/var/lib/one/remotes/vmm/vmware/vmware_driver.rb is in opennebula 3.2.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright 2010-2011, C12G Labs S.L #
# #
# Licensed under the Apache License, Version 2.0 (the "License"); you may #
# not use this file except in compliance with the License. You may obtain #
# a copy of the License at #
# #
# http://www.apache.org/licenses/LICENSE-2.0 #
# #
# Unless required by applicable law or agreed to in writing, software #
# distributed under the License is distributed on an "AS IS" BASIS, #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
# See the License for the specific language governing permissions and #
# limitations under the License. #
# ---------------------------------------------------------------------------- #
require "scripts_common"
require 'yaml'
require "CommandManager"
class VMwareDriver
# -------------------------------------------------------------------------#
# Set up the environment for the driver #
# -------------------------------------------------------------------------#
ONE_LOCATION = ENV["ONE_LOCATION"]
if !ONE_LOCATION
BIN_LOCATION = "/usr/bin"
LIB_LOCATION = "/usr/lib/one"
ETC_LOCATION = "/etc/one/"
VAR_LOCATION = "/var/lib/one"
else
LIB_LOCATION = ONE_LOCATION + "/lib"
BIN_LOCATION = ONE_LOCATION + "/bin"
ETC_LOCATION = ONE_LOCATION + "/etc/"
VAR_LOCATION = ONE_LOCATION + "/var/"
end
CONF_FILE = ETC_LOCATION + "/vmwarerc"
CHECKPOINT = VAR_LOCATION + "/remotes/vmm/vmware/checkpoint"
ENV['LANG'] = 'C'
SHUTDOWN_INTERVAL = 5
SHUTDOWN_TIMEOUT = 500
def initialize(host)
conf = YAML::load(File.read(CONF_FILE))
@uri = conf[:libvirt_uri].gsub!('@HOST@', host)
@user = conf[:username]
@pass = conf[:password]
@datacenter = conf[:datacenter]
@vcenter = conf[:vcenter]
end
# ######################################################################## #
# VMWARE DRIVER ACTIONS #
# ######################################################################## #
# ------------------------------------------------------------------------ #
# Deploy & define a VM based on its description file #
# ------------------------------------------------------------------------ #
def deploy(dfile, id)
# Define the domain if it is not already defined (e.g. from UNKNOWN)
if not domain_defined?(id)
deploy_id = define_domain(dfile)
exit -1 if deploy_id.nil?
else
deploy_id = "one-#{id}"
end
OpenNebula.log_debug("Successfully defined domain #{deploy_id}.")
# Start the VM
rc, info = do_action("virsh -c #{@uri} start #{deploy_id}")
if rc == false
undefine_domain(deploy_id)
exit info
end
return deploy_id
end
# ------------------------------------------------------------------------ #
# Cancels & undefine the VM #
# ------------------------------------------------------------------------ #
def cancel(deploy_id)
# Destroy the VM
rc, info = do_action("virsh -c #{@uri} destroy #{deploy_id}")
exit info if rc == false
OpenNebula.log_debug("Successfully canceled domain #{deploy_id}.")
# Undefine the VM
undefine_domain(deploy_id)
end
# ------------------------------------------------------------------------ #
# Reboots a running VM #
# ------------------------------------------------------------------------ #
def reboot(deploy_id)
rc, info = do_action("virsh -c #{@uri} reboot #{deploy_id}")
exit info if rc == false
OpenNebula.log_debug("Domain #{deploy_id} successfully rebooted.")
