root / lib / rapi / rlib2.py @ bb579a7d
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#
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# Copyright (C) 2006, 2007, 2008 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 version 2 baserlib.library.
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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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To be in context of this module for instance creation POST on
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/2/instances is legitim while PUT would be not, due to it does create a
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new entity and not just replace /2/instances with it.
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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-msg=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 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.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", "nic.links", "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", "status", |
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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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] + _COMMON_FIELDS |
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_NR_DRAINED = "drained"
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_NR_MASTER_CANDIATE = "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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"M": _NR_MASTER,
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"C": _NR_MASTER_CANDIATE,
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"D": _NR_DRAINED,
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"O": _NR_OFFLINE,
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"R": _NR_REGULAR,
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} |
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class R_version(baserlib.R_Generic): |
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"""/version resource.
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This resource should be used to determine the remote API version and
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to adapt clients accordingly.
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"""
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@staticmethod
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def GET(): |
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"""Returns the remote API version.
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"""
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return constants.RAPI_VERSION
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class R_2_info(baserlib.R_Generic): |
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"""Cluster info.
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"""
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@staticmethod
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def GET(): |
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"""Returns cluster information.
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"""
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client = baserlib.GetClient() |
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return client.QueryClusterInfo()
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class R_2_os(baserlib.R_Generic): |
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"""/2/os resource.
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"""
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@staticmethod
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def GET(): |
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"""Return a list of all OSes.
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Can return error 500 in case of a problem.
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Example: ["debian-etch"]
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"""
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cl = baserlib.GetClient() |
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op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants"], |
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names=[]) |
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job_id = baserlib.SubmitJob([op], cl) |
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# we use custom feedback function, instead of print we log the status
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result = cli.PollJob(job_id, cl, feedback_fn=baserlib.FeedbackFn) |
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diagnose_data = result[0]
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if not isinstance(diagnose_data, list): |
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raise http.HttpBadGateway(message="Can't get OS list") |
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os_names = [] |
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for (name, valid, variants) in diagnose_data: |
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if valid:
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os_names.extend(cli.CalculateOSNames(name, variants)) |
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return os_names
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class R_2_redist_config(baserlib.R_Generic): |
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"""/2/redistribute-config resource.
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"""
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@staticmethod
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def PUT(): |
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"""Redistribute configuration to all nodes.
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"""
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return baserlib.SubmitJob([opcodes.OpRedistributeConfig()])
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class R_2_jobs(baserlib.R_Generic): |
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"""/2/jobs resource.
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"""
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@staticmethod
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def GET(): |
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"""Returns a dictionary of jobs.
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@return: a dictionary with jobs id and uri.
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"""
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fields = ["id"]
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cl = baserlib.GetClient() |
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# Convert the list of lists to the list of ids
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result = [job_id for [job_id] in cl.QueryJobs(None, fields)] |
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return baserlib.BuildUriList(result, "/2/jobs/%s", |
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uri_fields=("id", "uri")) |
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class R_2_jobs_id(baserlib.R_Generic): |
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"""/2/jobs/[job_id] resource.
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"""
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def GET(self): |
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"""Returns a job status.
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@return: a dictionary with job parameters.
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The result includes:
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- id: job ID as a number
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- status: current job status as a string
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- ops: involved OpCodes as a list of dictionaries for each
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opcodes in the job
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- opstatus: OpCodes status as a list
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- opresult: OpCodes results as a list of lists
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"""
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fields = ["id", "ops", "status", "summary", |
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"opstatus", "opresult", "oplog", |
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"received_ts", "start_ts", "end_ts", |
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] |
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job_id = self.items[0] |
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result = baserlib.GetClient().QueryJobs([job_id, ], fields)[0]
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if result is None: |
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raise http.HttpNotFound()
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return baserlib.MapFields(fields, result)
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def DELETE(self): |
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"""Cancel not-yet-started job.
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"""
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job_id = self.items[0] |
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result = baserlib.GetClient().CancelJob(job_id) |
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return result
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class R_2_nodes(baserlib.R_Generic): |
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"""/2/nodes resource.
