root / lib / rapi / rlib2.py @ e687ec01
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#
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 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-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 import ht |
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from ganeti import compat |
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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", "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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"group.uuid",
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] + _COMMON_FIELDS |
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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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] + _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_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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constants.NR_MASTER: _NR_MASTER, |
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constants.NR_MCANDIDATE: _NR_MASTER_CANDIATE, |
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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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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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"""/2/info resource.
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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_features(baserlib.R_Generic): |
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"""/2/features resource.
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"""
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@staticmethod
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def GET(): |
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"""Returns list of optional RAPI features implemented.
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"""
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return list(ALL_FEATURES) |
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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.OpOsDiagnose(output_fields=["name", "variants"], 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, variants) in diagnose_data: |
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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.OpClusterRedistConf()])
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class R_2_cluster_modify(baserlib.R_Generic): |
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"""/2/modify resource.
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"""
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def PUT(self): |
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"""Modifies cluster parameters.
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@return: a job id
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"""
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op = baserlib.FillOpcode(opcodes.OpClusterSetParams, self.request_body,
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None)
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return baserlib.SubmitJob([op])
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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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def GET(self): |
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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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client = baserlib.GetClient() |
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if self.useBulk(): |
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bulkdata = client.QueryJobs(None, J_FIELDS_BULK)
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return baserlib.MapBulkFields(bulkdata, J_FIELDS_BULK)
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else:
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jobdata = map(compat.fst, client.QueryJobs(None, ["id"])) |
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return baserlib.BuildUriList(jobdata, "/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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job_id = self.items[0] |
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result = baserlib.GetClient().QueryJobs([job_id, ], J_FIELDS)[0]
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if result is None: |
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raise http.HttpNotFound()
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return baserlib.MapFields(J_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_jobs_id_wait(baserlib.R_Generic): |
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"""/2/jobs/[job_id]/wait resource.
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"""
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# WaitForJobChange provides access to sensitive information and blocks
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# machine resources (it's a blocking RAPI call), hence restricting access.
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GET_ACCESS = [rapi.RAPI_ACCESS_WRITE] |
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def GET(self): |
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"""Waits for job changes.
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"""
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job_id = self.items[0] |
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fields = self.getBodyParameter("fields") |
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prev_job_info = self.getBodyParameter("previous_job_info", None) |
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prev_log_serial = self.getBodyParameter("previous_log_serial", None) |
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if not isinstance(fields, list): |
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raise http.HttpBadRequest("The 'fields' parameter should be a list") |
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if not (prev_job_info is None or isinstance(prev_job_info, list)): |
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raise http.HttpBadRequest("The 'previous_job_info' parameter should" |
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" be a list")
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if not (prev_log_serial is None or |
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isinstance(prev_log_serial, (int, long))): |
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raise http.HttpBadRequest("The 'previous_log_serial' parameter should" |
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" be a number")
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client = baserlib.GetClient() |
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result = client.WaitForJobChangeOnce(job_id, fields, |
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prev_job_info, prev_log_serial, |
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timeout=_WFJC_TIMEOUT) |
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if not result: |
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raise http.HttpNotFound()
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if result == constants.JOB_NOTCHANGED:
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# No changes
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return None |
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(job_info, log_entries) = result |
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return {
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"job_info": job_info,
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"log_entries": log_entries,
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} |
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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] resource.
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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 = baserlib.HandleItemQueryErrors(client.QueryNodes, |
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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.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.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.OpNodeSetParams(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 instances off a node.
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"""
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op = baserlib.FillOpcode(opcodes.OpNodeEvacuate, self.request_body, {
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"node_name": self.items[0], |
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"dry_run": self.dryRun(), |
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}) |
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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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if self.queryargs: |
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# Support old-style requests
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if "live" in self.queryargs and "mode" in self.queryargs: |
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raise http.HttpBadRequest("Only one of 'live' and 'mode' should" |
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" be passed")
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if "live" in self.queryargs: |
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if self._checkIntVariable("live", default=1): |
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mode = constants.HT_MIGRATION_LIVE |
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else:
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mode = constants.HT_MIGRATION_NONLIVE |
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else:
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mode = self._checkStringVariable("mode", default=None) |
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data = { |
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"mode": mode,
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} |
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else:
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data = self.request_body
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op = baserlib.FillOpcode(opcodes.OpNodeMigrate, data, { |
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"node_name": node_name,
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}) |
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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 resource.
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"""
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# LUNodeQueryStorage 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.OpNodeQueryStorage(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 resource.
