Class: VM

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

Class Method Summary collapse

Class Method Details

.alive(host, query = nil) ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 24

def self.alive(host, query=nil)
  query ||= query(host)
  query['ok'] && query[host]['state'] == 'running'
end

.destroy(id) ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 7

def self.destroy(id)
  hosts = Hosts.get_hosts_from_id(id)
  Groups.delete_tag(id) if Groups.is_tag?(id)
  Groups.delete_all if id == 'all'
  hosts = hosts.select { |host| alive(host) }
  puts `floaty delete #{hosts.join(',')}` unless hosts.empty?
end

.get_current_lifetime(host) ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 19

def self.get_current_lifetime(host)
  status = query(host)
  status['ok'] ? status[host]['lifetime'] : nil
end

.get_vm(platform = 'centos-7-x86_64') ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 104

def self.get_vm(platform='centos-7-x86_64')
  response = `floaty get #{platform} 2>&1`
  raise "Error obtaining a VM: #{response}" if response.include?('error')
  return response.split(' ')[1].split('.')[0]
end

.getsnapshot(id, snaptag) ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 83

def self.getsnapshot(id, snaptag)
  data = Conf.load_data
  data['snapshots'][id][snaptag]
end

.increaselife(id, amount) ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 29

def self.increaselife(id, amount)
  amount = 100 if amount.nil?
  hosts = Hosts.get_hosts_from_id(id)
  hosts.each do |host|
    if lifetime = get_current_lifetime(host)
      lifetime += amount
      print "#{host} to #{lifetime} hours: "
      puts `floaty modify #{host} --lifetime #{lifetime}`.split("\n")[0]
    else
      puts "Could not query host #{host}".red
    end
  end
end

.query(host) ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 15

def self.query(host)
  eval(`floaty query #{host}`)
end

.revert(id, snaptag) ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 93

def self.revert(id, snaptag)
  snaptag = 'Blank Snaptag' unless snaptag
  shas = VM.getsnapshot(id, snaptag)
  shas.each do |host, sha|
    print "#{host}: #{sha} --- "
    puts `floaty revert #{host} #{sha}`
  end
  puts 'Waiting 10 seconds for revert to take effect'
  sleep(10)
end

.snapshot(id, snaptag, clr = false) ⇒ Object 



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# File 'lib/floatyhelper/vm.rb', line 43

def self.snapshot(id, snaptag, clr=false)
  snaptag = 'Blank Snaptag' unless snaptag
  hosts = Hosts.get_hosts_from_id(id)
  shas = {}
  hosts.each do |host|
    print "#{host}: "
    result = `floaty snapshot #{host}`
    message = result.split("\n")[0]
    answer = eval(result.sub(message,''))
    sha = answer[host]['snapshot']
    puts sha
    shas[host] = sha
  end

  data = Conf.load_data
  data['snapshots'] ||= {}
  data['snapshots'][id] ||= {}
  data['snapshots'][id][snaptag] = shas
  Conf.write_data(data)

  puts `tput clear` if clr
  puts 'Waiting for snapshots to appear in floaty query...'
  alldone = false
  while !alldone do
    puts `tput cup 1` if clr
    alldone = true
    print "\r" unless clr
    hosts.each do |host|
      answer = eval(`floaty query #{host}`)[host]
      done = answer.keys.include?('snapshots') && answer['snapshots'].include?(shas[host])
      status = done ? 'Done' : 'Wait'
      print "* #{host}: #{status} *" unless clr
      puts "* #{host}: #{status} *" if clr
      alldone &= done
    end
    sleep(1)
  end
  puts ''
end

.snaptag_exists?(id, snaptag) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/floatyhelper/vm.rb', line 88

def self.snaptag_exists?(id, snaptag)
  data = Conf.load_data
  exists = data['snapshots'].keys.include?(id) ? data['snapshots'][id].keys.include?(snaptag) : false
end