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#
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#
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Remote API resource implementations.
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PUT or POST?
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============
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According to RFC2616 the main difference between PUT and POST is that
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POST can create new resources but PUT can only create the resource the
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URI was pointing to on the PUT request.
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In the context of this module POST on ``/2/instances`` to change an existing
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entity is legitimate, while PUT would not be. PUT creates a new entity (e.g. a
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new instance) with a name specified in the request.
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Quoting from RFC2616, section 9.6::
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  The fundamental difference between the POST and PUT requests is reflected in
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  the different meaning of the Request-URI. The URI in a POST request
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  identifies the resource that will handle the enclosed entity. That resource
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  might be a data-accepting process, a gateway to some other protocol, or a
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  separate entity that accepts annotations. In contrast, the URI in a PUT
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  request identifies the entity enclosed with the request -- the user agent
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  knows what URI is intended and the server MUST NOT attempt to apply the
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  request to some other resource. If the server desires that the request be
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  applied to a different URI, it MUST send a 301 (Moved Permanently) response;
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  the user agent MAY then make its own decision regarding whether or not to
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  redirect the request.
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So when adding new methods, if they are operating on the URI entity itself,
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PUT should be prefered over POST.
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"""
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# pylint: disable=C0103
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# C0103: Invalid name, since the R_* names are not conforming
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from ganeti import opcodes
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from ganeti import objects
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from ganeti import http
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from ganeti import constants
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from ganeti import cli
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from ganeti import rapi
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from ganeti import ht
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from ganeti import compat
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from ganeti import ssconf
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from ganeti.rapi import baserlib
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_COMMON_FIELDS = ["ctime", "mtime", "uuid", "serial_no", "tags"]
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I_FIELDS = ["name", "admin_state", "os",
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            "pnode", "snodes",
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            "disk_template",
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            "nic.ips", "nic.macs", "nic.modes",
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            "nic.links", "nic.networks", "nic.bridges",
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            "network_port",
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            "disk.sizes", "disk_usage",
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            "beparams", "hvparams",
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            "oper_state", "oper_ram", "oper_vcpus", "status",
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            "custom_hvparams", "custom_beparams", "custom_nicparams",
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            ] + _COMMON_FIELDS
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N_FIELDS = ["name", "offline", "master_candidate", "drained",
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            "dtotal", "dfree",
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            "mtotal", "mnode", "mfree",
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            "pinst_cnt", "sinst_cnt",
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            "ctotal", "cnodes", "csockets",
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            "pip", "sip", "role",
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            "pinst_list", "sinst_list",
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            "master_capable", "vm_capable",
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            "ndparams",
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            "group.uuid",
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            ] + _COMMON_FIELDS
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NET_FIELDS = ["name", "network", "gateway",
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              "network6", "gateway6",
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              "mac_prefix", "network_type",
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              "free_count", "reserved_count",
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              "map", "group_list", "inst_list",
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              "external_reservations", "tags",
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             ] 
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G_FIELDS = [
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  "alloc_policy",
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  "name",
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  "node_cnt",
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  "node_list",
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  "ipolicy",
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  "custom_ipolicy",
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  "diskparams",
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  "custom_diskparams",
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  "ndparams",
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  "custom_ndparams",
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  ] + _COMMON_FIELDS
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J_FIELDS_BULK = [
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  "id", "ops", "status", "summary",
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  "opstatus",
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  "received_ts", "start_ts", "end_ts",
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  ]
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J_FIELDS = J_FIELDS_BULK + [
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  "oplog",
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  "opresult",
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  ]
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_NR_DRAINED = "drained"
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_NR_MASTER_CANDIDATE = "master-candidate"
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_NR_MASTER = "master"
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_NR_OFFLINE = "offline"
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_NR_REGULAR = "regular"
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_NR_MAP = {
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  constants.NR_MASTER: _NR_MASTER,
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  constants.NR_MCANDIDATE: _NR_MASTER_CANDIDATE,
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  constants.NR_DRAINED: _NR_DRAINED,
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  constants.NR_OFFLINE: _NR_OFFLINE,
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  constants.NR_REGULAR: _NR_REGULAR,
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  }
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assert frozenset(_NR_MAP.keys()) == constants.NR_ALL
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# Request data version field
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_REQ_DATA_VERSION = "__version__"
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# Feature string for instance creation request data version 1
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_INST_CREATE_REQV1 = "instance-create-reqv1"
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# Feature string for instance reinstall request version 1
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_INST_REINSTALL_REQV1 = "instance-reinstall-reqv1"
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# Feature string for node migration version 1
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_NODE_MIGRATE_REQV1 = "node-migrate-reqv1"
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# Feature string for node evacuation with LU-generated jobs
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_NODE_EVAC_RES1 = "node-evac-res1"
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ALL_FEATURES = frozenset([
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  _INST_CREATE_REQV1,
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  _INST_REINSTALL_REQV1,
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  _NODE_MIGRATE_REQV1,
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  _NODE_EVAC_RES1,
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  ])
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# Timeout for /2/jobs/[job_id]/wait. Gives job up to 10 seconds to change.
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_WFJC_TIMEOUT = 10
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# FIXME: For compatibility we update the beparams/memory field. Needs to be
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#        removed in Ganeti 2.7
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def _UpdateBeparams(inst):
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  """Updates the beparams dict of inst to support the memory field.
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  @param inst: Inst dict
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  @return: Updated inst dict
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177
  """
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  beparams = inst["beparams"]
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  beparams[constants.BE_MEMORY] = beparams[constants.BE_MAXMEM]
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  return inst
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class R_root(baserlib.ResourceBase):
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  """/ resource.
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187
  """
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  @staticmethod
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  def GET():
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    """Supported for legacy reasons.
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192
    """
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    return None
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195

    
196
class R_2(R_root):
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  """/2 resource.
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199
  """
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201

    
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class R_version(baserlib.ResourceBase):
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  """/version resource.
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  This resource should be used to determine the remote API version and
206
  to adapt clients accordingly.
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208
  """
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  @staticmethod
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  def GET():
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    """Returns the remote API version.
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213
    """
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    return constants.RAPI_VERSION
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class R_2_info(baserlib.OpcodeResource):
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  """/2/info resource.
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220
  """
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  GET_OPCODE = opcodes.OpClusterQuery
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223
  def GET(self):
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    """Returns cluster information.
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226
    """
227
    client = self.GetClient(query=True)
228
    return client.QueryClusterInfo()
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class R_2_features(baserlib.ResourceBase):
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  """/2/features resource.
233