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"""
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def GET(self): |
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"""Returns a list of all nodes.
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"""
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client = baserlib.GetClient() |
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if self.useBulk(): |
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bulkdata = client.QueryNodes([], N_FIELDS, False)
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return baserlib.MapBulkFields(bulkdata, N_FIELDS)
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else:
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nodesdata = client.QueryNodes([], ["name"], False) |
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nodeslist = [row[0] for row in nodesdata] |
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return baserlib.BuildUriList(nodeslist, "/2/nodes/%s", |
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uri_fields=("id", "uri")) |
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class R_2_nodes_name(baserlib.R_Generic): |
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"""/2/nodes/[node_name] resources.
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"""
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def GET(self): |
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"""Send information about a node.
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"""
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node_name = self.items[0] |
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client = baserlib.GetClient() |
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result = client.QueryNodes(names=[node_name], fields=N_FIELDS, |
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use_locking=self.useLocking())
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return baserlib.MapFields(N_FIELDS, result[0]) |
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class R_2_nodes_name_role(baserlib.R_Generic): |
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""" /2/nodes/[node_name]/role resource.
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"""
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def GET(self): |
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"""Returns the current node role.
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@return: Node role
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"""
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node_name = self.items[0] |
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client = baserlib.GetClient() |
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result = client.QueryNodes(names=[node_name], fields=["role"],
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use_locking=self.useLocking())
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return _NR_MAP[result[0][0]] |
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def PUT(self): |
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"""Sets the node role.
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@return: a job id
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"""
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if not isinstance(self.req.request_body, basestring): |
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raise http.HttpBadRequest("Invalid body contents, not a string") |
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node_name = self.items[0] |
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role = self.req.request_body
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if role == _NR_REGULAR:
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candidate = False
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offline = False
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drained = False
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elif role == _NR_MASTER_CANDIATE:
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candidate = True
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offline = drained = None
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elif role == _NR_DRAINED:
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drained = True
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candidate = offline = None
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elif role == _NR_OFFLINE:
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offline = True
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candidate = drained = None
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else:
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raise http.HttpBadRequest("Can't set '%s' role" % role) |
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op = opcodes.OpSetNodeParams(node_name=node_name, |
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master_candidate=candidate, |
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offline=offline, |
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drained=drained, |
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force=bool(self.useForce())) |
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return baserlib.SubmitJob([op])
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class R_2_nodes_name_evacuate(baserlib.R_Generic): |
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"""/2/nodes/[node_name]/evacuate resource.
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"""
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def POST(self): |
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"""Evacuate all secondary instances off a node.
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"""
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node_name = self.items[0] |
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remote_node = self._checkStringVariable("remote_node", default=None) |
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iallocator = self._checkStringVariable("iallocator", default=None) |
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op = opcodes.OpEvacuateNode(node_name=node_name, |
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remote_node=remote_node, |
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iallocator=iallocator) |
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return baserlib.SubmitJob([op])
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class R_2_nodes_name_migrate(baserlib.R_Generic): |
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"""/2/nodes/[node_name]/migrate resource.
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"""
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def POST(self): |
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"""Migrate all primary instances from a node.
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"""
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node_name = self.items[0] |
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live = bool(self._checkIntVariable("live", default=1)) |
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op = opcodes.OpMigrateNode(node_name=node_name, live=live) |
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return baserlib.SubmitJob([op])
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class R_2_nodes_name_storage(baserlib.R_Generic): |
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"""/2/nodes/[node_name]/storage ressource.
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"""
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# LUQueryNodeStorage acquires locks, hence restricting access to GET
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GET_ACCESS = [rapi.RAPI_ACCESS_WRITE] |
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def GET(self): |
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node_name = self.items[0] |
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storage_type = self._checkStringVariable("storage_type", None) |
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if not storage_type: |
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raise http.HttpBadRequest("Missing the required 'storage_type'" |
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" parameter")
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output_fields = self._checkStringVariable("output_fields", None) |
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if not output_fields: |
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raise http.HttpBadRequest("Missing the required 'output_fields'" |
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" parameter")
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op = opcodes.OpQueryNodeStorage(nodes=[node_name], |
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storage_type=storage_type, |
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output_fields=output_fields.split(","))
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return baserlib.SubmitJob([op])
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class R_2_nodes_name_storage_modify(baserlib.R_Generic): |
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"""/2/nodes/[node_name]/storage/modify ressource.
