Class: Rubber::Cloud::Aws

Inherits:
Base
  • Object
show all
Defined in:
lib/rubber/cloud/aws.rb

Instance Attribute Summary

Attributes inherited from Base

#capistrano, #env

Instance Method Summary collapse

Constructor Details

#initialize(env, capistrano) ⇒ Aws

Returns a new instance of Aws


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# File 'lib/rubber/cloud/aws.rb', line 10

def initialize(env, capistrano)
  super(env, capistrano)
  @aws_env = env.cloud_providers.aws
  @ec2 = AWS::EC2::Base.new(:access_key_id => @aws_env.access_key, :secret_access_key => @aws_env.secret_access_key)
  @ec2elb = AWS::ELB::Base.new(:access_key_id => @aws_env.access_key, :secret_access_key => @aws_env.secret_access_key)
  AWS::S3::Base.establish_connection!(:access_key_id => @aws_env.access_key, :secret_access_key => @aws_env.secret_access_key)
end

Instance Method Details

#add_security_group_rule(group_name, protocol, from_port, to_port, source) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 116

def add_security_group_rule(group_name, protocol, from_port, to_port, source)
  opts = {:group_name => group_name}
  if source.instance_of? Hash
    opts = opts.merge(:source_security_group_name => source[:name], :source_security_group_owner_id => source[:account])
  else
    opts = opts.merge(:ip_protocol => protocol, :from_port => from_port, :to_port => to_port, :cidr_ip => source)
  end
  @ec2.authorize_security_group_ingress(opts)
end

#attach_static_ip(ip, instance_id) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 145

def attach_static_ip(ip, instance_id)
  response = @ec2.associate_address(:instance_id => instance_id, :public_ip => ip)
  return response.return == "true"
end

#attach_volume(volume_id, instance_id, device) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 184

def attach_volume(volume_id, instance_id, device)
  response = @ec2.attach_volume(:volume_id => volume_id, :instance_id => instance_id, :device => device)
  return response.status
end

#create_image(image_name) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 216

def create_image(image_name)
  ec2_key = @aws_env.key_file
  ec2_pk = @aws_env.pk_file
  ec2_cert = @aws_env.cert_file
  ec2_key_dest = "/mnt/#{File.basename(ec2_key)}"
  ec2_pk_dest = "/mnt/#{File.basename(ec2_pk)}"
  ec2_cert_dest = "/mnt/#{File.basename(ec2_cert)}"

  capistrano.put(File.read(ec2_key), ec2_key_dest)
  capistrano.put(File.read(ec2_pk), ec2_pk_dest)
  capistrano.put(File.read(ec2_cert), ec2_cert_dest)

  arch = capistrano.capture("uname -m").strip
  arch = case arch when /i\d86/ then "i386" else arch end

  capistrano.sudo_script "create_bundle", <<-CMD
    rvm use system
    export RUBYLIB=/usr/lib/site_ruby/
    unset RUBYOPT
    nohup ec2-bundle-vol --batch -d /mnt -k #{ec2_pk_dest} -c #{ec2_cert_dest} -u #{@aws_env.} -p #{image_name} -r #{arch} &> /tmp/ec2-bundle-vol.log &
    echo "Creating image from instance volume..."
    while true; do
      if ! ps ax | grep -q "[e]c2-bundle-vol"; then exit; fi
      echo -n .
      sleep 1
    done
  CMD

  capistrano.sudo_script "register_bundle", <<-CMD
    rvm use system
    export RUBYLIB=/usr/lib/site_ruby/
    unset RUBYOPT
    echo "Uploading image to S3..."
    ec2-upload-bundle --batch -b #{@aws_env.image_bucket} -m /mnt/#{image_name}.manifest.xml -a #{@aws_env.access_key} -s #{@aws_env.secret_access_key}
  CMD

  image_location = "#{@aws_env.image_bucket}/#{image_name}.manifest.xml"
  response = @ec2.register_image(:image_location => image_location)
  return response.imageId
end

#create_instance(ami, ami_type, security_groups, availability_zone) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 18

def create_instance(ami, ami_type, security_groups, availability_zone)
  response = @ec2.run_instances(:image_id => ami, :key_name => @aws_env.key_name, :instance_type => ami_type, :security_group => security_groups, :availability_zone => availability_zone)
  instance_id = response.instancesSet.item[0].instanceId
  return instance_id
end

#create_security_group(group_name, group_description) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 69

def create_security_group(group_name, group_description)
  @ec2.create_security_group(:group_name => group_name, :group_description => group_description)
end

