Class: DanarchySys::OpenStack::Compute

Inherits:
Object
  • Object
show all
Defined in:
lib/danarchy_sys/openstack/compute.rb

Instance Method Summary collapse

Constructor Details

#initialize(provider) ⇒ Compute

Returns a new instance of Compute.



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# File 'lib/danarchy_sys/openstack/compute.rb', line 9

def initialize(provider)
  danarchysys_config = DanarchySys::ConfigManager::Config.new
  connection = danarchysys_config[:connections][provider.to_sym]
  @settings = danarchysys_config[:global_settings]
  @compute = Fog::Compute::OpenStack.new(connection)
end

Instance Method Details

#fallback_ssh(ipv4, pemfile) ⇒ Object 



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# File 'lib/danarchy_sys/openstack/compute.rb', line 75

def fallback_ssh(ipv4, pemfile)
  users = ['ubuntu','debian','centos','fedora','core']
  ssh = false

  users.each do |user|
    puts "Attempting connection as user: #{user} => #{ipv4}"
    connect = "ssh #{user}@#{ipv4} -i '#{pemfile}'"
    ssh = system(connect)
    return true if ssh == true
  end

  if ssh == false
    puts 'Unable to connect after 3 tries!'
    return false
  end
end

#flavors ⇒ Object 



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# File 'lib/danarchy_sys/openstack/compute.rb', line 28

def flavors
  ComputeFlavors.new(@compute)
end

#images ⇒ Object 



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# File 'lib/danarchy_sys/openstack/compute.rb', line 24

def images
  ComputeImages.new(@compute)
end

#instances ⇒ Object 



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# File 'lib/danarchy_sys/openstack/compute.rb', line 16

def instances
  ComputeInstances.new(@compute, @settings)
end

#keypairs ⇒ Object 



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# File 'lib/danarchy_sys/openstack/compute.rb', line 20

def keypairs
  ComputeKeypairs.new(@compute, @settings)
end

#secgroups ⇒ Object 



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# File 'lib/danarchy_sys/openstack/compute.rb', line 32

def secgroups
  ComputeSecgroups.new(@compute)
end

#ssh(instance_name) ⇒ Object 



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# File 'lib/danarchy_sys/openstack/compute.rb', line 36

def ssh(instance_name)
  (comp_inst, comp_kp, comp_img) = instances, keypairs, images
  instance = comp_inst.get_instance(instance_name)
  keypair_name = instance.key_name
  pemfile = comp_kp.pemfile_path(keypair_name)
  
  addrs = comp_inst.get_public_addresses(instance_name)
  ipv4 = addrs.grep(/\./).first
  ipv6 = addrs.grep(/:/).first

  # Define user by image_id
  image_id = instance.image['id']
  image = comp_img.get_image_by_id(image_id)

  if image == nil
    puts "Image not found for #{instance.name}! This instance needs to be rebuild with a current image."
    return fallback_ssh(ipv4, pemfile)          
  end

  # CoreOS is an exception with user as simply 'core' and not 'coreos'
  user = 'ubuntu' if image.name =~ /ubuntu/i
  user = 'debian' if image.name =~ /debian/i
  user = 'centos' if image.name =~ /centos/i
  user = 'fedora' if image.name =~ /fedora/i
  user = 'core'   if image.name =~ /coreos/i

  puts "Connecting as user: #{user} => #{ipv4}"
  connect = "ssh #{user}@#{ipv4} -i '#{pemfile}'"
  ssh = system(connect)

  attempts = 1
  until ssh == true || attempts > 3
    puts "Connection failed. Attempting again after 5 seconds..."
    sleep(5)
    fallback_ssh(ipv4, pemfile)
    attempts += 1
  end
end