Class: TDLTools::CloudInst

Inherits:
Object
  • Object
show all
Defined in:
lib/cloud_inst.rb

Constant Summary collapse

DC_URL = 
"http://localhost:3002/api"
NO_START =

set to true to disable creation of instances

false

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cloud_attributes) ⇒ CloudInst

Returns a new instance of CloudInst.



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# File 'lib/cloud_inst.rb', line 27

def initialize(cloud_attributes)
  # Use deltacloud to launch and setup instance
  @cloud_type = cloud_attributes[:type].intern

  @image   = cloud_attributes[:image]
  @keyname = cloud_attributes[:keyname]

  @dc = DeltaCloud.new(cloud_attributes[:username],
                       cloud_attributes[:password],
                       DC_URL)
  @dc.use_driver @cloud_type

  @dc.instance_variable_set :@api_provider,
                            cloud_attributes[:provider] if @cloud_type == :openstack # XXX needed for openstack

  @ssh = cloud_attributes[:ssh_cmd]
  @scp = cloud_attributes[:scp_cmd]
end

Instance Attribute Details

#address ⇒ Object (readonly)

ssh address of the instance



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# File 'lib/cloud_inst.rb', line 19

def address
  @address
end

#scp ⇒ Object (readonly)

scp command to use



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# File 'lib/cloud_inst.rb', line 25

def scp
  @scp
end

#ssh ⇒ Object (readonly)

ssh command to use



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# File 'lib/cloud_inst.rb', line 22

def ssh
  @ssh
end

Instance Method Details

#cp(from, to, append = false) ⇒ Object 



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# File 'lib/cloud_inst.rb', line 69

def cp(from, to, append=false)
  scpf = @scp.gsub(/\[source\]/, from).
              gsub(/\[dst\]/,    from)
  `#{scpf}`
  `#{ssh} sudo mv #{from} #{to}`
end

#exec(cmd) ⇒ Object 



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# File 'lib/cloud_inst.rb', line 65

def exec(cmd)
  `#{@ssh} #{cmd}`
end

#launch ⇒ Object 



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# File 'lib/cloud_inst.rb', line 46

def launch
  # startup cloud instance
  unless NO_START
    dc_inst = @dc.create_instance(@image, :keyname => @keyname)
    sleep 300 # 5 minutes
  end

  # set various propertries from the instance
  dc_inst = (@cloud_type == :openstack ? @dc.instances.first : @dc.instances.last) # XXX for openstack its first, for ec2 its last
  address =  dc_inst.public_addresses.first
  address = dc_inst.private_addresses.first if address.nil?
  @address = address[:address]

  @ssh = @ssh.gsub(/\[address\]/, @address)
  @scp = @scp.gsub(/\[address\]/, @address)

  self
end