = 
ENV['AMAZON_SECRET_ACCESS_KEY']
ZONES = 
["us-east-1c"]
LISTENERS = 
[{"InstancePort"=>"8080", "Protocol"=>"HTTP", "LoadBalancerPort"=>"80"}, 
{"InstancePort"=>"8443", "Protocol"=>"TCP", "LoadBalancerPort"=>"443"}]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Elb

Returns a new instance of Elb.



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# File 'lib/hugo/aws/elb.rb', line 13

def initialize(options = {} )
  @name = options[:name] || options["LoadBalancerName"]
    
  @uri = options["DNSName"] if options["DNSName"]
      
  if options["Instances"] and options["Instances"]["member"]
    @instances = options["Instances"]["member"].map { |i| i.InstanceId }
  else
    @instances = []
  end
  if options["AvailabilityZones"] and options["AvailabilityZones"]["member"]
    @zones = options["AvailabilityZones"]["member"]
  else
    @zones = options[:zones] || ZONES
  end
  if options["Listeners"] and options["Listeners"]["member"]
    @listeners = options["Listeners"]["member"]
  else
    @listeners = options[:listeners] || LISTENERS
  end
  if options["CreatedTime"]
    @create_time = options["CreatedTime"]
  end
end

Instance Attribute Details

#create_time ⇒ Object

Returns the value of attribute create_time.



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# File 'lib/hugo/aws/elb.rb', line 11

def create_time
  @create_time
end

#instances ⇒ Object

Returns the value of attribute instances.



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# File 'lib/hugo/aws/elb.rb', line 11

def instances
  @instances
end

#listeners ⇒ Object

Returns the value of attribute listeners.



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# File 'lib/hugo/aws/elb.rb', line 11

def listeners
  @listeners
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/hugo/aws/elb.rb', line 11

def name
  @name
end

#uri ⇒ Object

Returns the value of attribute uri.



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# File 'lib/hugo/aws/elb.rb', line 11

def uri
  @uri
end

#zones ⇒ Object

Returns the value of attribute zones.



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# File 'lib/hugo/aws/elb.rb', line 11

def zones
  @zones
end

Class Method Details

.all ⇒ Object 



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# File 'lib/hugo/aws/elb.rb', line 76

def self.all
  @elb = AWS::ELB::Base.new(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY)
  instances = @elb.describe_load_balancers().DescribeLoadBalancersResult.LoadBalancerDescriptions.member      
  instances.map { |i| self.new(i) }
end

.find(balancer) ⇒ Object 



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# File 'lib/hugo/aws/elb.rb', line 82

def self.find(balancer)
  @elb = AWS::ELB::Base.new(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY)
  
  result = nil
    
  @elb.describe_load_balancers().DescribeLoadBalancersResult.LoadBalancerDescriptions.member.each do |m|
    result = self.new(m) if m.LoadBalancerName == balancer
  end
  
  result
rescue
  nil
end

.find_or_create(options) ⇒ Object 



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# File 'lib/hugo/aws/elb.rb', line 96

def self.find_or_create(options)
  self.find(options[:name]) || self.new(options).create
end

Instance Method Details

#add(instance) ⇒ Object 



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# File 'lib/hugo/aws/elb.rb', line 57

def add(instance)
  @elb = AWS::ELB::Base.new(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY)
  @elb.register_instances_with_load_balancer(
    :instances => [instance],
    :load_balancer_name => @name)
  @instances << instance
  self
end

#create ⇒ Object 



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# File 'lib/hugo/aws/elb.rb', line 38

def create
  @elb = AWS::ELB::Base.new(:access_key_id => Hugo::Aws::Elb::ACCESS_KEY, :secret_access_key => Hugo::Aws::Elb::SECRET_KEY)
  @elb.create_load_balancer(
    :load_balancer_name => self.name,
    :listeners => self.listeners,
    :availability_zones => self.zones
  ) unless self.create_time
  self
end

#destroy ⇒ Object 



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# File 'lib/hugo/aws/elb.rb', line 48

def destroy
  @elb = AWS::ELB::Base.new(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY)
  @elb.delete_load_balancer(:load_balancer_name => self.name)
end

#remove(instance) ⇒ Object 



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# File 'lib/hugo/aws/elb.rb', line 66

def remove(instance)
  
  @elb = AWS::ELB::Base.new(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY)
  @elb.deregister_instances_from_load_balancer(
    :instances => [instance],
    :load_balancer_name => @name)
  @instances = @instances - [instance]
  self
end

#save ⇒ Object 



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# File 'lib/hugo/aws/elb.rb', line 53

def save
  self.create
end