234
  """
235
  @staticmethod
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  def GET():
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    """Returns list of optional RAPI features implemented.
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239
    """
240
    return list(ALL_FEATURES)
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class R_2_os(baserlib.OpcodeResource):
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  """/2/os resource.
245

246
  """
247
  GET_OPCODE = opcodes.OpOsDiagnose
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249
  def GET(self):
250
    """Return a list of all OSes.
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    Can return error 500 in case of a problem.
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254
    Example: ["debian-etch"]
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256
    """
257
    cl = self.GetClient()
258
    op = opcodes.OpOsDiagnose(output_fields=["name", "variants"], names=[])
259
    job_id = self.SubmitJob([op], cl=cl)
260
    # we use custom feedback function, instead of print we log the status
261
    result = cli.PollJob(job_id, cl, feedback_fn=baserlib.FeedbackFn)
262
    diagnose_data = result[0]
263

    
264
    if not isinstance(diagnose_data, list):
265
      raise http.HttpBadGateway(message="Can't get OS list")
266

    
267
    os_names = []
268
    for (name, variants) in diagnose_data:
269
      os_names.extend(cli.CalculateOSNames(name, variants))
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271
    return os_names
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class R_2_redist_config(baserlib.OpcodeResource):
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  """/2/redistribute-config resource.
276

277
  """
278
  PUT_OPCODE = opcodes.OpClusterRedistConf
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280

    
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class R_2_cluster_modify(baserlib.OpcodeResource):
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  """/2/modify resource.
283

284
  """
285
  PUT_OPCODE = opcodes.OpClusterSetParams
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287

    
288
class R_2_jobs(baserlib.ResourceBase):
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  """/2/jobs resource.
290

291
  """
292
  def GET(self):
293
    """Returns a dictionary of jobs.
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    @return: a dictionary with jobs id and uri.
296

297
    """
298
    client = self.GetClient()
299

    
300
    if self.useBulk():
301
      bulkdata = client.QueryJobs(None, J_FIELDS_BULK)
302
      return baserlib.MapBulkFields(bulkdata, J_FIELDS_BULK)
303
    else:
304
      jobdata = map(compat.fst, client.QueryJobs(None, ["id"]))
305
      return baserlib.BuildUriList(jobdata, "/2/jobs/%s",
306
                                   uri_fields=("id", "uri"))
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308

    
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class R_2_jobs_id(baserlib.ResourceBase):
310
  """/2/jobs/[job_id] resource.
311

312
  """
313
  def GET(self):
314
    """Returns a job status.
315

316
    @return: a dictionary with job parameters.
317
        The result includes:
318
            - id: job ID as a number
319
            - status: current job status as a string
320
            - ops: involved OpCodes as a list of dictionaries for each
321
              opcodes in the job
322
            - opstatus: OpCodes status as a list
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            - opresult: OpCodes results as a list of lists
324

325
    """
326
    job_id = self.items[0]
327
    result = self.GetClient().QueryJobs([job_id, ], J_FIELDS)[0]
328
    if result is None:
329
      raise http.HttpNotFound()
330
    return baserlib.MapFields(J_FIELDS, result)
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332
  def DELETE(self):
333
    """Cancel not-yet-started job.
334

335
    """
336
    job_id = self.items[0]
337
    result = self.GetClient().CancelJob(job_id)
338
    return result
339

    
340

    
341
class R_2_jobs_id_wait(baserlib.ResourceBase):
342
  """/2/jobs/[job_id]/wait resource.
343

344
  """
345
  # WaitForJobChange provides access to sensitive information and blocks
346
  # machine resources (it's a blocking RAPI call), hence restricting access.
347
  GET_ACCESS = [rapi.RAPI_ACCESS_WRITE]
348

    
349
  def GET(self):
350
    """Waits for job changes.
351

352
    """
353
    job_id = self.items[0]
354

    
355
    fields = self.getBodyParameter("fields")
356
    prev_job_info = self.getBodyParameter("previous_job_info", None)
357
    prev_log_serial = self.getBodyParameter("previous_log_serial", None)
358

    
359
    if not isinstance(fields, list):
360
      raise http.HttpBadRequest("The 'fields' parameter should be a list")
361

    
362
    if not (prev_job_info is None or isinstance(prev_job_info, list)):
363
      raise http.HttpBadRequest("The 'previous_job_info' parameter should"
364
                                " be a list")
365

    
366
    if not (prev_log_serial is None or
367
            isinstance(prev_log_serial, (int, long))):
368
      raise http.HttpBadRequest("The 'previous_log_serial' parameter should"
369
                                " be a number")
370

    
371
    client = self.GetClient()
372
    result = client.WaitForJobChangeOnce(job_id, fields,
373
                                         prev_job_info, prev_log_serial,
374
                                         timeout=_WFJC_TIMEOUT)
375
    if not result:
376
      raise http.HttpNotFound()
377

    
378
    if result == constants.JOB_NOTCHANGED:
379
      # No changes
380
      return None
381

    
382
    (job_info, log_entries) = result
383

    
384
    return {
385
      "job_info": job_info,
386
      "log_entries": log_entries,
387
      }
388

    
389

    
390
class R_2_nodes(baserlib.OpcodeResource):
391
  """/2/nodes resource.
392

393
  """
394
  GET_OPCODE = opcodes.OpNodeQuery
395

    
396
  def GET(self):
397
    """Returns a list of all nodes.
398

399
    """
400
    client = self.GetClient(query=True)
401

    
402
    if self.useBulk():
403
      bulkdata = client.QueryNodes([], N_FIELDS, False)
404
      return baserlib.MapBulkFields(bulkdata, N_FIELDS)
405
    else:
406
      nodesdata = client.QueryNodes([], ["name"], False)
407
      nodeslist = [row[0] for row in nodesdata]
408
      return baserlib.BuildUriList(nodeslist, "/2/nodes/%s",
409
                                   uri_fields=("id", "uri"))
410

    
411

    
412
class R_2_nodes_name(baserlib.OpcodeResource):
413
  """/2/nodes/[node_name] resource.
414