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"""
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def PUT(self): |
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node_name = self.items[0] |
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storage_type = self._checkStringVariable("storage_type", None) |
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if not storage_type: |
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raise http.HttpBadRequest("Missing the required 'storage_type'" |
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" parameter")
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name = self._checkStringVariable("name", None) |
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if not name: |
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raise http.HttpBadRequest("Missing the required 'name'" |
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" parameter")
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changes = {} |
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if "allocatable" in self.queryargs: |
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changes[constants.SF_ALLOCATABLE] = \ |
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bool(self._checkIntVariable("allocatable", default=1)) |
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op = opcodes.OpModifyNodeStorage(node_name=node_name, |
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storage_type=storage_type, |
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name=name, |
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changes=changes) |
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return baserlib.SubmitJob([op])
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class R_2_nodes_name_storage_repair(baserlib.R_Generic): |
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"""/2/nodes/[node_name]/storage/repair ressource.
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"""
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def PUT(self): |
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node_name = self.items[0] |
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storage_type = self._checkStringVariable("storage_type", None) |
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if not storage_type: |
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raise http.HttpBadRequest("Missing the required 'storage_type'" |
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" parameter")
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name = self._checkStringVariable("name", None) |
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if not name: |
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raise http.HttpBadRequest("Missing the required 'name'" |
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" parameter")
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op = opcodes.OpRepairNodeStorage(node_name=node_name, |
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storage_type=storage_type, |
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name=name) |
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return baserlib.SubmitJob([op])
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class R_2_instances(baserlib.R_Generic): |
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"""/2/instances resource.
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"""
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def GET(self): |
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"""Returns a list of all available instances.
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"""
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client = baserlib.GetClient() |
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use_locking = self.useLocking()
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if self.useBulk(): |
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bulkdata = client.QueryInstances([], I_FIELDS, use_locking) |
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return baserlib.MapBulkFields(bulkdata, I_FIELDS)
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else:
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instancesdata = client.QueryInstances([], ["name"], use_locking)
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instanceslist = [row[0] for row in instancesdata] |
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return baserlib.BuildUriList(instanceslist, "/2/instances/%s", |
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uri_fields=("id", "uri")) |
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def POST(self): |
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"""Create an instance.
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@return: a job id
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"""
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if not isinstance(self.req.request_body, dict): |
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raise http.HttpBadRequest("Invalid body contents, not a dictionary") |
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beparams = baserlib.MakeParamsDict(self.req.request_body,
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constants.BES_PARAMETERS) |
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hvparams = baserlib.MakeParamsDict(self.req.request_body,
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constants.HVS_PARAMETERS) |
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fn = self.getBodyParameter
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# disk processing
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disk_data = fn('disks')
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if not isinstance(disk_data, list): |
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raise http.HttpBadRequest("The 'disks' parameter should be a list") |
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disks = [] |
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for idx, d in enumerate(disk_data): |
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if not isinstance(d, int): |
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raise http.HttpBadRequest("Disk %d specification wrong: should" |
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" be an integer" % idx)
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disks.append({"size": d})
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# nic processing (one nic only)
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nics = [{"mac": fn("mac", constants.VALUE_AUTO)}] |
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if fn("ip", None) is not None: |
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nics[0]["ip"] = fn("ip") |
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if fn("mode", None) is not None: |
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nics[0]["mode"] = fn("mode") |
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if fn("link", None) is not None: |
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nics[0]["link"] = fn("link") |
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if fn("bridge", None) is not None: |
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nics[0]["bridge"] = fn("bridge") |
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op = opcodes.OpCreateInstance( |
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mode=constants.INSTANCE_CREATE, |
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instance_name=fn('name'),
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disks=disks, |
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disk_template=fn('disk_template'),
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os_type=fn('os'),
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pnode=fn('pnode', None), |
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snode=fn('snode', None), |
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iallocator=fn('iallocator', None), |
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nics=nics, |
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start=fn('start', True), |
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ip_check=fn('ip_check', True), |
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name_check=fn('name_check', True), |
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wait_for_sync=True,
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hypervisor=fn('hypervisor', None), |
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hvparams=hvparams, |
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beparams=beparams, |
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file_storage_dir=fn('file_storage_dir', None), |
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file_driver=fn('file_driver', 'loop'), |
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dry_run=bool(self.dryRun()), |
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) |
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return baserlib.SubmitJob([op])
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class R_2_instances_name(baserlib.R_Generic): |
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"""/2/instances/[instance_name] resources.