end
# ------------------------------------------------------------------------ #
# Migrate #
# ------------------------------------------------------------------------ #
def migrate(deploy_id, dst_host, src_host)
src_url = "vpx://#{@vcenter}/#{@datacenter}/#{src_host}/?no_verify=1"
dst_url = "vpx://#{@vcenter}/#{@datacenter}/#{dst_host}/?no_verify=1"
mgr_cmd = "-r virsh -c #{src_url} migrate #{deploy_id} #{dst_url}"
rc, info = do_action(mgr_cmd)
exit info if rc == false
end
# ------------------------------------------------------------------------ #
# Monitor a VM #
# ------------------------------------------------------------------------ #
def poll(deploy_id)
rc, info = do_action("virsh -c #{@uri} --readonly dominfo #{deploy_id}")
return "STATE=d" if rc == false
state = ""
info.split('\n').each{ |line|
mdata = line.match("^State: (.*)")
if mdata
state = mdata[1].strip
break
end
}
case state
when "running","blocked","shutdown","dying"
state_short = 'a'
when "paused"
state_short = 'p'
when "crashed"
state_short = 'c'
else
state_short = 'd'
end
return "STATE=#{state_short}"
end
# ------------------------------------------------------------------------ #
# Restore a VM from a previously saved checkpoint #
# ------------------------------------------------------------------------ #
def restore(checkpoint)
begin
# Define the VM
dfile = File.dirname(File.dirname(checkpoint)) + "/deployment.0"
rescue => e
OpenNebula.log_error("Can not open checkpoint #{e.message}")
exit -1
end
deploy_id = define_domain(dfile)
exit -1 if deploy_id.nil?
# Revert snapshot VM
# Note: This assumes the checkpoint name is "checkpoint", to change
# this it is needed to change also [1]
#
# [1] $ONE_LOCATION/lib/remotes/vmm/vmware/checkpoint
rc, info = do_action(
"virsh -c #{@uri} snapshot-revert #{deploy_id} checkpoint")
exit info if rc == false
# Delete checkpoint
rc, info = do_action(
"virsh -c #{@uri} snapshot-delete #{deploy_id} checkpoint")
OpenNebula.log_error("Could not delete snapshot") if rc == false
end
# ------------------------------------------------------------------------ #
# Saves a VM taking a snapshot #
# ------------------------------------------------------------------------ #
def save(deploy_id)
# Take a snapshot for the VM
rc, info = do_action(
"virsh -c #{@uri} snapshot-create #{deploy_id} #{CHECKPOINT}")
exit info if rc == false
# Suspend VM
rc, info = do_action("virsh -c #{@uri} suspend #{deploy_id}")
exit info if rc == false
# Undefine VM
undefine_domain(deploy_id)
end
# ------------------------------------------------------------------------ #
# Shutdown a VM #
# ------------------------------------------------------------------------ #
def shutdown(deploy_id)
rc, info = do_action("virsh -c #{@uri} shutdown #{deploy_id}")
exit info if rc == false
counter = 0
begin
rc, info = do_action("virsh -c #{@uri} list")
info = "" if rc == false
sleep SHUTDOWN_INTERVAL
counter = counter + SHUTDOWN_INTERVAL
end while info.match(deploy_id) and counter < SHUTDOWN_TIMEOUT
if counter >= SHUTDOWN_TIMEOUT
OpenNebula.error_message(
"Timeout reached, VM #{deploy_id} is still alive")
exit - 1
end
undefine_domain(deploy_id)
end
# ######################################################################## #
# DRIVER HELPER FUNCTIONS #
# ######################################################################## #
private
#Generates an ESX command using ttyexpect
def esx_cmd(command)
cmd = "#{BIN_LOCATION}/tty_expect -u #{@user} -p #{@pass} #{command}"
end
#Performs a action usgin libvirt
def do_action(cmd, log=true)
rc = LocalCommand.run(esx_cmd(cmd))
if rc.code == 0
return [true, rc.stdout]
else
err = "Error executing: #{cmd} err: #{rc.stderr} out: #{rc.stdout}"
OpenNebula.log_error(err) if log
return [false, rc.code]
end
end
# Undefines a domain in the ESX hypervisor
def undefine_domain(id)
rc, info = do_action("virsh -c #{@uri} undefine #{id}")
if rc == false
OpenNebula.log_error("Error undefining domain #{id}")
OpenNebula.log_error("Domain #{id} has to be undefined manually")
return info
end
return 0
end
#defines a domain in the ESX hypervisor
def define_domain(dfile)
deploy_id = nil
rc, info = do_action("virsh -c #{@uri} define #{dfile}")
return nil if rc == false
info.split('\n').each{ |line|
mdata = line.match("Domain (.*) defined from (.*)")
if mdata
deploy_id = mdata[1]
break
end
}
deploy_id.strip!
return deploy_id
end
def domain_defined?(one_id)
rc, info = do_action("virsh -c #{@uri} dominfo one-#{one_id}", false)
return rc
end
end
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