415
  """
416
  GET_OPCODE = opcodes.OpNodeQuery
417

    
418
  def GET(self):
419
    """Send information about a node.
420

421
    """
422
    node_name = self.items[0]
423
    client = self.GetClient(query=True)
424

    
425
    result = baserlib.HandleItemQueryErrors(client.QueryNodes,
426
                                            names=[node_name], fields=N_FIELDS,
427
                                            use_locking=self.useLocking())
428

    
429
    return baserlib.MapFields(N_FIELDS, result[0])
430

    
431

    
432
class R_2_nodes_name_powercycle(baserlib.OpcodeResource):
433
  """/2/nodes/[node_name]/powercycle resource.
434

435
  """
436
  POST_OPCODE = opcodes.OpNodePowercycle
437

    
438
  def GetPostOpInput(self):
439
    """Tries to powercycle a node.
440

441
    """
442
    return (self.request_body, {
443
      "node_name": self.items[0],
444
      "force": self.useForce(),
445
      })
446

    
447

    
448
class R_2_nodes_name_role(baserlib.OpcodeResource):
449
  """/2/nodes/[node_name]/role resource.
450

451
  """
452
  PUT_OPCODE = opcodes.OpNodeSetParams
453

    
454
  def GET(self):
455
    """Returns the current node role.
456

457
    @return: Node role
458

459
    """
460
    node_name = self.items[0]
461
    client = self.GetClient(query=True)
462
    result = client.QueryNodes(names=[node_name], fields=["role"],
463
                               use_locking=self.useLocking())
464

    
465
    return _NR_MAP[result[0][0]]
466

    
467
  def GetPutOpInput(self):
468
    """Sets the node role.
469

470
    """
471
    baserlib.CheckType(self.request_body, basestring, "Body contents")
472

    
473
    role = self.request_body
474

    
475
    if role == _NR_REGULAR:
476
      candidate = False
477
      offline = False
478
      drained = False
479

    
480
    elif role == _NR_MASTER_CANDIDATE:
481
      candidate = True
482
      offline = drained = None
483

    
484
    elif role == _NR_DRAINED:
485
      drained = True
486
      candidate = offline = None
487

    
488
    elif role == _NR_OFFLINE:
489
      offline = True
490
      candidate = drained = None
491

    
492
    else:
493
      raise http.HttpBadRequest("Can't set '%s' role" % role)
494

    
495
    assert len(self.items) == 1
496

    
497
    return ({}, {
498
      "node_name": self.items[0],
499
      "master_candidate": candidate,
500
      "offline": offline,
501
      "drained": drained,
502
      "force": self.useForce(),
503
      "auto_promote": bool(self._checkIntVariable("auto-promote", default=0)),
504
      })
505

    
506

    
507
class R_2_nodes_name_evacuate(baserlib.OpcodeResource):
508
  """/2/nodes/[node_name]/evacuate resource.
509

510
  """
511
  POST_OPCODE = opcodes.OpNodeEvacuate
512

    
513
  def GetPostOpInput(self):
514
    """Evacuate all instances off a node.
515

516
    """
517
    return (self.request_body, {
518
      "node_name": self.items[0],
519
      "dry_run": self.dryRun(),
520
      })
521

    
522

    
523
class R_2_nodes_name_migrate(baserlib.OpcodeResource):
524
  """/2/nodes/[node_name]/migrate resource.
525

526
  """
527
  POST_OPCODE = opcodes.OpNodeMigrate
528

    
529
  def GetPostOpInput(self):
530
    """Migrate all primary instances from a node.
531

532
    """
533
    if self.queryargs:
534
      # Support old-style requests
535
      if "live" in self.queryargs and "mode" in self.queryargs:
536
        raise http.HttpBadRequest("Only one of 'live' and 'mode' should"
537
                                  " be passed")
538

    
539
      if "live" in self.queryargs:
540
        if self._checkIntVariable("live", default=1):
541
          mode = constants.HT_MIGRATION_LIVE
542
        else:
543
          mode = constants.HT_MIGRATION_NONLIVE
544
      else:
545
        mode = self._checkStringVariable("mode", default=None)
546

    
547
      data = {
548
        "mode": mode,
549
        }
550
    else:
551
      data = self.request_body
552

    
553
    return (data, {
554
      "node_name": self.items[0],
555
      })
556

    
557

    
558
class R_2_nodes_name_modify(baserlib.OpcodeResource):
559
  """/2/nodes/[node_name]/modify resource.
560

561
  """
562
  POST_OPCODE = opcodes.OpNodeSetParams
563

    
564
  def GetPostOpInput(self):
565
    """Changes parameters of a node.
566

567
    """
568
    assert len(self.items) == 1
569

    
570
    return (self.request_body, {
571
      "node_name": self.items[0],
572
      })
573

    
574

    
575
class R_2_nodes_name_storage(baserlib.OpcodeResource):
576
  """/2/nodes/[node_name]/storage resource.
577

578
  """
579
  # LUNodeQueryStorage acquires locks, hence restricting access to GET
580
  GET_ACCESS = [rapi.RAPI_ACCESS_WRITE]
581
  GET_OPCODE = opcodes.OpNodeQueryStorage
582

    
583
  def GetGetOpInput(self):
584
    """List storage available on a node.
585

586
    """
587
    storage_type = self._checkStringVariable("storage_type", None)
588
    output_fields = self._checkStringVariable("output_fields", None)
589

    
590
    if not output_fields:
591
      raise http.HttpBadRequest("Missing the required 'output_fields'"
592
                                " parameter")
593

    
594
    return ({}, {
595
      "nodes": [self.items[0]],
596
      "storage_type": storage_type,
597
      "output_fields": output_fields.split(","),
598
      })
599

    
600

    
601
class R_2_nodes_name_storage_modify(baserlib.OpcodeResource):
602
  """/2/nodes/[node_name]/storage/modify resource.
603

604
  """
605
  PUT_OPCODE = opcodes.OpNodeModifyStorage
606

    
607
  def GetPutOpInput(self):
608
    """Modifies a storage volume on a node.
609

610
    """
611
    storage_type = self._checkStringVariable("storage_type", None)
612
    name = self._checkStringVariable("name", None)
613

    
614
    if not name:
615
      raise http.HttpBadRequest("Missing the required 'name'"
616
                                " parameter")
617