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"""
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def GET(self): |
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"""Send information about an instance.
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"""
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client = baserlib.GetClient() |
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instance_name = self.items[0] |
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result = client.QueryInstances(names=[instance_name], fields=I_FIELDS, |
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use_locking=self.useLocking())
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return baserlib.MapFields(I_FIELDS, result[0]) |
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def DELETE(self): |
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"""Delete an instance.
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"""
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op = opcodes.OpRemoveInstance(instance_name=self.items[0], |
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ignore_failures=False,
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dry_run=bool(self.dryRun())) |
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return baserlib.SubmitJob([op])
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|
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class R_2_instances_name_info(baserlib.R_Generic): |
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"""/2/instances/[instance_name]/info resource.
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"""
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def GET(self): |
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"""Request detailed instance information.
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"""
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instance_name = self.items[0] |
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static = bool(self._checkIntVariable("static", default=0)) |
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op = opcodes.OpQueryInstanceData(instances=[instance_name], |
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static=static) |
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return baserlib.SubmitJob([op])
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|
544 |
class R_2_instances_name_reboot(baserlib.R_Generic): |
545 |
"""/2/instances/[instance_name]/reboot resource.
|
546 |
|
547 |
Implements an instance reboot.
|
548 |
|
549 |
"""
|
550 |
def POST(self): |
551 |
"""Reboot an instance.
|
552 |
|
553 |
The URI takes type=[hard|soft|full] and
|
554 |
ignore_secondaries=[False|True] parameters.
|
555 |
|
556 |
"""
|
557 |
instance_name = self.items[0] |
558 |
reboot_type = self.queryargs.get('type', |
559 |
[constants.INSTANCE_REBOOT_HARD])[0]
|
560 |
ignore_secondaries = bool(self._checkIntVariable('ignore_secondaries')) |
561 |
op = opcodes.OpRebootInstance(instance_name=instance_name, |
562 |
reboot_type=reboot_type, |
563 |
ignore_secondaries=ignore_secondaries, |
564 |
dry_run=bool(self.dryRun())) |
565 |
|
566 |
return baserlib.SubmitJob([op])
|
567 |
|
568 |
|
569 |
class R_2_instances_name_startup(baserlib.R_Generic): |
570 |
"""/2/instances/[instance_name]/startup resource.
|
571 |
|
572 |
Implements an instance startup.
|
573 |
|
574 |
"""
|
575 |
def PUT(self): |
576 |
"""Startup an instance.
|
577 |
|
578 |
The URI takes force=[False|True] parameter to start the instance
|
579 |
if even if secondary disks are failing.
|
580 |
|
581 |
"""
|
582 |
instance_name = self.items[0] |
583 |
force_startup = bool(self._checkIntVariable('force')) |
584 |
op = opcodes.OpStartupInstance(instance_name=instance_name, |
585 |
force=force_startup, |
586 |
dry_run=bool(self.dryRun())) |
587 |
|
588 |
return baserlib.SubmitJob([op])
|
589 |
|
590 |
|
591 |
class R_2_instances_name_shutdown(baserlib.R_Generic): |
592 |
"""/2/instances/[instance_name]/shutdown resource.
