Class: Deltacloud::Drivers::RHEVM::RHEVMDriver

Inherits:
BaseDriver
  • Object
show all
Defined in:
lib/deltacloud/drivers/rhevm/rhevm_driver.rb

Constant Summary collapse

SCRIPT_DIR = 
File.dirname(__FILE__) + '/scripts'
CONFIG = 
YAML.load_file(File.dirname(__FILE__) + '/../../../../config/rhevm_config.yml')
SCRIPT_DIR_ARG = 
'"' + SCRIPT_DIR + '"'
DELIM_BEGIN = 
"<_OUTPUT>"
DELIM_END = 
"</_OUTPUT>"
POWERSHELL = 
"c:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe"
NO_OWNER = 
""

Instance Method Summary collapse

Methods inherited from BaseDriver

#blob, #blob_data, #blobs, #bucket, #buckets, #catched_exceptions_list, #create_blob, #create_bucket, declare_feature, define_hardware_profile, define_instance_states, #delete_blob, #delete_bucket, feature, feature_decl_for, feature_decls, #features, features, #filter_hardware_profiles, #filter_on, #find_hardware_profile, #hardware_profile, hardware_profiles, #hardware_profiles, #has_collection?, #image, #instance, #instance_actions_for, instance_state_machine, #instance_state_machine, #realm, #safely, #storage_snapshot, #storage_snapshots, #storage_volume, #storage_volumes

Instance Method Details

#create_instance(credentials, image_id, opts) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 218

def create_instance(credentials, image_id, opts)
  name = opts[:name]
  name = "Inst-#{rand(10000)}" if (name.nil? or name.empty?)
  realm_id = opts[:realm_id]
  if (realm_id.nil?)
      realms = filter_on(realms(credentials, opts), :name, :name => "data")
      puts realms[0]
      realm_id = realms[0].id
  end
  vm = execute(credentials, "addVm.ps1", image_id, name, realm_id)
  vm_to_instance(vm[0])
end

#destroy_instance(credentials, image_id) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 236

def destroy_instance(credentials, image_id)
  vm = execute(credentials, "deleteVm.ps1", image_id)
  vm_to_instance(vm[0])
end

#domain_to_realm(dom) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 114

def domain_to_realm(dom)
  Realm.new({
    :id => dom["StorageId"],
    :name => dom["Name"],
    :limit => dom["AvailableDiskSize"]
  })
end

#execute(credentials, command, *args) ⇒ Object

Execute a Powershell command, and convert the output to YAML in order to get back an array of maps.



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 46

def execute(credentials, command, *args)
  args = args.to_a
  argString = genArgString(credentials, args)
  puts argString
  outputMaps = {}
  output = `#{POWERSHELL} -command "&{#{File.join(SCRIPT_DIR, command)} #{argString}; exit $LASTEXITCODE}`
  exitStatus = $?.exitstatus
  puts(output)
  puts("EXITSTATUS #{exitStatus}")
  st = output.index(DELIM_BEGIN)
  if (st)
    st += DELIM_BEGIN.length
    ed = output.index(DELIM_END)
    output = output.slice(st, (ed-st))
    # Lets make it yaml
    output.strip!
    if (output.length > 0)
      outputMaps = YAML.load(self.toYAML(output))
    end
  end
  outputMaps
end

#genArgString(credentials, args) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 69

def genArgString(credentials, args)
  commonArgs = [SCRIPT_DIR_ARG, credentials.user, credentials.password, CONFIG["domain"]]
  commonArgs.concat(args)
  commonArgs.join(" ")
end

#images(credentials, opts = nil) ⇒ Object

Images



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 128

def images(credentials, opts=nil )
  templates = []
  if (opts.nil?)
    templates = execute(credentials, "templates.ps1")
  else
    if (opts[:id])
      templates = execute(credentials, "templateById.ps1", opts[:id])
    end
  end
  images = []
  templates.each do |templ|
    images << template_to_image(templ)
  end
  images
end

#instances(credentials, opts = nil) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 176

def instances(credentials, opts=nil)
  vms = []
  if (opts.nil?)
    vms = execute(credentials, "vms.ps1")
  else
    if (opts[:id])
      vms = execute(credentials, "vmById.ps1", opts[:id])
    end
  end
  instances = []
  vms.each do |vm|
    instances << vm_to_instance(vm)
  end
  instances = filter_on( instances, :id, opts )
  instances = filter_on( instances, :state, opts )
  instances
end

#realms(credentials, opts = nil) ⇒ Object

Realms



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 101

def realms(credentials, opts=nil)
  domains = execute(credentials, "storageDomains.ps1")
  if (!opts.nil? && opts[:id])
      domains = domains.select{|d| opts[:id] == d["StorageId"]}
  end

  realms = []
  domains.each do |dom|
    realms << domain_to_realm(dom)
  end
  realms
end

#reboot_instance(credentials, image_id) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 231

def reboot_instance(credentials, image_id)
  vm = execute(credentials, "rebootVm.ps1", image_id)
  vm_to_instance(vm[0])
end

#start_instance(credentials, image_id) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 208

def start_instance(credentials, image_id)
  vm = execute(credentials, "startVm.ps1", image_id)
  vm_to_instance(vm[0])
end

#statify(state) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 83

def statify(state)
  st = state.nil? ? "" : state.upcase()
  case st
  when "UP"
    "RUNNING"
  when "DOWN"
    "STOPPED"
  when "POWERING UP"
    "PENDING"
  end
end

#stop_instance(credentials, image_id) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 213

def stop_instance(credentials, image_id)
  vm = execute(credentials, "stopVm.ps1", image_id)
  vm_to_instance(vm[0])
end

#supported_collections ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 38

def supported_collections
  DEFAULT_COLLECTIONS.reject { |c| [ :storage_volumes, :storage_snapshots ].include?(c) }
end

#template_to_image(templ) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 144

def template_to_image(templ)
  Image.new({
    :id => templ["TemplateId"],
    :name => templ["Name"],
    :description => templ["Description"],
    :architecture => templ["OperatingSystem"],
    :owner_id => NO_OWNER,
    :mem_size_md => templ["MemSizeMb"],
    :instance_count => templ["ChildCount"],
    :state => templ["Status"],
    :capacity => templ["SizeGB"]
  })
end

#toYAML(output) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 75

def toYAML(output)
  yOutput = "- \n" + output
  yOutput.gsub!(/^(\w*)[ ]*:[ ]*([A-Z0-9a-z._ -:{}]*)/,' \1: "\2"')
  yOutput.gsub!(/^[ ]*$/,"- ")
  puts(yOutput)
  yOutput
end

#vm_to_instance(vm) ⇒ Object 



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# File 'lib/deltacloud/drivers/rhevm/rhevm_driver.rb', line 194

def vm_to_instance(vm)
  Instance.new({
    :id => vm["VmId"],
    :description => vm["Description"],
    :name => vm["Name"],
    :architecture => vm["OperatingSystem"],
    :owner_id => NO_OWNER,
    :image_id => vm["TemplateId"],
    :state => statify(vm["Status"]),
    :instance_profile => InstanceProfile.new("rhevm"),
    :actions => instance_actions_for(statify(vm["Status"])),
  })
end