#create_spot_instance_request(spot_price, ami, ami_type, security_groups, availability_zone) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 24

def create_spot_instance_request(spot_price, ami, ami_type, security_groups, availability_zone)
  response = @ec2.request_spot_instances(:spot_price => spot_price, :image_id => ami, :key_name => @aws_env.key_name, :instance_type => ami_type, :security_group => security_groups, :availability_zone => availability_zone)
  request_id = response.spotInstanceRequestSet.item[0].spotInstanceRequestId
  return request_id
end

#create_static_ipObject


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# File 'lib/rubber/cloud/aws.rb', line 140

def create_static_ip
  response = @ec2.allocate_address()
  return response.publicIp
end

#create_volume(size, zone, base_volume_id = nil) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 174

def create_volume(size, zone, base_volume_id = nil)
  snapshot = {}
  if base_volume_id
    base_snapshots = @ec2.describe_snapshots["snapshotSet"]["item"].select{|s|s["volumeId"] == base_volume_id}
    snapshot = base_snapshots.sort{|a,b| b["startTime"] <=> a["startTime"]}.first
  end
  response = @ec2.create_volume(:size => size.to_s, :availability_zone => zone, :snapshot_id => snapshot["snapshotId"])
  return response.volumeId
end

#describe_availability_zonesObject


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# File 'lib/rubber/cloud/aws.rb', line 57

def describe_availability_zones
  zones = []
  response = @ec2.describe_availability_zones()
  response.availabilityZoneInfo.item.each do |item|
    zone = {}
    zone[:name] = item.zoneName
    zone[:state] =item.zoneState
    zones << zone
  end if response.availabilityZoneInfo
  return zones
end

#describe_images(image_id = nil) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 257

def describe_images(image_id=nil)
  images = []
  opts = {:owner_id => 'self'}
  opts[:image_id] = image_id if image_id
  response = @ec2.describe_images(opts)
  response.imagesSet.item.each do |item|
    image = {}
    image[:id] = item.imageId
    image[:location] = item.imageLocation
    images << image
  end if response.imagesSet
  return images
end

#describe_instances(instance_id = nil) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 30

def describe_instances(instance_id=nil)
  instances = []
  opts = {}
  opts[:instance_id] = instance_id if instance_id

  response = @ec2.describe_instances(opts)
  response.reservationSet.item.each do |ritem|
    ritem.instancesSet.item.each do |item|
      instance = {}
      instance[:id] = item.instanceId
      instance[:external_host] = item.dnsName
      instance[:external_ip] = IPSocket.getaddress(instance[:external_host]) rescue nil
      instance[:internal_host] = item.privateDnsName
      instance[:state] = item.instanceState.name
      instance[:zone] = item.placement.availabilityZone
      instance[:platform] = item.platform || 'linux'
      instances << instance
    end
  end if response.reservationSet

  return instances
end

#describe_load_balancers(name = nil) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 293

def describe_load_balancers(name=nil)
  lbs = []
  opts = {}
  opts[:load_balancer_names] = name if name
  response = @ec2elb.describe_load_balancers(opts)
  response.describeLoadBalancersResult.member.each do |member|
    lb = {}
    lb[:name] = member.loadBalancerName
    lb[:dns_name] = member.dNSName

    member.availabilityZones.member.each do |zone|
      lb[:zones] ||= []
      lb[:zones] << zone
    end

    member.listeners.member.each do |member|
      listener = {}
      listener[:protocol] = member.protocol
      listener[:port] = member.loadBalancerPort
      listener[:instance_port] = member.instancePort
      lb[:listeners] ||= []
      lb[:listeners] << listener
    end

    lbs << lb
  end if response.describeLoadBalancersResult
  return lbs
end

#describe_security_groups(group_name = nil) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 73

def describe_security_groups(group_name=nil)
  groups = []

  opts = {}
  opts[:group_name] = group_name if group_name
  response = @ec2.describe_security_groups(opts)

  response.securityGroupInfo.item.each do |item|
    group = {}
    group[:name] = item.groupName
    group[:description] = item.groupDescription

    item.ipPermissions.item.each do |ip_item|
      group[:permissions] ||= []
      rule = {}

      rule[:protocol] = ip_item.ipProtocol
      rule[:from_port] = ip_item.fromPort
      rule[:to_port] = ip_item.toPort

      ip_item.groups.item.each do |rule_group|
        rule[:source_groups] ||= []
        source_group = {}
        source_group[:account] = rule_group.userId
        source_group[:name] = rule_group.groupName
        rule[:source_groups] << source_group
      end if ip_item.groups

