1
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import xmlrpclib
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2
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import os
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3
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import hashlib
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4
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5
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try:
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6
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import xml.etree.ElementTree as ET
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7
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except ImportError:
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8
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9
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import elementtree.ElementTree as ET
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10
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11
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class OpenNebulaXMLRPCClient(object):
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12
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DEFAULT_ONE_AUTH = "~/.one/one_auth"
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14
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def __init__(self, host, port, user, password):
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uri = "http://%s:%i" % (host, port)
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self.rpc = xmlrpclib.ServerProxy(uri)
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try:
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methods = self.rpc.system.listMethods()
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except xmlrpclib.Fault, err:
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raise Exception("Cannot connect to ONE XML RPC server at %s" % uri)
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22
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if not set(["one.hostpool.info",
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"one.host.info",
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"one.vmpool.info",
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"one.vm.info"]).issubset(set(methods)):
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raise Exception("XML RPC server does not support required methods. OpenNebula 1.4 or higher is required.")
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passhash = hashlib.sha1(password).hexdigest()
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self.auth = "%s:%s" % (user, passhash)
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@staticmethod
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def get_userpass_from_env():
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if not os.environ.has_key("ONE_AUTH"):
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one_auth = OpenNebulaXMLRPCClient.DEFAULT_ONE_AUTH
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else:
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one_auth = os.environ["ONE_AUTH"]
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one_auth = os.path.expanduser(one_auth)
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41
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if not os.path.exists(one_auth):
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raise Exception("Authorization file %s does not exists" % one_auth)
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f = open(one_auth, "r")
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try:
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line = f.readline().strip()
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user, passw = line.split(":")
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return user, passw
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except:
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raise Exception("Authorization file is malformed")
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52
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def hostpool_info(self):
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try:
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(rc, value) = self.rpc.one.hostpool.info(self.auth)
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if rc == False:
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raise Exception("ONE reported an error: %s" % value)
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else:
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hosts = OpenNebulaHost.from_hostpool_xml(value)
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return hosts
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except xmlrpclib.Fault, err:
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raise Exception("XMLRPC fault: %s" % err.faultString)
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def host_info(self, hid):
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try:
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(rc, value) = self.rpc.one.host.info(self.auth, hid)
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if rc == False:
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raise Exception("ONE reported an error: %s" % value)
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else:
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host = OpenNebulaHost.from_host_xml(value)
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return host
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except xmlrpclib.Fault, err:
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raise Exception("XMLRPC fault: %s" % err.faultString)
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def vmpool_info(self):
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try:
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(rc, value) = self.rpc.one.vmpool.info(self.auth, -2)
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if rc == False:
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raise Exception("ONE reported an error: %s" % value)
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else:
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hosts = OpenNebulaVM.from_vmpool_xml(value)
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return hosts
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except xmlrpclib.Fault, err:
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raise Exception("XMLRPC fault: %s" % err.faultString)
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def vm_info(self, id):
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try:
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(rc, value) = self.rpc.one.vm.info(self.auth, id)
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if rc == False:
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raise Exception("ONE reported an error: %s" % value)
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else:
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host = OpenNebulaVM.from_vm_xml(value)
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return host
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except xmlrpclib.Fault, err:
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raise Exception("XMLRPC fault: %s" % err.faultString)
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def vm_deploy(self, vid, hid):
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try:
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rv = self.rpc.one.vm.deploy(self.auth, vid, hid)
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if rv[0] == False:
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raise Exception("ONE reported an error: %s" % rv[1])
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else:
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return
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except xmlrpclib.Fault, err:
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raise Exception("XMLRPC fault: %s" % err.faultString)
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def vm_action(self, action, vid):
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if not action in ["shutdown", "hold", "release", "stop",
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"cancel", "suspend", "resume", "restart",
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"finalize" ]:
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raise Exception("%s is not a valid action" % action)
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try:
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rv = self.rpc.one.vm.action(self.auth, action, vid)
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if rv[0] == False:
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raise Exception("ONE reported an error: %s" % rv[1])
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else:
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return
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except xmlrpclib.Fault, err:
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raise Exception("XMLRPC fault: %s" % err.faultString)
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def vm_shutdown(self, vid):
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return self.vm_action("shutdown", vid)
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def vm_hold(self, vid):
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return self.vm_action("hold", vid)
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def vm_release(self, vid):
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return self.vm_action("release", vid)
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def vm_stop(self, vid):
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return self.vm_action("stop", vid)
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def vm_cancel(self, vid):
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return self.vm_action("cancel", vid)
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def vm_suspend(self, vid):
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return self.vm_action("suspend", vid)
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def vm_resume(self, vid):
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return self.vm_action("resume", vid)
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def vm_restart(self, vid):
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return self.vm_action("restart", vid)
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def vm_finalize(self, vid):
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return self.vm_action("finalize", vid)
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147
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148
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149
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class OpenNebulaHost(object):
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150
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STATE_INIT = 0
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STATE_MONITORING = 1
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STATE_MONITORED = 2
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154
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STATE_ERROR = 3
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155
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STATE_DISABLED = 4
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156