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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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|
545 |
if "allocatable" in self.queryargs: |
546 |
changes[constants.SF_ALLOCATABLE] = \ |
547 |
bool(self._checkIntVariable("allocatable", default=1)) |
548 |
|
549 |
op = opcodes.OpNodeModifyStorage(node_name=node_name, |
550 |
storage_type=storage_type, |
551 |
name=name, |
552 |
changes=changes) |
553 |
return baserlib.SubmitJob([op])
|
554 |
|
555 |
|
556 |
class R_2_nodes_name_storage_repair(baserlib.R_Generic): |
557 |
"""/2/nodes/[node_name]/storage/repair resource.
|
558 |
|
559 |
"""
|
560 |
def PUT(self): |
561 |
node_name = self.items[0] |
562 |
|
563 |
storage_type = self._checkStringVariable("storage_type", None) |
564 |
if not storage_type: |
565 |
raise http.HttpBadRequest("Missing the required 'storage_type'" |
566 |
" parameter")
|
567 |
|
568 |
name = self._checkStringVariable("name", None) |
569 |
if not name: |
570 |
raise http.HttpBadRequest("Missing the required 'name'" |
571 |
" parameter")
|
572 |
|
573 |
op = opcodes.OpRepairNodeStorage(node_name=node_name, |
574 |
storage_type=storage_type, |
575 |
name=name) |
576 |
return baserlib.SubmitJob([op])
|
577 |
|
578 |
|
579 |
def _ParseCreateGroupRequest(data, dry_run): |
580 |
"""Parses a request for creating a node group.
|
581 |
|
582 |
@rtype: L{opcodes.OpGroupAdd}
|
583 |
@return: Group creation opcode
|
584 |
|
585 |
"""
|
586 |
override = { |
587 |
"dry_run": dry_run,
|
588 |
} |
589 |
|
590 |
rename = { |
591 |
"name": "group_name", |
592 |
} |
593 |
|
594 |
return baserlib.FillOpcode(opcodes.OpGroupAdd, data, override,
|
595 |
rename=rename) |
596 |
|
597 |
|
598 |
class R_2_groups(baserlib.R_Generic): |
599 |
"""/2/groups resource.
|
600 |
|
601 |
"""
|
602 |
def GET(self): |
603 |
"""Returns a list of all node groups.
|
604 |
|
605 |
"""
|
606 |
client = baserlib.GetClient() |
607 |
|
608 |
if self.useBulk(): |
609 |
bulkdata = client.QueryGroups([], G_FIELDS, False)
|
610 |
return baserlib.MapBulkFields(bulkdata, G_FIELDS)
|
611 |
else:
|
612 |
data = client.QueryGroups([], ["name"], False) |
613 |
groupnames = [row[0] for row in data] |
614 |
return baserlib.BuildUriList(groupnames, "/2/groups/%s", |
615 |
uri_fields=("name", "uri")) |
616 |
|
617 |
def POST(self): |
618 |
"""Create a node group.
|
619 |
|
620 |
@return: a job id
|
621 |
|
622 |
"""
|
623 |
baserlib.CheckType(self.request_body, dict, "Body contents") |
624 |
op = _ParseCreateGroupRequest(self.request_body, self.dryRun()) |
625 |
return baserlib.SubmitJob([op])
|
626 |
|
627 |
|
628 |
class R_2_groups_name(baserlib.R_Generic): |
629 |
"""/2/groups/[group_name] resource.
|
630 |
|
631 |
"""
|
632 |
def GET(self): |
633 |
"""Send information about a node group.
|
634 |
|
635 |
"""
|
636 |
group_name = self.items[0] |
637 |
client = baserlib.GetClient() |
638 |
|
639 |
result = baserlib.HandleItemQueryErrors(client.QueryGroups, |
640 |
names=[group_name], fields=G_FIELDS, |
641 |
use_locking=self.useLocking())
|
642 |
|
643 |
return baserlib.MapFields(G_FIELDS, result[0]) |
644 |
|
645 |
def DELETE(self): |
646 |
"""Delete a node group.
|
647 |
|
648 |
"""
|
649 |
op = opcodes.OpGroupRemove(group_name=self.items[0], |
650 |
dry_run=bool(self.dryRun())) |
651 |
|
652 |
return baserlib.SubmitJob([op])
|
653 |
|
654 |
|
655 |
def _ParseModifyGroupRequest(name, data): |
656 |
"""Parses a request for modifying a node group.
|
657 |
|
658 |
@rtype: L{opcodes.OpGroupSetParams}
|
659 |
@return: Group modify opcode
|
660 |
|
661 |
"""
|
662 |
return baserlib.FillOpcode(opcodes.OpGroupSetParams, data, {
|
663 |
"group_name": name,
|
664 |
}) |
665 |
|
666 |
|
667 |
class R_2_groups_name_modify(baserlib.R_Generic): |
668 |
"""/2/groups/[group_name]/modify resource.
|
669 |
|
670 |
"""
|
671 |
def PUT(self): |
672 |
"""Changes some parameters of node group.
|
673 |
|
674 |
@return: a job id
|
675 |
|
676 |
"""
|
677 |
baserlib.CheckType(self.request_body, dict, "Body contents") |
678 |
|
679 |
op = _ParseModifyGroupRequest(self.items[0], self.request_body) |
680 |
|
681 |
return baserlib.SubmitJob([op])
|
682 |
|
683 |
|
684 |
def _ParseRenameGroupRequest(name, data, dry_run): |
685 |
"""Parses a request for renaming a node group.
