343 lines
12 KiB
Python
343 lines
12 KiB
Python
#
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# Copyright (c) 2020 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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import jsonpatch
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import pecan
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from pecan import rest
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import wsme
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from wsme import types as wtypes
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import wsmeext.pecan as wsme_pecan
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from oslo_log import log
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from sysinv._i18n import _
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from sysinv.api.controllers.v1 import base
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from sysinv.api.controllers.v1 import collection
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from sysinv.api.controllers.v1 import link
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from sysinv.api.controllers.v1 import types
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from sysinv.api.controllers.v1 import utils
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from sysinv.common import constants
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from sysinv.common import exception
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from sysinv.common import utils as cutils
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from sysinv import objects
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LOG = log.getLogger(__name__)
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class HostFsPatchType(types.JsonPatchType):
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@staticmethod
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def mandatory_attrs():
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return []
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class HostFs(base.APIBase):
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"""API representation of a host_fs.
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This class enforces type checking and value constraints, and converts
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between the internal object model and the API representation of
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a host's filesystems.
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"""
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uuid = types.uuid
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"Unique UUID for this host_fs"
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name = wsme.wsattr(wtypes.text, mandatory=True)
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size = int
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logical_volume = wsme.wsattr(wtypes.text)
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forihostid = int
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"The ihostid that this host_fs belongs to"
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ihost_uuid = types.uuid
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"The UUID of the host this host_fs belongs to"
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links = [link.Link]
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"A list containing a self link and associated host_fs links"
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def __init__(self, **kwargs):
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self.fields = list(objects.host_fs.fields.keys())
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for k in self.fields:
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setattr(self, k, kwargs.get(k))
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# API-only attribute)
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self.fields.append('action')
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setattr(self, 'action', kwargs.get('action', None))
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@classmethod
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def convert_with_links(cls, rpc_host_fs, expand=True):
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host_fs = HostFs(**rpc_host_fs.as_dict())
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if not expand:
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host_fs.unset_fields_except(['uuid', 'name', 'size',
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'logical_volume',
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'created_at', 'updated_at',
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'ihost_uuid', 'forihostid'])
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# never expose the ihost_id attribute, allow exposure for now
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host_fs.forihostid = wtypes.Unset
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host_fs.links = [link.Link.make_link('self', pecan.request.host_url,
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'host_fs', host_fs.uuid),
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link.Link.make_link('bookmark',
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pecan.request.host_url,
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'host_fs', host_fs.uuid,
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bookmark=True)]
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return host_fs
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class HostFsCollection(collection.Collection):
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"""API representation of a collection of host_fs."""
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host_fs = [HostFs]
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"A list containing host_fs objects"
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def __init__(self, **kwargs):
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self._type = 'host_fs'
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@classmethod
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def convert_with_links(cls, rpc_host_fs, limit, url=None,
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expand=False, **kwargs):
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collection = HostFsCollection()
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collection.host_fs = [HostFs.convert_with_links(p, expand)
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for p in rpc_host_fs]
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collection.next = collection.get_next(limit, url=url, **kwargs)
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return collection
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def _calculate_requested_growth(host_fs_list, host_fs_list_new):
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""" Check host filesystem data and return growth
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returns: cgtsvg_growth_gib
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"""
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cgtsvg_growth_gib = 0
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for fs in host_fs_list_new:
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for fs_current in host_fs_list:
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if fs_current.name == fs.name:
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orig = int(float(fs_current.size))
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new = int(fs.size)
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LOG.info(
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"_calculate_requested_growth orig=%s: %s" % (orig, new))
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if orig > new:
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raise wsme.exc.ClientSideError(_("'%s' must be at least: "
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"%s" % (fs.name, orig)))
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cgtsvg_growth_gib += (new - orig)
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return cgtsvg_growth_gib
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LOCK_NAME = 'HostFsController'
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class HostFsController(rest.RestController):
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"""REST controller for host_fs."""
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_custom_actions = {
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'detail': ['GET'],
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'update_many': ['PUT'],
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}
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def __init__(self, from_ihosts=False):
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self._from_ihosts = from_ihosts
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def _get_host_fs_collection(self, ihost_uuid, marker, limit, sort_key,
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sort_dir, expand=False, resource_url=None):
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if self._from_ihosts and not ihost_uuid:
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raise exception.InvalidParameterValue(_(
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"Host id not specified."))
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limit = utils.validate_limit(limit)
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sort_dir = utils.validate_sort_dir(sort_dir)
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marker_obj = None
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if marker:
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marker_obj = objects.host_fs.get_by_uuid(
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pecan.request.context,
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marker)
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if ihost_uuid:
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host_fs = pecan.request.dbapi.host_fs_get_by_ihost(
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ihost_uuid, limit,
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marker_obj,
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sort_key=sort_key,
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sort_dir=sort_dir)
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else:
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host_fs = pecan.request.dbapi.host_fs_get_list(limit, marker_obj,
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sort_key=sort_key,
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sort_dir=sort_dir)
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return HostFsCollection.convert_with_links(host_fs, limit,
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url=resource_url,
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expand=expand,
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sort_key=sort_key,
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sort_dir=sort_dir)
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@wsme_pecan.wsexpose(HostFsCollection, types.uuid, types.uuid, int,
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wtypes.text, wtypes.text)
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def get_all(self, ihost_uuid=None, marker=None, limit=None,
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sort_key='id', sort_dir='asc'):
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"""Retrieve a list of filesystems for the given host."""