    
618
    changes = {}
619

    
620
    if "allocatable" in self.queryargs:
621
      changes[constants.SF_ALLOCATABLE] = \
622
        bool(self._checkIntVariable("allocatable", default=1))
623

    
624
    return ({}, {
625
      "node_name": self.items[0],
626
      "storage_type": storage_type,
627
      "name": name,
628
      "changes": changes,
629
      })
630

    
631

    
632
class R_2_nodes_name_storage_repair(baserlib.OpcodeResource):
633
  """/2/nodes/[node_name]/storage/repair resource.
634

635
  """
636
  PUT_OPCODE = opcodes.OpRepairNodeStorage
637

    
638
  def GetPutOpInput(self):
639
    """Repairs a storage volume on a node.
640

641
    """
642
    storage_type = self._checkStringVariable("storage_type", None)
643
    name = self._checkStringVariable("name", None)
644
    if not name:
645
      raise http.HttpBadRequest("Missing the required 'name'"
646
                                " parameter")
647

    
648
    return ({}, {
649
      "node_name": self.items[0],
650
      "storage_type": storage_type,
651
      "name": name,
652
      })
653

    
654

    
655
class R_2_networks(baserlib.OpcodeResource):
656
  """/2/networks resource.
657

658
  """
659
  GET_OPCODE = opcodes.OpNetworkQuery
660
  POST_OPCODE = opcodes.OpNetworkAdd
661
  POST_RENAME = {
662
    "name": "network_name",
663
    }
664

    
665
  def GetPostOpInput(self):
666
    """Create a network.
667

668
    """
669
    assert not self.items
670
    return (self.request_body, {
671
      "dry_run": self.dryRun(),
672
      })
673

    
674
  def GET(self):
675
    """Returns a list of all networks.
676

677
    """
678
    client = self.GetClient()
679

    
680
    if self.useBulk():
681
      bulkdata = client.QueryNetworks([], NET_FIELDS, False)
682
      return baserlib.MapBulkFields(bulkdata, NET_FIELDS)
683
    else:
684
      data = client.QueryNetworks([], ["name"], False)
685
      networknames = [row[0] for row in data]
686
      return baserlib.BuildUriList(networknames, "/2/networks/%s",
687
                                   uri_fields=("name", "uri"))
688

    
689

    
690
class R_2_networks_name(baserlib.OpcodeResource):
691
  """/2/networks/[network_name] resource.
692

693
  """
694
  DELETE_OPCODE = opcodes.OpNetworkRemove
695

    
696
  def GET(self):
697
    """Send information about a network.
698

699
    """
700
    network_name = self.items[0]
701
    client = self.GetClient()
702

    
703
    result = baserlib.HandleItemQueryErrors(client.QueryNetworks,
704
                                            names=[network_name],
705
                                            fields=NET_FIELDS,
706
                                            use_locking=self.useLocking())
707

    
708
    return baserlib.MapFields(NET_FIELDS, result[0])
709

    
710
  def GetDeleteOpInput(self):
711
    """Delete a network.
712

713
    """
714
    assert len(self.items) == 1
715
    return (self.request_body, {
716
      "network_name": self.items[0],
717
      "dry_run": self.dryRun(),
718
      })
719

    
720
class R_2_networks_name_connect(baserlib.OpcodeResource):
721
  """/2/networks/[network_name]/connect resource.
722

723
  """
724
  PUT_OPCODE = opcodes.OpNetworkConnect
725

    
726
  def GetPutOpInput(self):
727
    """Changes some parameters of node group.
728

729
    """
730
    assert self.items
731
    return (self.request_body, {
732
      "network_name": self.items[0],
733
      "dry_run": self.dryRun(),
734
      })
735

    
736
class R_2_networks_name_disconnect(baserlib.OpcodeResource):
737
  """/2/networks/[network_name]/disconnect resource.
738

739
  """
740
  PUT_OPCODE = opcodes.OpNetworkDisconnect
741

    
742
  def GetPutOpInput(self):
743
    """Changes some parameters of node group.
744

745
    """
746
    assert self.items
747
    return (self.request_body, {
748
      "network_name": self.items[0],
749
      "dry_run": self.dryRun(),
750
      })
751

    
752
class R_2_networks_name_modify(baserlib.OpcodeResource):
753
  """/2/networks/[network_name]/modify resource.
754

755
  """
756
  PUT_OPCODE = opcodes.OpNetworkSetParams
757

    
758
  def GetPutOpInput(self):
759
    """Changes some parameters of network.
760

761
    """
762
    assert self.items
763
    return (self.request_body, {
764
      "network_name": self.items[0],
765
      })
766

    
767

    
768
class R_2_groups(baserlib.OpcodeResource):
769
  """/2/groups resource.
770

771
  """
772
  GET_OPCODE = opcodes.OpGroupQuery
773
  POST_OPCODE = opcodes.OpGroupAdd
774
  POST_RENAME = {
775
    "name": "group_name",
776
    }
777

    
778
  def GetPostOpInput(self):
779
    """Create a node group.
780

781

782
    """
783
    assert not self.items
784
    return (self.request_body, {
785
      "dry_run": self.dryRun(),
786
      })
787

    
788
  def GET(self):
789
    """Returns a list of all node groups.
790

791
    """
792
    client = self.GetClient(query=True)
793

    
794
    if self.useBulk():
795
      bulkdata = client.QueryGroups([], G_FIELDS, False)
796
      return baserlib.MapBulkFields(bulkdata, G_FIELDS)
797
    else:
798
      data = client.QueryGroups([], ["name"], False)
799
      groupnames = [row[0] for row in data]
800
      return baserlib.BuildUriList(groupnames, "/2/groups/%s",
801
                                   uri_fields=("name", "uri"))
802

    
803

    
804
class R_2_groups_name(baserlib.OpcodeResource):
805
  """/2/groups/[group_name] resource.
806

807
  """
808
  DELETE_OPCODE = opcodes.OpGroupRemove
809

    
810
  def GET(self):
811
    """Send information about a node group.
812

813
    """
814
    group_name = self.items[0]
815
    client = self.GetClient(query=True)
816

    
817
    result = baserlib.HandleItemQueryErrors(client.QueryGroups,
818
                                            names=[group_name], fields=G_FIELDS,
819
                                            use_locking=self.useLocking())
820