|
686 |
|
687 |
@type name: string
|
688 |
@param name: name of the node group to rename
|
689 |
@type data: dict
|
690 |
@param data: the body received by the rename request
|
691 |
@type dry_run: bool
|
692 |
@param dry_run: whether to perform a dry run
|
693 |
|
694 |
@rtype: L{opcodes.OpGroupRename}
|
695 |
@return: Node group rename opcode
|
696 |
|
697 |
"""
|
698 |
return baserlib.FillOpcode(opcodes.OpGroupRename, data, {
|
699 |
"group_name": name,
|
700 |
"dry_run": dry_run,
|
701 |
}) |
702 |
|
703 |
|
704 |
class R_2_groups_name_rename(baserlib.R_Generic): |
705 |
"""/2/groups/[group_name]/rename resource.
|
706 |
|
707 |
"""
|
708 |
def PUT(self): |
709 |
"""Changes the name of a node group.
|
710 |
|
711 |
@return: a job id
|
712 |
|
713 |
"""
|
714 |
baserlib.CheckType(self.request_body, dict, "Body contents") |
715 |
op = _ParseRenameGroupRequest(self.items[0], self.request_body, |
716 |
self.dryRun())
|
717 |
return baserlib.SubmitJob([op])
|
718 |
|
719 |
|
720 |
class R_2_groups_name_assign_nodes(baserlib.R_Generic): |
721 |
"""/2/groups/[group_name]/assign-nodes resource.
|
722 |
|
723 |
"""
|
724 |
def PUT(self): |
725 |
"""Assigns nodes to a group.
|
726 |
|
727 |
@return: a job id
|
728 |
|
729 |
"""
|
730 |
op = baserlib.FillOpcode(opcodes.OpGroupAssignNodes, self.request_body, {
|
731 |
"group_name": self.items[0], |
732 |
"dry_run": self.dryRun(), |
733 |
"force": self.useForce(), |
734 |
}) |
735 |
|
736 |
return baserlib.SubmitJob([op])
|
737 |
|
738 |
|
739 |
def _ParseInstanceCreateRequestVersion1(data, dry_run): |
740 |
"""Parses an instance creation request version 1.
|
741 |
|
742 |
@rtype: L{opcodes.OpInstanceCreate}
|
743 |
@return: Instance creation opcode
|
744 |
|
745 |
"""
|
746 |
override = { |
747 |
"dry_run": dry_run,
|
748 |
} |
749 |
|
750 |
rename = { |
751 |
"os": "os_type", |
752 |
"name": "instance_name", |
753 |
} |
754 |
|
755 |
return baserlib.FillOpcode(opcodes.OpInstanceCreate, data, override,
|
756 |
rename=rename) |
757 |
|
758 |
|
759 |
class R_2_instances(baserlib.R_Generic): |
760 |
"""/2/instances resource.
|
761 |
|
762 |
"""
|
763 |
def GET(self): |
764 |
"""Returns a list of all available instances.
|
765 |
|
766 |
"""
|
767 |
client = baserlib.GetClient() |
768 |
|
769 |
use_locking = self.useLocking()
|
770 |
if self.useBulk(): |
771 |
bulkdata = client.QueryInstances([], I_FIELDS, use_locking) |
772 |
return baserlib.MapBulkFields(bulkdata, I_FIELDS)
|
773 |
else:
|
774 |
instancesdata = client.QueryInstances([], ["name"], use_locking)
|
775 |
instanceslist = [row[0] for row in instancesdata] |
776 |
return baserlib.BuildUriList(instanceslist, "/2/instances/%s", |
777 |
uri_fields=("id", "uri")) |
778 |
|
779 |
def POST(self): |
780 |
"""Create an instance.
|
781 |
|
782 |
@return: a job id
|
783 |
|
784 |
"""
|
785 |
if not isinstance(self.request_body, dict): |
786 |
raise http.HttpBadRequest("Invalid body contents, not a dictionary") |
787 |
|
788 |
# Default to request data version 0
|
789 |
data_version = self.getBodyParameter(_REQ_DATA_VERSION, 0) |
790 |
|
791 |
if data_version == 0: |
792 |
raise http.HttpBadRequest("Instance creation request version 0 is no" |
793 |
" longer supported")
|
794 |
elif data_version == 1: |
795 |
data = self.request_body.copy()
|
796 |
# Remove "__version__"
|
797 |
data.pop(_REQ_DATA_VERSION, None)
|
798 |
op = _ParseInstanceCreateRequestVersion1(data, self.dryRun())
|
799 |
else:
|
800 |
raise http.HttpBadRequest("Unsupported request data version %s" % |
801 |
data_version) |
802 |
|
803 |
return baserlib.SubmitJob([op])
|
804 |
|
805 |
|
806 |
class R_2_instances_name(baserlib.R_Generic): |
807 |
"""/2/instances/[instance_name] resource.
|
808 |
|
809 |
"""
|
810 |
def GET(self): |
811 |
"""Send information about an instance.
