Class: Hugo::Aws::Ec2

Inherits:
Object
  • Object
show all
Defined in:
lib/hugo/aws/ec2.rb

Constant Summary collapse

ACCESS_KEY = 
ENV['AMAZON_ACCESS_KEY_ID']
SECRET_KEY = 
ENV['AMAZON_SECRET_ACCESS_KEY']
KEY_NAME = 
ENV['KEY_NAME']
AMI = 
ENV['EC2_AMI_ID'] || 'ami-1515f67c'
ZONE = 
"us-east-1c"
TYPE = 
"m1.small"

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Ec2

Returns a new instance of Ec2.



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# File 'lib/hugo/aws/ec2.rb', line 17

def initialize(options = {})
  set_attributes(options)
end

Instance Attribute Details

#aws_access_key_id ⇒ Object

Returns the value of attribute aws_access_key_id.



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# File 'lib/hugo/aws/ec2.rb', line 13

def aws_access_key_id
  @aws_access_key_id
end

#aws_secret_access_key ⇒ Object

Returns the value of attribute aws_secret_access_key.



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# File 'lib/hugo/aws/ec2.rb', line 13

def aws_secret_access_key
  @aws_secret_access_key
end

#create_time ⇒ Object

Returns the value of attribute create_time.



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# File 'lib/hugo/aws/ec2.rb', line 13

def create_time
  @create_time
end

#image_id ⇒ Object

Returns the value of attribute image_id.



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# File 'lib/hugo/aws/ec2.rb', line 13

def image_id
  @image_id
end

#key_name ⇒ Object

Returns the value of attribute key_name.



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# File 'lib/hugo/aws/ec2.rb', line 13

def key_name
  @key_name
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/hugo/aws/ec2.rb', line 13

def name
  @name
end

#security_group ⇒ Object

Returns the value of attribute security_group.



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# File 'lib/hugo/aws/ec2.rb', line 13

def security_group
  @security_group
end

#status ⇒ Object

Returns the value of attribute status.



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# File 'lib/hugo/aws/ec2.rb', line 13

def status
  @status
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/hugo/aws/ec2.rb', line 13

def type
  @type
end

#uri ⇒ Object

Returns the value of attribute uri.



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# File 'lib/hugo/aws/ec2.rb', line 13

def uri
  @uri
end

#zone ⇒ Object

Returns the value of attribute zone.



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# File 'lib/hugo/aws/ec2.rb', line 13

def zone
  @zone
end

Class Method Details

.all(access_key_id, secret_access_key) ⇒ Object

def self.find_or_create_security_group(name, description)

@ec2 = AWS::EC2::Base.new(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY)
begin
  @security_groups = @ec2.describe_security_groups(:group_name => name)
rescue
  @security_groups = @ec2.create_security_group(:group_name => name, :group_description => description)
end
@security_groups

end

def self.destroy_security_group(name)

@ec2 = AWS::EC2::Base.new(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY)
@ec2.delete_security_group(:group_name => name)

end



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# File 'lib/hugo/aws/ec2.rb', line 105

def self.all(access_key_id, secret_access_key)
  @ec2 = AWS::EC2::Base.new(:access_key_id => access_key_id, :secret_access_key => secret_access_key)
  @ec2.describe_instances().reservationSet.item[0].instancesSet.item.map { |i| self.new(i) }
end

.find(instance, access_key_id, secret_access_key) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/hugo/aws/ec2.rb', line 110

def self.find(instance, access_key_id, secret_access_key)
  raise ArgumentError, "Instance Required" unless instance
  @ec2 = AWS::EC2::Base.new(:access_key_id => access_key_id, :secret_access_key => secret_access_key)
  self.new(@ec2.describe_instances(:instance_id => instance).reservationSet.item[0].instancesSet.item[0])
end

.find_or_create(options) ⇒ Object

def self.find(url)

@ec2 = AWS::EC2::Base.new(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY)
self.new(@ec2.describe_instances(:instance_id => instance).reservationSet.item[0].instancesSet.item[0])

end



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# File 'lib/hugo/aws/ec2.rb', line 121

def self.find_or_create(options)
  if options[:name]
    self.find(options[:name], options[:access_key_id], options[:secret_access_key]) 
  else
    self.new(options).create
  end
end

Instance Method Details

#create ⇒ Object 



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# File 'lib/hugo/aws/ec2.rb', line 56

def create
  result = ec2.run_instances(
    :image_id => self.image_id, 
    :key_name => self.key_name, 
    :max_count => 1,
    :availability_zone => self.zone,
    :security_group => self.security_group) unless self.create_time
  set_attributes(result.instancesSet.item[0]) if result.instancesSet.item[0]
  self
end

#destroy ⇒ Object 



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# File 'lib/hugo/aws/ec2.rb', line 67

def destroy
  ec2.terminate_instances(:instance_id => self.name)
end

#save ⇒ Object 



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# File 'lib/hugo/aws/ec2.rb', line 71

def save
  self.create
end

#set_attributes(options = {}) ⇒ Object 



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# File 'lib/hugo/aws/ec2.rb', line 21

def set_attributes(options = {})
  @name = options["instanceId"] 

  if options["placement"] and options["placement"]["availabilityZone"]
    @zone = options["placement"]["availabilityZone"] 
  elsif options[:zone]
    @zone = options[:zone]
  else
    @zone = ZONE
  end

  @uri = options["dnsName"] || ""
  @type = options[:type] || options["instanceType"]
  @image_id = options[:image_id] || options["imageId"]
  @key_name = options[:key_name] || options["keyName"]

  @create_time = options["launchTime"] || nil

  if options["instanceState"] and options["instanceState"]["name"]
    @status = options["instanceState"]["name"]
  else
    @status = "unknown"
  end

  @security_group = options[:security_group] || "default"
  if options["groupSet"] and options["groupSet"]["item"] and options["groupSet"]["item"][0]
    @security_group = options["groupSet"]["item"][0]["groupId"]
  end
  
  @aws_access_key_id = options[:aws_access_key_id] || ACCESS_KEY
  @aws_secret_access_key = options[:aws_secret_access_key] || SECRET_KEY
  
end

#ssh(commands, dna = nil, key_pair_file = nil) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/hugo/aws/ec2.rb', line 75

def ssh(commands, dna=nil, key_pair_file=nil)
  raise ArgumentError.new("Key Pair File is required") if key_pair_file.nil?
  begin
    Net::SSH.start(self.uri, "ubuntu", :keys => key_pair_file) do |ssh|
      if dna
        ssh.exec!("echo \"#{dna.to_json.gsub('"','\"')}\" > ~/dna.json")
      end
      commands.each do |cmd|
        print ssh.exec!(cmd)
      end
    end
  rescue
  end
end