    
821
    return baserlib.MapFields(G_FIELDS, result[0])
822

    
823
  def GetDeleteOpInput(self):
824
    """Delete a node group.
825

826
    """
827
    assert len(self.items) == 1
828
    return ({}, {
829
      "group_name": self.items[0],
830
      "dry_run": self.dryRun(),
831
      })
832

    
833

    
834
class R_2_groups_name_modify(baserlib.OpcodeResource):
835
  """/2/groups/[group_name]/modify resource.
836

837
  """
838
  PUT_OPCODE = opcodes.OpGroupSetParams
839

    
840
  def GetPutOpInput(self):
841
    """Changes some parameters of node group.
842

843
    """
844
    assert self.items
845
    return (self.request_body, {
846
      "group_name": self.items[0],
847
      })
848

    
849

    
850
class R_2_groups_name_rename(baserlib.OpcodeResource):
851
  """/2/groups/[group_name]/rename resource.
852

853
  """
854
  PUT_OPCODE = opcodes.OpGroupRename
855

    
856
  def GetPutOpInput(self):
857
    """Changes the name of a node group.
858

859
    """
860
    assert len(self.items) == 1
861
    return (self.request_body, {
862
      "group_name": self.items[0],
863
      "dry_run": self.dryRun(),
864
      })
865

    
866

    
867
class R_2_groups_name_assign_nodes(baserlib.OpcodeResource):
868
  """/2/groups/[group_name]/assign-nodes resource.
869

870
  """
871
  PUT_OPCODE = opcodes.OpGroupAssignNodes
872

    
873
  def GetPutOpInput(self):
874
    """Assigns nodes to a group.
875

876
    """
877
    assert len(self.items) == 1
878
    return (self.request_body, {
879
      "group_name": self.items[0],
880
      "dry_run": self.dryRun(),
881
      "force": self.useForce(),
882
      })
883

    
884

    
885
class R_2_instances(baserlib.OpcodeResource):
886
  """/2/instances resource.
887

888
  """
889
  GET_OPCODE = opcodes.OpInstanceQuery
890
  POST_OPCODE = opcodes.OpInstanceCreate
891
  POST_RENAME = {
892
    "os": "os_type",
893
    "name": "instance_name",
894
    }
895

    
896
  def GET(self):
897
    """Returns a list of all available instances.
898

899
    """
900
    client = self.GetClient()
901

    
902
    use_locking = self.useLocking()
903
    if self.useBulk():
904
      bulkdata = client.QueryInstances([], I_FIELDS, use_locking)
905
      return map(_UpdateBeparams, baserlib.MapBulkFields(bulkdata, I_FIELDS))
906
    else:
907
      instancesdata = client.QueryInstances([], ["name"], use_locking)
908
      instanceslist = [row[0] for row in instancesdata]
909
      return baserlib.BuildUriList(instanceslist, "/2/instances/%s",
910
                                   uri_fields=("id", "uri"))
911

    
912
  def GetPostOpInput(self):
913
    """Create an instance.
914

915
    @return: a job id
916

917
    """
918
    baserlib.CheckType(self.request_body, dict, "Body contents")
919

    
920
    # Default to request data version 0
921
    data_version = self.getBodyParameter(_REQ_DATA_VERSION, 0)
922

    
923
    if data_version == 0:
924
      raise http.HttpBadRequest("Instance creation request version 0 is no"
925
                                " longer supported")
926
    elif data_version != 1:
927
      raise http.HttpBadRequest("Unsupported request data version %s" %
928
                                data_version)
929

    
930
    data = self.request_body.copy()
931
    # Remove "__version__"
932
    data.pop(_REQ_DATA_VERSION, None)
933

    
934
    return (data, {
935
      "dry_run": self.dryRun(),
936
      })
937

    
938

    
939
class R_2_instances_multi_alloc(baserlib.OpcodeResource):
940
  """/2/instances-multi-alloc resource.
941

942
  """
943
  POST_OPCODE = opcodes.OpInstanceMultiAlloc
944

    
945
  def GetPostOpInput(self):
946
    """Try to allocate multiple instances.
947

948
    @return: A dict with submitted jobs, allocatable instances and failed
949
             allocations
950

951
    """
952
    if "instances" not in self.request_body:
953
      raise http.HttpBadRequest("Request is missing required 'instances' field"
954
                                " in body")
955

    
956
    op_id = {
957
      "OP_ID": self.POST_OPCODE.OP_ID, # pylint: disable=E1101
958
      }
959
    body = objects.FillDict(self.request_body, {
960
      "instances": [objects.FillDict(inst, op_id)
961
                    for inst in self.request_body["instances"]],
962
      })
963

    
964
    return (body, {
965
      "dry_run": self.dryRun(),
966
      })
967

    
968

    
969
class R_2_instances_name(baserlib.OpcodeResource):
970
  """/2/instances/[instance_name] resource.
971

972
  """
973
  GET_OPCODE = opcodes.OpInstanceQuery
974
  DELETE_OPCODE = opcodes.OpInstanceRemove
975

    
976
  def GET(self):
977
    """Send information about an instance.
978

979
    """
980
    client = self.GetClient()
981
    instance_name = self.items[0]
982

    
983
    result = baserlib.HandleItemQueryErrors(client.QueryInstances,
984
                                            names=[instance_name],
985
                                            fields=I_FIELDS,
986
                                            use_locking=self.useLocking())
987

    
988
    return _UpdateBeparams(baserlib.MapFields(I_FIELDS, result[0]))
989

    
990
  def GetDeleteOpInput(self):
991
    """Delete an instance.
992

993
    """
994
    assert len(self.items) == 1
995
    return ({}, {
996
      "instance_name": self.items[0],
997
      "ignore_failures": False,
998
      "dry_run": self.dryRun(),
999
      })
1000

    
1001

    
1002
class R_2_instances_name_info(baserlib.OpcodeResource):
1003
  """/2/instances/[instance_name]/info resource.
1004

1005
  """
1006
  GET_OPCODE = opcodes.OpInstanceQueryData
1007

    
1008
  def GetGetOpInput(self):
1009
    """Request detailed instance information.
1010