|
812 |
|
813 |
"""
|
814 |
client = baserlib.GetClient() |
815 |
instance_name = self.items[0] |
816 |
|
817 |
result = baserlib.HandleItemQueryErrors(client.QueryInstances, |
818 |
names=[instance_name], |
819 |
fields=I_FIELDS, |
820 |
use_locking=self.useLocking())
|
821 |
|
822 |
return baserlib.MapFields(I_FIELDS, result[0]) |
823 |
|
824 |
def DELETE(self): |
825 |
"""Delete an instance.
|
826 |
|
827 |
"""
|
828 |
op = opcodes.OpInstanceRemove(instance_name=self.items[0], |
829 |
ignore_failures=False,
|
830 |
dry_run=bool(self.dryRun())) |
831 |
return baserlib.SubmitJob([op])
|
832 |
|
833 |
|
834 |
class R_2_instances_name_info(baserlib.R_Generic): |
835 |
"""/2/instances/[instance_name]/info resource.
|
836 |
|
837 |
"""
|
838 |
def GET(self): |
839 |
"""Request detailed instance information.
|
840 |
|
841 |
"""
|
842 |
instance_name = self.items[0] |
843 |
static = bool(self._checkIntVariable("static", default=0)) |
844 |
|
845 |
op = opcodes.OpInstanceQueryData(instances=[instance_name], |
846 |
static=static) |
847 |
return baserlib.SubmitJob([op])
|
848 |
|
849 |
|
850 |
class R_2_instances_name_reboot(baserlib.R_Generic): |
851 |
"""/2/instances/[instance_name]/reboot resource.
|
852 |
|
853 |
Implements an instance reboot.
|
854 |
|
855 |
"""
|
856 |
def POST(self): |
857 |
"""Reboot an instance.
|
858 |
|
859 |
The URI takes type=[hard|soft|full] and
|
860 |
ignore_secondaries=[False|True] parameters.
|
861 |
|
862 |
"""
|
863 |
instance_name = self.items[0] |
864 |
reboot_type = self.queryargs.get("type", |
865 |
[constants.INSTANCE_REBOOT_HARD])[0]
|
866 |
ignore_secondaries = bool(self._checkIntVariable("ignore_secondaries")) |
867 |
op = opcodes.OpInstanceReboot(instance_name=instance_name, |
868 |
reboot_type=reboot_type, |
869 |
ignore_secondaries=ignore_secondaries, |
870 |
dry_run=bool(self.dryRun())) |
871 |
|
872 |
return baserlib.SubmitJob([op])
|
873 |
|
874 |
|
875 |
class R_2_instances_name_startup(baserlib.R_Generic): |
876 |
"""/2/instances/[instance_name]/startup resource.
|
877 |
|
878 |
Implements an instance startup.
|
879 |
|
880 |
"""
|
881 |
def PUT(self): |
882 |
"""Startup an instance.
|
883 |
|
884 |
The URI takes force=[False|True] parameter to start the instance
|
885 |
if even if secondary disks are failing.
|
886 |
|
887 |
"""
|
888 |
instance_name = self.items[0] |
889 |
force_startup = bool(self._checkIntVariable("force")) |
890 |
no_remember = bool(self._checkIntVariable("no_remember")) |
891 |
op = opcodes.OpInstanceStartup(instance_name=instance_name, |
892 |
force=force_startup, |
893 |
dry_run=bool(self.dryRun()), |
894 |
no_remember=no_remember) |
895 |
|
896 |
return baserlib.SubmitJob([op])
|
897 |
|
898 |
|
899 |
def _ParseShutdownInstanceRequest(name, data, dry_run, no_remember): |
900 |
"""Parses a request for an instance shutdown.
|
901 |
|
902 |
@rtype: L{opcodes.OpInstanceShutdown}
|
903 |
@return: Instance shutdown opcode
|
904 |
|
905 |
"""
|
906 |
return baserlib.FillOpcode(opcodes.OpInstanceShutdown, data, {
|
907 |
"instance_name": name,
|
908 |
"dry_run": dry_run,
|
909 |
"no_remember": no_remember,
|
910 |
}) |
911 |
|
912 |
|
913 |
class R_2_instances_name_shutdown(baserlib.R_Generic): |
914 |
"""/2/instances/[instance_name]/shutdown resource.
|
915 |
|
916 |
Implements an instance shutdown.
|
917 |
|
918 |
"""
|
919 |
def PUT(self): |
920 |
"""Shutdown an instance.
|
921 |
|
922 |
@return: a job id
|
923 |
|
924 |
"""
|
925 |
baserlib.CheckType(self.request_body, dict, "Body contents") |
926 |
|
927 |
no_remember = bool(self._checkIntVariable("no_remember")) |
928 |
op = _ParseShutdownInstanceRequest(self.items[0], self.request_body, |
929 |
bool(self.dryRun()), no_remember) |
930 |
|
931 |
return baserlib.SubmitJob([op])
|
932 |
|
933 |
|
934 |
def _ParseInstanceReinstallRequest(name, data): |
935 |
"""Parses a request for reinstalling an instance.