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157
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158
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def __init__(self, host_element):
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self.id = int(host_element.find("ID").text)
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160
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self.name = host_element.find("NAME").text
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161
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self.state = int(host_element.find("STATE").text)
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162
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self.im_mad = host_element.find("IM_MAD").text
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163
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self.vm_mad = host_element.find("VM_MAD").text
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164
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self.tm_mad = host_element.find("TM_MAD").text
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self.last_mon_time = int(host_element.find("LAST_MON_TIME").text)
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166
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167
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host_share_element = host_element.find("HOST_SHARE")
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168
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169
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self.disk_usage = int(host_share_element.find("DISK_USAGE").text)
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self.mem_usage = int(host_share_element.find("MEM_USAGE").text)
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self.cpu_usage = int(host_share_element.find("CPU_USAGE").text)
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self.max_disk = int(host_share_element.find("MAX_DISK").text)
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self.max_mem = int(host_share_element.find("MAX_MEM").text)
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self.max_cpu = int(host_share_element.find("MAX_CPU").text)
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self.free_disk = int(host_share_element.find("FREE_DISK").text)
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self.free_mem = int(host_share_element.find("FREE_MEM").text)
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self.free_cpu = int(host_share_element.find("FREE_CPU").text)
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self.used_disk = int(host_share_element.find("USED_DISK").text)
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self.used_mem = int(host_share_element.find("USED_MEM").text)
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180
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self.used_cpu = int(host_share_element.find("USED_CPU").text)
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self.running_vms = int(host_share_element.find("RUNNING_VMS").text)
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182
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183
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self.template = parse_template(host_element.find("TEMPLATE"))
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184
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|
185
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186
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@classmethod
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187
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def from_host_xml(cls, xmlstr):
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188
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host_element = ET.fromstring(xmlstr)
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189
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return cls(host_element)
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190
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|
191
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@classmethod
|
192
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def from_hostpool_xml(cls, xmlstr):
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193
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hostpool_element = ET.fromstring(xmlstr)
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194
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host_elements = hostpool_element.findall("HOST")
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195
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return [cls(host_element) for host_element in host_elements]
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196
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|
197
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class OpenNebulaVM(object):
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198
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|
199
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STATE_INIT = 0
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200
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STATE_PENDING = 1
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201
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STATE_HOLD = 2
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202
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STATE_ACTIVE = 3
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203
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STATE_STOPPED = 4
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204
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STATE_SUSPENDED = 5
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205
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STATE_DONE = 6
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206
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STATE_FAILED = 7
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207
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|
208
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LCMSTATE_LCM_INIT = 0
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209
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LCMSTATE_PROLOG = 1
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210
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LCMSTATE_BOOT = 2
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211
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LCMSTATE_RUNNING = 3
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212
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LCMSTATE_MIGRATE = 4
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213
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LCMSTATE_SAVE_STOP = 5
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214
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LCMSTATE_SAVE_SUSPEND = 6
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215
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LCMSTATE_SAVE_MIGRATE = 7
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216
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LCMSTATE_PROLOG_MIGRATE = 8
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217
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LCMSTATE_PROLOG_RESUME = 9
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218
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LCMSTATE_EPILOG_STOP = 10
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219
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LCMSTATE_EPILOG = 11
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220
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LCMSTATE_SHUTDOWN = 12
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221
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LCMSTATE_CANCEL = 13
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222
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LCMSTATE_FAILURE = 14
|
223
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LCMSTATE_DELETE = 15
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224
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LCMSTATE_UNKNOWN = 16
|
225
|
|
226
|
|
227
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def __init__(self, vm_element):
|
228
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self.id = int(vm_element.find("ID").text)
|
229
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self.uid = int(vm_element.find("UID").text)
|
230
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username_element = vm_element.find("USERNAME")
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231
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if username_element == None:
|
232
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self.username = None
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233
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else:
|
234
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self.username = username_element.text
|
235
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self.name = vm_element.find("NAME").text
|
236
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self.last_poll = int(vm_element.find("LAST_POLL").text)
|
237
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self.state = int(vm_element.find("STATE").text)
|
238
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self.lcm_state = int(vm_element.find("LCM_STATE").text)
|
239
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self.stime = int(vm_element.find("STIME").text)
|
240
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self.etime = int(vm_element.find("ETIME").text)
|
241
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deploy_id = vm_element.find("DEPLOY_ID").text
|
242
|
if deploy_id == None:
|
243
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self.deploy_id = None
|
244
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else:
|
245
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self.deploy_id = deploy_id
|
246
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self.memory = int(vm_element.find("MEMORY").text)
|
247
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self.cpu = int(vm_element.find("CPU").text)
|
248
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self.net_tx = int(vm_element.find("NET_TX").text)
|
249
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self.net_rx = int(vm_element.find("NET_RX").text)
|
250
|
|
251
|
self.template = parse_template(vm_element.find("TEMPLATE"))
|
252
|
|
253
|
|
254
|
@classmethod
|
255
|
def from_vm_xml(cls, xmlstr):
|
256
|
vm_element = ET.fromstring(xmlstr)
|
257
|
return cls(vm_element)
|
258
|
|
259
|
@classmethod
|
260
|
def from_vmpool_xml(cls, xmlstr):
|
261
|
vmpool_element = ET.fromstring(xmlstr)
|
262
|
vm_elements = vmpool_element.findall("VM")
|
263
|
return [cls(vm_element) for vm_element in vm_elements]
|
264
|
|
265
|
def parse_template(template_element):
|
266
|
template = {}
|
267
|
if template_element != None:
|
268
|
for subelement in template_element:
|
269
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name = subelement.tag
|
270
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if len(subelement) == 0:
|
271
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template[name] = subelement.text
|
272
|
else:
|
273
|
template[name] = {}
|
274
|
for subsubelement in subelement:
|
275
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template[name][subsubelement.tag] = subsubelement.text
|
276
|
|
277
|
return template
|
278
|
|