1011
    """
1012
    assert len(self.items) == 1
1013
    return ({}, {
1014
      "instances": [self.items[0]],
1015
      "static": bool(self._checkIntVariable("static", default=0)),
1016
      })
1017

    
1018

    
1019
class R_2_instances_name_reboot(baserlib.OpcodeResource):
1020
  """/2/instances/[instance_name]/reboot resource.
1021

1022
  Implements an instance reboot.
1023

1024
  """
1025
  POST_OPCODE = opcodes.OpInstanceReboot
1026

    
1027
  def GetPostOpInput(self):
1028
    """Reboot an instance.
1029

1030
    The URI takes type=[hard|soft|full] and
1031
    ignore_secondaries=[False|True] parameters.
1032

1033
    """
1034
    return ({}, {
1035
      "instance_name": self.items[0],
1036
      "reboot_type":
1037
        self.queryargs.get("type", [constants.INSTANCE_REBOOT_HARD])[0],
1038
      "ignore_secondaries": bool(self._checkIntVariable("ignore_secondaries")),
1039
      "dry_run": self.dryRun(),
1040
      })
1041

    
1042

    
1043
class R_2_instances_name_startup(baserlib.OpcodeResource):
1044
  """/2/instances/[instance_name]/startup resource.
1045

1046
  Implements an instance startup.
1047

1048
  """
1049
  PUT_OPCODE = opcodes.OpInstanceStartup
1050

    
1051
  def GetPutOpInput(self):
1052
    """Startup an instance.
1053

1054
    The URI takes force=[False|True] parameter to start the instance
1055
    if even if secondary disks are failing.
1056

1057
    """
1058
    return ({}, {
1059
      "instance_name": self.items[0],
1060
      "force": self.useForce(),
1061
      "dry_run": self.dryRun(),
1062
      "no_remember": bool(self._checkIntVariable("no_remember")),
1063
      })
1064

    
1065

    
1066
class R_2_instances_name_shutdown(baserlib.OpcodeResource):
1067
  """/2/instances/[instance_name]/shutdown resource.
1068

1069
  Implements an instance shutdown.
1070

1071
  """
1072
  PUT_OPCODE = opcodes.OpInstanceShutdown
1073

    
1074
  def GetPutOpInput(self):
1075
    """Shutdown an instance.
1076

1077
    """
1078
    return (self.request_body, {
1079
      "instance_name": self.items[0],
1080
      "no_remember": bool(self._checkIntVariable("no_remember")),
1081
      "dry_run": self.dryRun(),
1082
      })
1083

    
1084

    
1085
def _ParseInstanceReinstallRequest(name, data):
1086
  """Parses a request for reinstalling an instance.
1087

1088
  """
1089
  if not isinstance(data, dict):
1090
    raise http.HttpBadRequest("Invalid body contents, not a dictionary")
1091

    
1092
  ostype = baserlib.CheckParameter(data, "os", default=None)
1093
  start = baserlib.CheckParameter(data, "start", exptype=bool,
1094
                                  default=True)
1095
  osparams = baserlib.CheckParameter(data, "osparams", default=None)
1096

    
1097
  ops = [
1098
    opcodes.OpInstanceShutdown(instance_name=name),
1099
    opcodes.OpInstanceReinstall(instance_name=name, os_type=ostype,
1100
                                osparams=osparams),
1101
    ]
1102

    
1103
  if start:
1104
    ops.append(opcodes.OpInstanceStartup(instance_name=name, force=False))
1105

    
1106
  return ops
1107

    
1108

    
1109
class R_2_instances_name_reinstall(baserlib.OpcodeResource):
1110
  """/2/instances/[instance_name]/reinstall resource.
1111

1112
  Implements an instance reinstall.
1113

1114
  """
1115
  POST_OPCODE = opcodes.OpInstanceReinstall
1116

    
1117
  def POST(self):
1118
    """Reinstall an instance.
1119

1120
    The URI takes os=name and nostartup=[0|1] optional
1121
    parameters. By default, the instance will be started
1122
    automatically.
1123

1124
    """
1125
    if self.request_body:
1126
      if self.queryargs:
1127
        raise http.HttpBadRequest("Can't combine query and body parameters")
1128

    
1129
      body = self.request_body
1130
    elif self.queryargs:
1131
      # Legacy interface, do not modify/extend
1132
      body = {
1133
        "os": self._checkStringVariable("os"),
1134
        "start": not self._checkIntVariable("nostartup"),
1135
        }
1136
    else:
1137
      body = {}
1138

    
1139
    ops = _ParseInstanceReinstallRequest(self.items[0], body)
1140

    
1141
    return self.SubmitJob(ops)
1142

    
1143

    
1144
class R_2_instances_name_replace_disks(baserlib.OpcodeResource):
1145
  """/2/instances/[instance_name]/replace-disks resource.
1146

1147
  """
1148
  POST_OPCODE = opcodes.OpInstanceReplaceDisks
1149

    
1150
  def GetPostOpInput(self):
1151
    """Replaces disks on an instance.
1152

1153
    """
1154
    static = {
1155
      "instance_name": self.items[0],
1156
      }
1157

    
1158
    if self.request_body:
1159
      data = self.request_body
1160
    elif self.queryargs:
1161
      # Legacy interface, do not modify/extend
1162
      data = {
1163
        "remote_node": self._checkStringVariable("remote_node", default=None),
1164
        "mode": self._checkStringVariable("mode", default=None),
1165
        "disks": self._checkStringVariable("disks", default=None),
1166
        "iallocator": self._checkStringVariable("iallocator", default=None),
1167
        }
1168
    else:
1169
      data = {}
1170

    
1171
    # Parse disks
1172
    try:
1173
      raw_disks = data.pop("disks")
1174
    except KeyError:
1175
      pass
1176
    else:
1177
      if raw_disks:
1178
        if ht.TListOf(ht.TInt)(raw_disks): # pylint: disable=E1102
1179
          data["disks"] = raw_disks
1180
        else:
1181
          # Backwards compatibility for strings of the format "1, 2, 3"
1182
          try:
1183
            data["disks"] = [int(part) for part in raw_disks.split(",")]
1184
          except (TypeError, ValueError), err:
1185
            raise http.HttpBadRequest("Invalid disk index passed: %s" % err)
1186