|
936 |
|
937 |
"""
|
938 |
if not isinstance(data, dict): |
939 |
raise http.HttpBadRequest("Invalid body contents, not a dictionary") |
940 |
|
941 |
ostype = baserlib.CheckParameter(data, "os", default=None) |
942 |
start = baserlib.CheckParameter(data, "start", exptype=bool, |
943 |
default=True)
|
944 |
osparams = baserlib.CheckParameter(data, "osparams", default=None) |
945 |
|
946 |
ops = [ |
947 |
opcodes.OpInstanceShutdown(instance_name=name), |
948 |
opcodes.OpInstanceReinstall(instance_name=name, os_type=ostype, |
949 |
osparams=osparams), |
950 |
] |
951 |
|
952 |
if start:
|
953 |
ops.append(opcodes.OpInstanceStartup(instance_name=name, force=False))
|
954 |
|
955 |
return ops
|
956 |
|
957 |
|
958 |
class R_2_instances_name_reinstall(baserlib.R_Generic): |
959 |
"""/2/instances/[instance_name]/reinstall resource.
|
960 |
|
961 |
Implements an instance reinstall.
|
962 |
|
963 |
"""
|
964 |
def POST(self): |
965 |
"""Reinstall an instance.
|
966 |
|
967 |
The URI takes os=name and nostartup=[0|1] optional
|
968 |
parameters. By default, the instance will be started
|
969 |
automatically.
|
970 |
|
971 |
"""
|
972 |
if self.request_body: |
973 |
if self.queryargs: |
974 |
raise http.HttpBadRequest("Can't combine query and body parameters") |
975 |
|
976 |
body = self.request_body
|
977 |
elif self.queryargs: |
978 |
# Legacy interface, do not modify/extend
|
979 |
body = { |
980 |
"os": self._checkStringVariable("os"), |
981 |
"start": not self._checkIntVariable("nostartup"), |
982 |
} |
983 |
else:
|
984 |
body = {} |
985 |
|
986 |
ops = _ParseInstanceReinstallRequest(self.items[0], body) |
987 |
|
988 |
return baserlib.SubmitJob(ops)
|
989 |
|
990 |
|
991 |
def _ParseInstanceReplaceDisksRequest(name, data): |
992 |
"""Parses a request for an instance export.
|
993 |
|
994 |
@rtype: L{opcodes.OpInstanceReplaceDisks}
|
995 |
@return: Instance export opcode
|
996 |
|
997 |
"""
|
998 |
override = { |
999 |
"instance_name": name,
|
1000 |
} |
1001 |
|
1002 |
# Parse disks
|
1003 |
try:
|
1004 |
raw_disks = data["disks"]
|
1005 |
except KeyError: |
1006 |
pass
|
1007 |
else:
|
1008 |
if not ht.TListOf(ht.TInt)(raw_disks): # pylint: disable-msg=E1102 |
1009 |
# Backwards compatibility for strings of the format "1, 2, 3"
|
1010 |
try:
|
1011 |
data["disks"] = [int(part) for part in raw_disks.split(",")] |
1012 |
except (TypeError, ValueError), err: |
1013 |
raise http.HttpBadRequest("Invalid disk index passed: %s" % str(err)) |
1014 |
|
1015 |
return baserlib.FillOpcode(opcodes.OpInstanceReplaceDisks, data, override)
|
1016 |
|
1017 |
|
1018 |
class R_2_instances_name_replace_disks(baserlib.R_Generic): |
1019 |
"""/2/instances/[instance_name]/replace-disks resource.
|
1020 |
|
1021 |
"""
|
1022 |
def POST(self): |
1023 |
"""Replaces disks on an instance.
|
1024 |
|
1025 |
"""
|
1026 |
op = _ParseInstanceReplaceDisksRequest(self.items[0], self.request_body) |
1027 |
|
1028 |
return baserlib.SubmitJob([op])
|
1029 |
|
1030 |
|
1031 |
class R_2_instances_name_activate_disks(baserlib.R_Generic): |
1032 |
"""/2/instances/[instance_name]/activate-disks resource.
|
1033 |
|
1034 |
"""
|
1035 |
def PUT(self): |
1036 |
"""Activate disks for an instance.
|
1037 |
|
1038 |
The URI might contain ignore_size to ignore current recorded size.
|
1039 |
|
1040 |
"""
|
1041 |
instance_name = self.items[0] |
1042 |
ignore_size = bool(self._checkIntVariable("ignore_size")) |
1043 |
|
1044 |
op = opcodes.OpInstanceActivateDisks(instance_name=instance_name, |
1045 |
ignore_size=ignore_size) |
1046 |
|
1047 |
return baserlib.SubmitJob([op])
|
1048 |
|
1049 |
|
1050 |
class R_2_instances_name_deactivate_disks(baserlib.R_Generic): |
1051 |
"""/2/instances/[instance_name]/deactivate-disks resource.
|
1052 |
|
1053 |
"""
|
1054 |
def PUT(self): |
1055 |
"""Deactivate disks for an instance.
|
1056 |
|
1057 |
"""
|
1058 |
instance_name = self.items[0] |
1059 |
|
1060 |
op = opcodes.OpInstanceDeactivateDisks(instance_name=instance_name) |
1061 |
|
1062 |
return baserlib.SubmitJob([op])
|
1063 |
|
1064 |
|
1065 |
class R_2_instances_name_prepare_export(baserlib.R_Generic): |
1066 |
"""/2/instances/[instance_name]/prepare-export resource.