      ip_item.ipRanges.item.each do |ip_range|
        rule[:source_ips] ||= []
        rule[:source_ips] << ip_range.cidrIp
      end if ip_item.ipRanges

      group[:permissions] << rule
    end if item.ipPermissions

    groups << group
    
  end if response.securityGroupInfo

  return groups
end

#describe_spot_instance_requests(request_id = nil) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 322

def describe_spot_instance_requests(request_id=nil)
  requests = []
  opts = {}
  opts[:spot_instance_request_id] = request_id if request_id
  response = @ec2.describe_spot_instance_requests(opts)
  response.spotInstanceRequestSet.item.each do |item|
    request = {}
    request[:id] = item.spotInstanceRequestId
    request[:spot_price] = item.spotPrice
    request[:state] = item.state
    request[:created_at] = item.createTime
    request[:type] = item.launchSpecification.instanceType
    request[:image_id] = item.launchSpecification.imageId
    request[:instance_id] = item.instanceId
    requests << request
  end if response.spotInstanceRequestSet
  return requests
end

#describe_static_ips(ip = nil) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 155

def describe_static_ips(ip=nil)
  ips = []
  opts = {}
  opts[:public_ip] = ip if ip
  response = @ec2.describe_addresses(opts)
  response.addressesSet.item.each do |item|
    ip = {}
    ip[:instance_id] = item.instanceId
    ip[:ip] = item.publicIp
    ips << ip
  end if response.addressesSet
  return ips
end

#describe_volumes(volume_id = nil) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 193

def describe_volumes(volume_id=nil)
  volumes = []
  opts = {}
  opts[:volume_id] = volume_id if volume_id
  response = @ec2.describe_volumes(opts)
  response.volumeSet.item.each do |item|
    volume = {}
    volume[:id] = item.volumeId
    volume[:status] = item.status
    if item.attachmentSet
      attach = item.attachmentSet.item[0]
      volume[:attachment_instance_id] = attach.instanceId
      volume[:attachment_status] = attach.status
    end
    volumes << volume
  end if response.volumeSet
  return volumes
end

#destroy_image(image_id) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 271

def destroy_image(image_id)
  image = describe_images(image_id).first
  raise "Could not find image: #{image_id}, aborting destroy_image" if image.nil?
  image_location = image[:location]
  bucket = image_location.split('/').first
  image_name = image_location.split('/').last.gsub(/\.manifest\.xml$/, '')

  @ec2.deregister_image(:image_id => image_id)

  s3_bucket = AWS::S3::Bucket.find(bucket)
  s3_bucket.objects(:prefix => image_name).clone.each do |obj|
    obj.delete
  end
  if s3_bucket.empty?
    s3_bucket.delete
  end
end

#destroy_instance(instance_id) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 53

def destroy_instance(instance_id)
  response = @ec2.terminate_instances(:instance_id => instance_id)
end

#destroy_security_group(group_name) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 136

def destroy_security_group(group_name)
  @ec2.delete_security_group(:group_name => group_name)
end

#destroy_spot_instance_request(request_id) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 289

def destroy_spot_instance_request(request_id)
  @ec2.cancel_spot_instance_requests :spot_instance_request_id => request_id
end

#destroy_static_ip(ip) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 169

def destroy_static_ip(ip)
  response = @ec2.release_address(:public_ip => ip)
  return response.return == "true"
end

#destroy_volume(volume_id) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 212

def destroy_volume(volume_id)
  @ec2.delete_volume(:volume_id => volume_id)
end

#detach_static_ip(ip) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 150

def detach_static_ip(ip)
  response = @ec2.disassociate_address(:public_ip => ip)
  return response.return == "true"
end

#detach_volume(volume_id) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 189

def detach_volume(volume_id)
  @ec2.detach_volume(:volume_id => volume_id, :force => 'true')
end

#remove_security_group_rule(group_name, protocol, from_port, to_port, source) ⇒ Object


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# File 'lib/rubber/cloud/aws.rb', line 126

def remove_security_group_rule(group_name, protocol, from_port, to_port, source)
  opts = {:group_name => group_name}
  if source.instance_of? Hash
    opts = opts.merge(:source_security_group_name => source[:name], :source_security_group_owner_id => source[:account])
  else
    opts = opts.merge(:ip_protocol => protocol, :from_port => from_port, :to_port => to_port, :cidr_ip => source)
  end
  @ec2.revoke_security_group_ingress(opts)
end