    
1187
    return (data, static)
1188

    
1189

    
1190
class R_2_instances_name_activate_disks(baserlib.OpcodeResource):
1191
  """/2/instances/[instance_name]/activate-disks resource.
1192

1193
  """
1194
  PUT_OPCODE = opcodes.OpInstanceActivateDisks
1195

    
1196
  def GetPutOpInput(self):
1197
    """Activate disks for an instance.
1198

1199
    The URI might contain ignore_size to ignore current recorded size.
1200

1201
    """
1202
    return ({}, {
1203
      "instance_name": self.items[0],
1204
      "ignore_size": bool(self._checkIntVariable("ignore_size")),
1205
      })
1206

    
1207

    
1208
class R_2_instances_name_deactivate_disks(baserlib.OpcodeResource):
1209
  """/2/instances/[instance_name]/deactivate-disks resource.
1210

1211
  """
1212
  PUT_OPCODE = opcodes.OpInstanceDeactivateDisks
1213

    
1214
  def GetPutOpInput(self):
1215
    """Deactivate disks for an instance.
1216

1217
    """
1218
    return ({}, {
1219
      "instance_name": self.items[0],
1220
      })
1221

    
1222

    
1223
class R_2_instances_name_recreate_disks(baserlib.OpcodeResource):
1224
  """/2/instances/[instance_name]/recreate-disks resource.
1225

1226
  """
1227
  POST_OPCODE = opcodes.OpInstanceRecreateDisks
1228

    
1229
  def GetPostOpInput(self):
1230
    """Recreate disks for an instance.
1231

1232
    """
1233
    return ({}, {
1234
      "instance_name": self.items[0],
1235
      })
1236

    
1237

    
1238
class R_2_instances_name_prepare_export(baserlib.OpcodeResource):
1239
  """/2/instances/[instance_name]/prepare-export resource.
1240

1241
  """
1242
  PUT_OPCODE = opcodes.OpBackupPrepare
1243

    
1244
  def GetPutOpInput(self):
1245
    """Prepares an export for an instance.
1246

1247
    """
1248
    return ({}, {
1249
      "instance_name": self.items[0],
1250
      "mode": self._checkStringVariable("mode"),
1251
      })
1252

    
1253

    
1254
class R_2_instances_name_export(baserlib.OpcodeResource):
1255
  """/2/instances/[instance_name]/export resource.
1256

1257
  """
1258
  PUT_OPCODE = opcodes.OpBackupExport
1259
  PUT_RENAME = {
1260
    "destination": "target_node",
1261
    }
1262

    
1263
  def GetPutOpInput(self):
1264
    """Exports an instance.
1265

1266
    """
1267
    return (self.request_body, {
1268
      "instance_name": self.items[0],
1269
      })
1270

    
1271

    
1272
class R_2_instances_name_migrate(baserlib.OpcodeResource):
1273
  """/2/instances/[instance_name]/migrate resource.
1274

1275
  """
1276
  PUT_OPCODE = opcodes.OpInstanceMigrate
1277

    
1278
  def GetPutOpInput(self):
1279
    """Migrates an instance.
1280

1281
    """
1282
    return (self.request_body, {
1283
      "instance_name": self.items[0],
1284
      })
1285

    
1286

    
1287
class R_2_instances_name_failover(baserlib.OpcodeResource):
1288
  """/2/instances/[instance_name]/failover resource.
1289

1290
  """
1291
  PUT_OPCODE = opcodes.OpInstanceFailover
1292

    
1293
  def GetPutOpInput(self):
1294
    """Does a failover of an instance.
1295

1296
    """
1297
    return (self.request_body, {
1298
      "instance_name": self.items[0],
1299
      })
1300

    
1301

    
1302
class R_2_instances_name_rename(baserlib.OpcodeResource):
1303
  """/2/instances/[instance_name]/rename resource.
1304

1305
  """
1306
  PUT_OPCODE = opcodes.OpInstanceRename
1307

    
1308
  def GetPutOpInput(self):
1309
    """Changes the name of an instance.
1310

1311
    """
1312
    return (self.request_body, {
1313
      "instance_name": self.items[0],
1314
      })
1315

    
1316

    
1317
class R_2_instances_name_modify(baserlib.OpcodeResource):
1318
  """/2/instances/[instance_name]/modify resource.
1319

1320
  """
1321
  PUT_OPCODE = opcodes.OpInstanceSetParams
1322

    
1323
  def GetPutOpInput(self):
1324
    """Changes parameters of an instance.
1325

1326
    """
1327
    return (self.request_body, {
1328
      "instance_name": self.items[0],
1329
      })
1330

    
1331

    
1332
class R_2_instances_name_disk_grow(baserlib.OpcodeResource):
1333
  """/2/instances/[instance_name]/disk/[disk_index]/grow resource.
1334

1335
  """
1336
  POST_OPCODE = opcodes.OpInstanceGrowDisk
1337

    
1338
  def GetPostOpInput(self):
1339
    """Increases the size of an instance disk.
1340

1341
    """
1342
    return (self.request_body, {
1343
      "instance_name": self.items[0],
1344
      "disk": int(self.items[1]),
1345
      })
1346

    
1347

    
1348
class R_2_instances_name_console(baserlib.ResourceBase):
1349
  """/2/instances/[instance_name]/console resource.
1350

1351
  """
1352
  GET_ACCESS = [rapi.RAPI_ACCESS_WRITE]
1353
  GET_OPCODE = opcodes.OpInstanceConsole
1354

    
1355
  def GET(self):
1356
    """Request information for connecting to instance's console.
1357

1358
    @return: Serialized instance console description, see
1359
             L{objects.InstanceConsole}
1360

1361
    """
1362
    client = self.GetClient()
1363

    
1364
    ((console, ), ) = client.QueryInstances([self.items[0]], ["console"], False)
1365

    
1366
    if console is None:
1367
      raise http.HttpServiceUnavailable("Instance console unavailable")
1368

    
1369
    assert isinstance(console, dict)
1370
    return console
1371

    
1372

    
1373
def _GetQueryFields(args):
1374
  """
1375

1376
  """
1377
  try:
1378
    fields = args["fields"]
1379
  except KeyError:
1380
    raise http.HttpBadRequest("Missing 'fields' query argument")
1381