|
1067 |
|
1068 |
"""
|
1069 |
def PUT(self): |
1070 |
"""Prepares an export for an instance.
|
1071 |
|
1072 |
@return: a job id
|
1073 |
|
1074 |
"""
|
1075 |
instance_name = self.items[0] |
1076 |
mode = self._checkStringVariable("mode") |
1077 |
|
1078 |
op = opcodes.OpBackupPrepare(instance_name=instance_name, |
1079 |
mode=mode) |
1080 |
|
1081 |
return baserlib.SubmitJob([op])
|
1082 |
|
1083 |
|
1084 |
def _ParseExportInstanceRequest(name, data): |
1085 |
"""Parses a request for an instance export.
|
1086 |
|
1087 |
@rtype: L{opcodes.OpBackupExport}
|
1088 |
@return: Instance export opcode
|
1089 |
|
1090 |
"""
|
1091 |
# Rename "destination" to "target_node"
|
1092 |
try:
|
1093 |
data["target_node"] = data.pop("destination") |
1094 |
except KeyError: |
1095 |
pass
|
1096 |
|
1097 |
return baserlib.FillOpcode(opcodes.OpBackupExport, data, {
|
1098 |
"instance_name": name,
|
1099 |
}) |
1100 |
|
1101 |
|
1102 |
class R_2_instances_name_export(baserlib.R_Generic): |
1103 |
"""/2/instances/[instance_name]/export resource.
|
1104 |
|
1105 |
"""
|
1106 |
def PUT(self): |
1107 |
"""Exports an instance.
|
1108 |
|
1109 |
@return: a job id
|
1110 |
|
1111 |
"""
|
1112 |
if not isinstance(self.request_body, dict): |
1113 |
raise http.HttpBadRequest("Invalid body contents, not a dictionary") |
1114 |
|
1115 |
op = _ParseExportInstanceRequest(self.items[0], self.request_body) |
1116 |
|
1117 |
return baserlib.SubmitJob([op])
|
1118 |
|
1119 |
|
1120 |
def _ParseMigrateInstanceRequest(name, data): |
1121 |
"""Parses a request for an instance migration.
|
1122 |
|
1123 |
@rtype: L{opcodes.OpInstanceMigrate}
|
1124 |
@return: Instance migration opcode
|
1125 |
|
1126 |
"""
|
1127 |
return baserlib.FillOpcode(opcodes.OpInstanceMigrate, data, {
|
1128 |
"instance_name": name,
|
1129 |
}) |
1130 |
|
1131 |
|
1132 |
class R_2_instances_name_migrate(baserlib.R_Generic): |
1133 |
"""/2/instances/[instance_name]/migrate resource.
|
1134 |
|
1135 |
"""
|
1136 |
def PUT(self): |
1137 |
"""Migrates an instance.
|
1138 |
|
1139 |
@return: a job id
|
1140 |
|
1141 |
"""
|
1142 |
baserlib.CheckType(self.request_body, dict, "Body contents") |
1143 |
|
1144 |
op = _ParseMigrateInstanceRequest(self.items[0], self.request_body) |
1145 |
|
1146 |
return baserlib.SubmitJob([op])
|
1147 |
|
1148 |
|
1149 |
class R_2_instances_name_failover(baserlib.R_Generic): |
1150 |
"""/2/instances/[instance_name]/failover resource.
|
1151 |
|
1152 |
"""
|
1153 |
def PUT(self): |
1154 |
"""Does a failover of an instance.
|
1155 |
|
1156 |
@return: a job id
|
1157 |
|
1158 |
"""
|
1159 |
baserlib.CheckType(self.request_body, dict, "Body contents") |
1160 |
|
1161 |
op = baserlib.FillOpcode(opcodes.OpInstanceFailover, self.request_body, {
|
1162 |
"instance_name": self.items[0], |
1163 |
}) |
1164 |
|
1165 |
return baserlib.SubmitJob([op])
|
1166 |
|
1167 |
|
1168 |
def _ParseRenameInstanceRequest(name, data): |
1169 |
"""Parses a request for renaming an instance.
|
1170 |
|
1171 |
@rtype: L{opcodes.OpInstanceRename}
|
1172 |
@return: Instance rename opcode
|
1173 |
|
1174 |
"""
|
1175 |
return baserlib.FillOpcode(opcodes.OpInstanceRename, data, {
|
1176 |
"instance_name": name,
|
1177 |
}) |
1178 |
|
1179 |
|
1180 |
class R_2_instances_name_rename(baserlib.R_Generic): |
1181 |
"""/2/instances/[instance_name]/rename resource.
|
1182 |
|
1183 |
"""
|
1184 |
def PUT(self): |
1185 |
"""Changes the name of an instance.