|
593 |
|
594 |
Implements an instance shutdown.
|
595 |
|
596 |
"""
|
597 |
def PUT(self): |
598 |
"""Shutdown an instance.
|
599 |
|
600 |
"""
|
601 |
instance_name = self.items[0] |
602 |
op = opcodes.OpShutdownInstance(instance_name=instance_name, |
603 |
dry_run=bool(self.dryRun())) |
604 |
|
605 |
return baserlib.SubmitJob([op])
|
606 |
|
607 |
|
608 |
class R_2_instances_name_reinstall(baserlib.R_Generic): |
609 |
"""/2/instances/[instance_name]/reinstall resource.
|
610 |
|
611 |
Implements an instance reinstall.
|
612 |
|
613 |
"""
|
614 |
def POST(self): |
615 |
"""Reinstall an instance.
|
616 |
|
617 |
The URI takes os=name and nostartup=[0|1] optional
|
618 |
parameters. By default, the instance will be started
|
619 |
automatically.
|
620 |
|
621 |
"""
|
622 |
instance_name = self.items[0] |
623 |
ostype = self._checkStringVariable('os') |
624 |
nostartup = self._checkIntVariable('nostartup') |
625 |
ops = [ |
626 |
opcodes.OpShutdownInstance(instance_name=instance_name), |
627 |
opcodes.OpReinstallInstance(instance_name=instance_name, os_type=ostype), |
628 |
] |
629 |
if not nostartup: |
630 |
ops.append(opcodes.OpStartupInstance(instance_name=instance_name, |
631 |
force=False))
|
632 |
return baserlib.SubmitJob(ops)
|
633 |
|
634 |
|
635 |
class R_2_instances_name_replace_disks(baserlib.R_Generic): |
636 |
"""/2/instances/[instance_name]/replace-disks resource.
|
637 |
|
638 |
"""
|
639 |
def POST(self): |
640 |
"""Replaces disks on an instance.
|
641 |
|
642 |
"""
|
643 |
instance_name = self.items[0] |
644 |
remote_node = self._checkStringVariable("remote_node", default=None) |
645 |
mode = self._checkStringVariable("mode", default=None) |
646 |
raw_disks = self._checkStringVariable("disks", default=None) |
647 |
iallocator = self._checkStringVariable("iallocator", default=None) |
648 |
|
649 |
if raw_disks:
|
650 |
try:
|
651 |
disks = [int(part) for part in raw_disks.split(",")] |
652 |
except ValueError, err: |
653 |
raise http.HttpBadRequest("Invalid disk index passed: %s" % str(err)) |
654 |
else:
|
655 |
disks = [] |
656 |
|
657 |
op = opcodes.OpReplaceDisks(instance_name=instance_name, |
658 |
remote_node=remote_node, |
659 |
mode=mode, |
660 |
disks=disks, |
661 |
iallocator=iallocator) |
662 |
|
663 |
return baserlib.SubmitJob([op])
|
664 |
|
665 |
|
666 |
class R_2_instances_name_activate_disks(baserlib.R_Generic): |
667 |
"""/2/instances/[instance_name]/activate-disks resource.
|
668 |
|
669 |
"""
|
670 |
def PUT(self): |
671 |
"""Activate disks for an instance.
|
672 |
|
673 |
The URI might contain ignore_size to ignore current recorded size.
|
674 |
|
675 |
"""
|
676 |
instance_name = self.items[0] |
677 |
ignore_size = bool(self._checkIntVariable('ignore_size')) |
678 |
|
679 |
op = opcodes.OpActivateInstanceDisks(instance_name=instance_name, |
680 |
ignore_size=ignore_size) |
681 |
|
682 |
return baserlib.SubmitJob([op])
|
683 |
|
684 |
|
685 |
class R_2_instances_name_deactivate_disks(baserlib.R_Generic): |
686 |
"""/2/instances/[instance_name]/deactivate-disks resource.