    
1382
  return _SplitQueryFields(fields[0])
1383

    
1384

    
1385
def _SplitQueryFields(fields):
1386
  """
1387

1388
  """
1389
  return [i.strip() for i in fields.split(",")]
1390

    
1391

    
1392
class R_2_query(baserlib.ResourceBase):
1393
  """/2/query/[resource] resource.
1394

1395
  """
1396
  # Results might contain sensitive information
1397
  GET_ACCESS = [rapi.RAPI_ACCESS_WRITE]
1398
  GET_OPCODE = opcodes.OpQuery
1399
  PUT_OPCODE = opcodes.OpQuery
1400

    
1401
  def _Query(self, fields, qfilter):
1402
    return self.GetClient().Query(self.items[0], fields, qfilter).ToDict()
1403

    
1404
  def GET(self):
1405
    """Returns resource information.
1406

1407
    @return: Query result, see L{objects.QueryResponse}
1408

1409
    """
1410
    return self._Query(_GetQueryFields(self.queryargs), None)
1411

    
1412
  def PUT(self):
1413
    """Submits job querying for resources.
1414

1415
    @return: Query result, see L{objects.QueryResponse}
1416

1417
    """
1418
    body = self.request_body
1419

    
1420
    baserlib.CheckType(body, dict, "Body contents")
1421

    
1422
    try:
1423
      fields = body["fields"]
1424
    except KeyError:
1425
      fields = _GetQueryFields(self.queryargs)
1426

    
1427
    qfilter = body.get("qfilter", None)
1428
    # TODO: remove this after 2.7
1429
    if qfilter is None:
1430
      qfilter = body.get("filter", None)
1431

    
1432
    return self._Query(fields, qfilter)
1433

    
1434

    
1435
class R_2_query_fields(baserlib.ResourceBase):
1436
  """/2/query/[resource]/fields resource.
1437

1438
  """
1439
  GET_OPCODE = opcodes.OpQueryFields
1440

    
1441
  def GET(self):
1442
    """Retrieves list of available fields for a resource.
1443

1444
    @return: List of serialized L{objects.QueryFieldDefinition}
1445

1446
    """
1447
    try:
1448
      raw_fields = self.queryargs["fields"]
1449
    except KeyError:
1450
      fields = None
1451
    else:
1452
      fields = _SplitQueryFields(raw_fields[0])
1453

    
1454
    return self.GetClient().QueryFields(self.items[0], fields).ToDict()
1455

    
1456

    
1457
class _R_Tags(baserlib.OpcodeResource):
1458
  """Quasiclass for tagging resources.
1459

1460
  Manages tags. When inheriting this class you must define the
1461
  TAG_LEVEL for it.
1462

1463
  """
1464
  TAG_LEVEL = None
1465
  GET_OPCODE = opcodes.OpTagsGet
1466
  PUT_OPCODE = opcodes.OpTagsSet
1467
  DELETE_OPCODE = opcodes.OpTagsDel
1468

    
1469
  def __init__(self, items, queryargs, req, **kwargs):
1470
    """A tag resource constructor.
1471

1472
    We have to override the default to sort out cluster naming case.
1473

1474
    """
1475
    baserlib.OpcodeResource.__init__(self, items, queryargs, req, **kwargs)
1476

    
1477
    if self.TAG_LEVEL == constants.TAG_CLUSTER:
1478
      self.name = None
1479
    else:
1480
      self.name = items[0]
1481

    
1482
  def GET(self):
1483
    """Returns a list of tags.
1484

1485
    Example: ["tag1", "tag2", "tag3"]
1486

1487
    """
1488
    kind = self.TAG_LEVEL
1489

    
1490
    if kind in (constants.TAG_INSTANCE,
1491
                constants.TAG_NODEGROUP,
1492
                constants.TAG_NODE):
1493
      if not self.name:
1494
        raise http.HttpBadRequest("Missing name on tag request")
1495

    
1496
      cl = self.GetClient(query=True)
1497
      tags = list(cl.QueryTags(kind, self.name))
1498

    
1499
    elif kind == constants.TAG_CLUSTER:
1500
      assert not self.name
1501
      # TODO: Use query API?
1502
      ssc = ssconf.SimpleStore()
1503
      tags = ssc.GetClusterTags()
1504

    
1505
    return list(tags)
1506

    
1507
  def GetPutOpInput(self):
1508
    """Add a set of tags.
1509

1510
    The request as a list of strings should be PUT to this URI. And
1511
    you'll have back a job id.
1512

1513
    """
1514
    return ({}, {
1515
      "kind": self.TAG_LEVEL,
1516
      "name": self.name,
1517
      "tags": self.queryargs.get("tag", []),
1518
      "dry_run": self.dryRun(),
1519
      })
1520

    
1521
  def GetDeleteOpInput(self):
1522
    """Delete a tag.
1523

1524
    In order to delete a set of tags, the DELETE
1525
    request should be addressed to URI like:
1526
    /tags?tag=[tag]&tag=[tag]
1527

1528
    """
1529
    # Re-use code
1530
    return self.GetPutOpInput()
1531

    
1532

    
1533
class R_2_instances_name_tags(_R_Tags):
1534
  """ /2/instances/[instance_name]/tags resource.
1535

1536
  Manages per-instance tags.
1537

1538
  """
1539
  TAG_LEVEL = constants.TAG_INSTANCE
1540

    
1541

    
1542
class R_2_nodes_name_tags(_R_Tags):
1543
  """ /2/nodes/[node_name]/tags resource.
1544

1545
  Manages per-node tags.
1546

1547
  """
1548
  TAG_LEVEL = constants.TAG_NODE
1549

    
1550

    
1551
class R_2_groups_name_tags(_R_Tags):
1552
  """ /2/groups/[group_name]/tags resource.
1553

1554
  Manages per-nodegroup tags.
1555

1556
  """
1557
  TAG_LEVEL = constants.TAG_NODEGROUP
1558

    
1559
class R_2_networks_name_tags(_R_Tags):
1560
  """ /2/networks/[network_name]/tags resource.
1561

1562
  Manages per-network tags.
1563

1564
  """
1565
  TAG_LEVEL = constants.TAG_NETWORK
1566

    
1567

    
1568
class R_2_tags(_R_Tags):
1569
  """ /2/tags resource.
1570

1571
  Manages cluster tags.
1572

1573
  """
1574
  TAG_LEVEL = constants.TAG_CLUSTER