|
1186 |
|
1187 |
@return: a job id
|
1188 |
|
1189 |
"""
|
1190 |
baserlib.CheckType(self.request_body, dict, "Body contents") |
1191 |
|
1192 |
op = _ParseRenameInstanceRequest(self.items[0], self.request_body) |
1193 |
|
1194 |
return baserlib.SubmitJob([op])
|
1195 |
|
1196 |
|
1197 |
def _ParseModifyInstanceRequest(name, data): |
1198 |
"""Parses a request for modifying an instance.
|
1199 |
|
1200 |
@rtype: L{opcodes.OpInstanceSetParams}
|
1201 |
@return: Instance modify opcode
|
1202 |
|
1203 |
"""
|
1204 |
return baserlib.FillOpcode(opcodes.OpInstanceSetParams, data, {
|
1205 |
"instance_name": name,
|
1206 |
}) |
1207 |
|
1208 |
|
1209 |
class R_2_instances_name_modify(baserlib.R_Generic): |
1210 |
"""/2/instances/[instance_name]/modify resource.
|
1211 |
|
1212 |
"""
|
1213 |
def PUT(self): |
1214 |
"""Changes some parameters of an instance.
|
1215 |
|
1216 |
@return: a job id
|
1217 |
|
1218 |
"""
|
1219 |
baserlib.CheckType(self.request_body, dict, "Body contents") |
1220 |
|
1221 |
op = _ParseModifyInstanceRequest(self.items[0], self.request_body) |
1222 |
|
1223 |
return baserlib.SubmitJob([op])
|
1224 |
|
1225 |
|
1226 |
class R_2_instances_name_disk_grow(baserlib.R_Generic): |
1227 |
"""/2/instances/[instance_name]/disk/[disk_index]/grow resource.
|
1228 |
|
1229 |
"""
|
1230 |
def POST(self): |
1231 |
"""Increases the size of an instance disk.
|
1232 |
|
1233 |
@return: a job id
|
1234 |
|
1235 |
"""
|
1236 |
op = baserlib.FillOpcode(opcodes.OpInstanceGrowDisk, self.request_body, {
|
1237 |
"instance_name": self.items[0], |
1238 |
"disk": int(self.items[1]), |
1239 |
}) |
1240 |
|
1241 |
return baserlib.SubmitJob([op])
|
1242 |
|
1243 |
|
1244 |
class R_2_instances_name_console(baserlib.R_Generic): |
1245 |
"""/2/instances/[instance_name]/console resource.
|
1246 |
|
1247 |
"""
|
1248 |
GET_ACCESS = [rapi.RAPI_ACCESS_WRITE] |
1249 |
|
1250 |
def GET(self): |
1251 |
"""Request information for connecting to instance's console.
|
1252 |
|
1253 |
@return: Serialized instance console description, see
|
1254 |
L{objects.InstanceConsole}
|
1255 |
|
1256 |
"""
|
1257 |
client = baserlib.GetClient() |
1258 |
|
1259 |
((console, ), ) = client.QueryInstances([self.items[0]], ["console"], False) |
1260 |
|
1261 |
if console is None: |
1262 |
raise http.HttpServiceUnavailable("Instance console unavailable") |
1263 |
|
1264 |
assert isinstance(console, dict) |
1265 |
return console
|
1266 |
|
1267 |
|
1268 |
def _GetQueryFields(args): |
1269 |
"""
|
1270 |
|
1271 |
"""
|
1272 |
try:
|
1273 |
fields = args["fields"]
|
1274 |
except KeyError: |
1275 |
raise http.HttpBadRequest("Missing 'fields' query argument") |
1276 |
|
1277 |
return _SplitQueryFields(fields[0]) |
1278 |
|
1279 |
|
1280 |
def _SplitQueryFields(fields): |
1281 |
"""
|
1282 |
|
1283 |
"""
|
1284 |
return [i.strip() for i in fields.split(",")] |
1285 |
|
1286 |
|
1287 |
class R_2_query(baserlib.R_Generic): |
1288 |
"""/2/query/[resource] resource.
|
1289 |
|
1290 |
"""
|
1291 |
# Results might contain sensitive information
|
1292 |
GET_ACCESS = [rapi.RAPI_ACCESS_WRITE] |
1293 |
|
1294 |
def _Query(self, fields, filter_): |
1295 |
return baserlib.GetClient().Query(self.items[0], fields, filter_).ToDict() |
1296 |
|
1297 |
def GET(self): |
1298 |
"""Returns resource information.
|
1299 |
|
1300 |
@return: Query result, see L{objects.QueryResponse}
|
1301 |
|
1302 |
"""
|
1303 |
return self._Query(_GetQueryFields(self.queryargs), None) |
1304 |
|
1305 |
def PUT(self): |
1306 |
"""Submits job querying for resources.
|
1307 |
|
1308 |
@return: Query result, see L{objects.QueryResponse}
|
1309 |
|
1310 |
"""
|
1311 |
body = self.request_body
|
1312 |
|
1313 |
baserlib.CheckType(body, dict, "Body contents") |
1314 |
|
1315 |
try:
|
1316 |
fields = body["fields"]
|
1317 |
except KeyError: |
1318 |
fields = _GetQueryFields(self.queryargs)
|
1319 |
|
1320 |
return self._Query(fields, self.request_body.get("filter", None)) |
1321 |
|
1322 |
|
1323 |
class R_2_query_fields(baserlib.R_Generic): |
1324 |
"""/2/query/[resource]/fields resource.
