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fog--fog/lib/fog/rackspace/examples/compute_v2/detach_volume.rb

93 lines
2.8 KiB
Ruby

#!/usr/bin/env ruby
# This example demonstrates working with server and volumes on the Rackpace Open Cloud
require 'rubygems' #required for Ruby 1.8.x
require 'fog'
def get_user_input(prompt)
print "#{prompt}: "
gets.chomp
end
def select_server(servers)
abort "\nThere are not any servers in the Chicago region. Try running create_server.rb\n\n" if servers.empty?
puts "\nSelect Server For Volume Detachment:\n\n"
servers.each_with_index do |server, i|
puts "\t #{i}. #{server.name} [#{server.public_ip_address}]"
end
delete_str = get_user_input "\nEnter Server Number"
servers[delete_str.to_i]
end
def select_attachment(attachments)
abort "\nThis server does not contain any volumes in the Chicago region. Try running server_attachments.rb\n\n" if attachments.empty?
puts "\nSelect Volume To Detach:\n\n"
attachments.each_with_index do |attachment, i|
puts "\t #{i}. #{attachment.device}"
end
delete_str = get_user_input "\nEnter Volume Number"
attachments[delete_str.to_i]
end
# Use username defined in ~/.fog file, if absent prompt for username.
# For more details on ~/.fog refer to http://fog.io/about/getting_started.html
def rackspace_username
Fog.credentials[:rackspace_username] || get_user_input("Enter Rackspace Username")
end
# Use api key defined in ~/.fog file, if absent prompt for api key
# For more details on ~/.fog refer to http://fog.io/about/getting_started.html
def rackspace_api_key
Fog.credentials[:rackspace_api_key] || get_user_input("Enter Rackspace API key")
end
#create Next Generation Cloud Server service
compute_service = Fog::Compute.new({
:provider => 'rackspace',
:rackspace_username => rackspace_username,
:rackspace_api_key => rackspace_api_key,
:version => :v2, # Use Next Gen Cloud Servers
:rackspace_region => :ord #Use Chicago Region
})
cbs_service = Fog::Rackspace::BlockStorage.new({
:rackspace_username => rackspace_username,
:rackspace_api_key => rackspace_api_key,
:rackspace_region => :ord #Use Chicago Region
})
# retrieve list of servers
servers = compute_service.servers
# prompt user for server
server = select_server(servers)
# get attached volumes --also know as attachments
attachments = server.attachments
# prompt user for volume to detach
attachment = select_attachment(attachments)
volume = cbs_service.volumes.get attachment.volume_id
puts "Detaching Volume #{volume.display_name} From Server #{server.name}"
attachment.detach
puts "\n"
delete_confirm = get_user_input "Would You Like To Destroy Volume #{volume.display_name} (y/n)"
if delete_confirm.downcase == 'y'
# wait for server to finish detaching before attempting to delete
volume.wait_for(600) do
print "."
STDOUT.flush
ready? && attachments.empty?
end
volume.destroy
puts "\n\nThe Volume Has been Destroyed"
end