Class: BuildCloud::Instance

Inherits:
Object
  • Object
show all
Includes:
Component
Defined in:
lib/build-cloud/instance.rb

Constant Summary collapse

@@objects = 
[]

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Component

included

Constructor Details

#initialize(fog_interfaces, log, options = {}) ⇒ Instance

Returns a new instance of Instance.



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# File 'lib/build-cloud/instance.rb', line 25

def initialize ( fog_interfaces, log, options = {} )

    @ec2     = fog_interfaces[:compute]
    @log     = log
    @options = options

    @log.debug( options.inspect )

    required_options(:image_id, :flavor_id, :private_ip_address, :name)
    require_one_of(:security_group_ids, :security_group_names, :network_interfaces)
    require_one_of(:subnet_id, :subnet_name, :network_interfaces)
    #require_one_of(:network_interfaces, :private_ip_address)
    require_one_of(:vpc_id, :vpc_name)

end

Class Method Details

.get_id_by_name(name) ⇒ Object 



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# File 'lib/build-cloud/instance.rb', line 7

def self.get_id_by_name( name )

    instance = self.search( :name => name ).first

    unless instance
        raise "Couldn't get an instance object for #{name} - is it defined?"
    end

    instance_fog = instance.read

    unless instance_fog
        raise "Couldn't get an instance fog object for #{name} - is it created?"
    end

    instance_fog.id

end

Instance Method Details

#create ⇒ Object 



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# File 'lib/build-cloud/instance.rb', line 45

def create
    
    return if exists?

    @log.info( "Creating instance #{@options[:name]}" )

    options = @options.dup

    if options[:security_group_names] or options[:security_group_ids]
        unless options[:security_group_ids]

            options[:security_group_ids] = []

            options[:security_group_names].each do |sg|
                options[:security_group_ids] << BuildCloud::SecurityGroup.get_id_by_name( sg )
            end

            options.delete(:security_group_names)

        end
    end

    if options[:subnet_id] or options[:subnet_name]
        unless options[:subnet_id]

            options[:subnet_id] = BuildCloud::Subnet.get_id_by_name( options[:subnet_name] )
            options.delete(:subnet_name)

        end
    end

    unless options[:vpc_id]

        options[:vpc_id] = BuildCloud::VPC.get_id_by_name( options[:vpc_name] )
        options.delete(:vpc_name)

    end

    if options[:private_ip_address] and options[:network_interfaces]
        puts "WARNING: InvalidParameterCombination => Network interfaces and an instance-level private IP address should not be specified on the same request"
        puts "Using Network interface"
        options.delete(:private_ip_address)
    end

    if options[:subnet_id] and options[:network_interfaces]
        puts "WARNING: InvalidParameterCombination => Network interfaces and subnet_ids should not be specified on the same request"
        puts "Using Network interface"
        options.delete(:subnet_id)
    end

    options[:user_data] = JSON.generate( @options[:user_data] )

    options[:network_interfaces].each { |iface|
        if ! iface[:network_interface_name].nil?
            interface_id = BuildCloud::NetworkInterface.get_id_by_name( iface[:network_interface_name] )
            iface['NetworkInterfaceId'] = interface_id
            iface.delete(:network_interface_name)
        end
    } unless options[:network_interfaces].nil?

    @log.debug( options.inspect )

    instance = @ec2.servers.new( options )
    instance.save

    options[:tags].each do | tag |
        attributes = {}
        attributes[:resource_id] = instance.id.to_s
        attributes[:key] = tag[:key]
        attributes[:value] = tag[:value]
        new_tag = @ec2.tags.new( attributes )
        new_tag.save
    end unless options[:tags].empty? or options[:tags].nil?

    @log.debug( instance.inspect )

end

#delete ⇒ Object 



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# File 'lib/build-cloud/instance.rb', line 130

def delete

    return unless exists?

    @log.info( "Deleting instance #{@options[:name]}" )

    fog_object.destroy

end

#read ⇒ Object Also known as: fog_object 



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# File 'lib/build-cloud/instance.rb', line 123

def read
    instances = @ec2.servers.select{ |l| l.tags['Name'] == @options[:name]}
    instances.select{ |i| i.state =~ /(running|pending)/ }.first
end

#ready_timeout ⇒ Object 



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# File 'lib/build-cloud/instance.rb', line 41

def ready_timeout
    5 * 60 # some instances (eg big EBS root vols) can take a while
end