|
1325 |
|
1326 |
"""
|
1327 |
def GET(self): |
1328 |
"""Retrieves list of available fields for a resource.
|
1329 |
|
1330 |
@return: List of serialized L{objects.QueryFieldDefinition}
|
1331 |
|
1332 |
"""
|
1333 |
try:
|
1334 |
raw_fields = self.queryargs["fields"] |
1335 |
except KeyError: |
1336 |
fields = None
|
1337 |
else:
|
1338 |
fields = _SplitQueryFields(raw_fields[0])
|
1339 |
|
1340 |
return baserlib.GetClient().QueryFields(self.items[0], fields).ToDict() |
1341 |
|
1342 |
|
1343 |
class _R_Tags(baserlib.R_Generic): |
1344 |
""" Quasiclass for tagging resources
|
1345 |
|
1346 |
Manages tags. When inheriting this class you must define the
|
1347 |
TAG_LEVEL for it.
|
1348 |
|
1349 |
"""
|
1350 |
TAG_LEVEL = None
|
1351 |
|
1352 |
def __init__(self, items, queryargs, req): |
1353 |
"""A tag resource constructor.
|
1354 |
|
1355 |
We have to override the default to sort out cluster naming case.
|
1356 |
|
1357 |
"""
|
1358 |
baserlib.R_Generic.__init__(self, items, queryargs, req)
|
1359 |
|
1360 |
if self.TAG_LEVEL == constants.TAG_CLUSTER: |
1361 |
self.name = None |
1362 |
else:
|
1363 |
self.name = items[0] |
1364 |
|
1365 |
def GET(self): |
1366 |
"""Returns a list of tags.
|
1367 |
|
1368 |
Example: ["tag1", "tag2", "tag3"]
|
1369 |
|
1370 |
"""
|
1371 |
# pylint: disable-msg=W0212
|
1372 |
return baserlib._Tags_GET(self.TAG_LEVEL, name=self.name) |
1373 |
|
1374 |
def PUT(self): |
1375 |
"""Add a set of tags.
|
1376 |
|
1377 |
The request as a list of strings should be PUT to this URI. And
|
1378 |
you'll have back a job id.
|
1379 |
|
1380 |
"""
|
1381 |
# pylint: disable-msg=W0212
|
1382 |
if "tag" not in self.queryargs: |
1383 |
raise http.HttpBadRequest("Please specify tag(s) to add using the" |
1384 |
" the 'tag' parameter")
|
1385 |
return baserlib._Tags_PUT(self.TAG_LEVEL, |
1386 |
self.queryargs["tag"], name=self.name, |
1387 |
dry_run=bool(self.dryRun())) |
1388 |
|
1389 |
def DELETE(self): |
1390 |
"""Delete a tag.
|
1391 |
|
1392 |
In order to delete a set of tags, the DELETE
|
1393 |
request should be addressed to URI like:
|
1394 |
/tags?tag=[tag]&tag=[tag]
|
1395 |
|
1396 |
"""
|
1397 |
# pylint: disable-msg=W0212
|
1398 |
if "tag" not in self.queryargs: |
1399 |
# no we not gonna delete all tags
|
1400 |
raise http.HttpBadRequest("Cannot delete all tags - please specify" |
1401 |
" tag(s) using the 'tag' parameter")
|
1402 |
return baserlib._Tags_DELETE(self.TAG_LEVEL, |
1403 |
self.queryargs["tag"], |
1404 |
name=self.name,
|
1405 |
dry_run=bool(self.dryRun())) |
1406 |
|
1407 |
|
1408 |
class R_2_instances_name_tags(_R_Tags): |
1409 |
""" /2/instances/[instance_name]/tags resource.
|
1410 |
|
1411 |
Manages per-instance tags.
|
1412 |
|
1413 |
"""
|
1414 |
TAG_LEVEL = constants.TAG_INSTANCE |
1415 |
|
1416 |
|
1417 |
class R_2_nodes_name_tags(_R_Tags): |
1418 |
""" /2/nodes/[node_name]/tags resource.
|
1419 |
|
1420 |
Manages per-node tags.
|
1421 |
|
1422 |
"""
|
1423 |
TAG_LEVEL = constants.TAG_NODE |
1424 |
|
1425 |
|
1426 |
class R_2_groups_name_tags(_R_Tags): |
1427 |
""" /2/groups/[group_name]/tags resource.
|
1428 |
|
1429 |
Manages per-nodegroup tags.
|
1430 |
|
1431 |
"""
|
1432 |
TAG_LEVEL = constants.TAG_NODEGROUP |
1433 |
|
1434 |
|
1435 |
class R_2_tags(_R_Tags): |
1436 |
""" /2/tags resource.
|
1437 |
|
1438 |
Manages cluster tags.
|
1439 |
|
1440 |
"""
|
1441 |
TAG_LEVEL = constants.TAG_CLUSTER |