|
687 |
|
688 |
"""
|
689 |
def PUT(self): |
690 |
"""Deactivate disks for an instance.
|
691 |
|
692 |
"""
|
693 |
instance_name = self.items[0] |
694 |
|
695 |
op = opcodes.OpDeactivateInstanceDisks(instance_name=instance_name) |
696 |
|
697 |
return baserlib.SubmitJob([op])
|
698 |
|
699 |
|
700 |
class _R_Tags(baserlib.R_Generic): |
701 |
""" Quasiclass for tagging resources
|
702 |
|
703 |
Manages tags. When inheriting this class you must define the
|
704 |
TAG_LEVEL for it.
|
705 |
|
706 |
"""
|
707 |
TAG_LEVEL = None
|
708 |
|
709 |
def __init__(self, items, queryargs, req): |
710 |
"""A tag resource constructor.
|
711 |
|
712 |
We have to override the default to sort out cluster naming case.
|
713 |
|
714 |
"""
|
715 |
baserlib.R_Generic.__init__(self, items, queryargs, req)
|
716 |
|
717 |
if self.TAG_LEVEL != constants.TAG_CLUSTER: |
718 |
self.name = items[0] |
719 |
else:
|
720 |
self.name = "" |
721 |
|
722 |
def GET(self): |
723 |
"""Returns a list of tags.
|
724 |
|
725 |
Example: ["tag1", "tag2", "tag3"]
|
726 |
|
727 |
"""
|
728 |
# pylint: disable-msg=W0212
|
729 |
return baserlib._Tags_GET(self.TAG_LEVEL, name=self.name) |
730 |
|
731 |
def PUT(self): |
732 |
"""Add a set of tags.
|
733 |
|
734 |
The request as a list of strings should be PUT to this URI. And
|
735 |
you'll have back a job id.
|
736 |
|
737 |
"""
|
738 |
# pylint: disable-msg=W0212
|
739 |
if 'tag' not in self.queryargs: |
740 |
raise http.HttpBadRequest("Please specify tag(s) to add using the" |
741 |
" the 'tag' parameter")
|
742 |
return baserlib._Tags_PUT(self.TAG_LEVEL, |
743 |
self.queryargs['tag'], name=self.name, |
744 |
dry_run=bool(self.dryRun())) |
745 |
|
746 |
def DELETE(self): |
747 |
"""Delete a tag.
|
748 |
|
749 |
In order to delete a set of tags, the DELETE
|
750 |
request should be addressed to URI like:
|
751 |
/tags?tag=[tag]&tag=[tag]
|
752 |
|
753 |
"""
|
754 |
# pylint: disable-msg=W0212
|
755 |
if 'tag' not in self.queryargs: |
756 |
# no we not gonna delete all tags
|
757 |
raise http.HttpBadRequest("Cannot delete all tags - please specify" |
758 |
" tag(s) using the 'tag' parameter")
|
759 |
return baserlib._Tags_DELETE(self.TAG_LEVEL, |
760 |
self.queryargs['tag'], |
761 |
name=self.name,
|
762 |
dry_run=bool(self.dryRun())) |
763 |
|
764 |
|
765 |
class R_2_instances_name_tags(_R_Tags): |
766 |
""" /2/instances/[instance_name]/tags resource.
|
767 |
|
768 |
Manages per-instance tags.
|
769 |
|
770 |
"""
|
771 |
TAG_LEVEL = constants.TAG_INSTANCE |
772 |
|
773 |
|
774 |
class R_2_nodes_name_tags(_R_Tags): |
775 |
""" /2/nodes/[node_name]/tags resource.
|
776 |
|
777 |
Manages per-node tags.
|
778 |
|
779 |
"""
|
780 |
TAG_LEVEL = constants.TAG_NODE |
781 |
|
782 |
|
783 |
class R_2_tags(_R_Tags): |
784 |
""" /2/instances/tags resource.
|
785 |
|
786 |
Manages cluster tags.
|
787 |
|
788 |
"""
|
789 |
TAG_LEVEL = constants.TAG_CLUSTER |