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return self._get_host_fs_collection(ihost_uuid, marker, limit,
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sort_key, sort_dir)
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@wsme_pecan.wsexpose(HostFsCollection, types.uuid, types.uuid, int,
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wtypes.text, wtypes.text)
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def detail(self, ihost_uuid=None, marker=None, limit=None,
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sort_key='id', sort_dir='asc'):
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"""Retrieve a list of filesystems for the given host with detail."""
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parent = pecan.request.path.split('/')[:-1][-1]
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if parent != "host_fs":
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raise exception.HTTPNotFound
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expand = True
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resource_url = '/'.join(['host_fs', 'detail'])
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return self._get_host_fs_collection(ihost_uuid,
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marker, limit,
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sort_key, sort_dir,
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expand, resource_url)
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@wsme_pecan.wsexpose(HostFs, types.uuid)
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def get_one(self, host_fs_uuid):
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"""Retrieve the filesystem information about the given host."""
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LOG.info("get one: %s" % host_fs_uuid)
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if self._from_ihosts:
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raise exception.OperationNotPermitted
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rpc_host_fs = objects.host_fs.get_by_uuid(pecan.request.context,
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host_fs_uuid)
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return HostFs.convert_with_links(rpc_host_fs)
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@cutils.synchronized(LOCK_NAME)
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@wsme.validate(types.uuid, [HostFsPatchType])
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@wsme_pecan.wsexpose(HostFs, types.uuid,
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body=[HostFsPatchType])
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def patch(self, host_fs_uuid, patch):
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raise exception.OperationNotPermitted
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@cutils.synchronized(LOCK_NAME)
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@wsme.validate(types.uuid, [HostFsPatchType])
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@wsme_pecan.wsexpose(None, types.uuid, body=[[HostFsPatchType]])
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def update_many(self, ihost_uuid, patch):
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"""Update existing filesystems for a host."""
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LOG.info("patch_data: %s" % patch)
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# Validate input filesystem names
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current_host_fs_list = pecan.request.dbapi.host_fs_get_by_ihost(ihost_uuid)
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host = pecan.request.dbapi.ihost_get(ihost_uuid)
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modified_fs = []
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for p_list in patch:
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p_obj_list = jsonpatch.JsonPatch(p_list)
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for p_obj in p_obj_list:
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if p_obj['path'] == '/action':
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value = p_obj['value']
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patch.remove(p_list)
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for p_list in patch:
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p_obj_list = jsonpatch.JsonPatch(p_list)
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for p_obj in p_obj_list:
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if p_obj['path'] == '/name':
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fs_display_name = p_obj['value']
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fs_name = fs_display_name
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elif p_obj['path'] == '/size':
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size = p_obj['value']
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if fs_name not in [fs['name'] for fs in current_host_fs_list]:
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msg = _("HostFs update failed: invalid filesystem "
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"'%s' " % fs_display_name)
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raise wsme.exc.ClientSideError(msg)
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elif not cutils.is_int_like(size):
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msg = _("HostFs update failed: filesystem '%s' "
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"size must be an integer " % fs_display_name)
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raise wsme.exc.ClientSideError(msg)
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current_size = [fs['size'] for
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fs in current_host_fs_list
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if fs['name'] == fs_name][0]
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if int(size) <= int(current_size):
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msg = _("HostFs update failed: size for filesystem '%s' "
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"should be bigger than %s " % (
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fs_display_name, current_size))
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raise wsme.exc.ClientSideError(msg)
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modified_fs += [fs_name]
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if not modified_fs:
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msg = _("HostFs update failed: no filesystems to update")
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raise wsme.exc.ClientSideError(msg)
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host_fs_list_new = []
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for fs in current_host_fs_list:
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replaced = False
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for p_list in patch:
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p_obj_list = jsonpatch.JsonPatch(p_list)
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for p_obj in p_obj_list:
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if p_obj['value'] == fs['name']:
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try:
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host_fs_list_new += [HostFs(
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**jsonpatch.apply_patch(fs.as_dict(), p_obj_list))]
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replaced = True
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break
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except utils.JSONPATCH_EXCEPTIONS as e:
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raise exception.PatchError(patch=p_list, reason=e)
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if replaced:
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break
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if not replaced:
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host_fs_list_new += [fs]
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requested_growth_gib = \
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_calculate_requested_growth(current_host_fs_list, host_fs_list_new)
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LOG.info("Requested growth in GiB: %s" % requested_growth_gib)
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cgtsvg_free_space_gib = utils.get_node_cgtsvg_limit(host)
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if requested_growth_gib > cgtsvg_free_space_gib:
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msg = _("HostFs update failed: Not enough free space on %s. "
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"Current free space %s GiB, "
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"requested total increase %s GiB" %
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(constants.LVG_CGTS_VG, cgtsvg_free_space_gib, requested_growth_gib))
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LOG.warning(msg)
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raise wsme.exc.ClientSideError(msg)
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for fs in host_fs_list_new:
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if fs.name in modified_fs:
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value = {'size': fs.size}
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pecan.request.dbapi.host_fs_update(fs.uuid, value)
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try:
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if (host.invprovision in [constants.PROVISIONED,
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constants.PROVISIONING]):
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# perform rpc to conductor to perform config apply
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pecan.request.rpcapi.update_host_filesystem_config(
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pecan.request.context,
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host=host,
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filesystem_list=modified_fs,)
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except Exception as e:
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msg = _("Failed to update filesystem size for %s" % host.hostname)
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LOG.error("%s with patch %s with exception %s" % (msg, patch, e))
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raise wsme.exc.ClientSideError(msg)
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@wsme_pecan.wsexpose(None, types.uuid, status_code=204)
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def delete(self, host_fs_uuid):
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"""Delete a host_fs."""
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raise exception.OperationNotPermitted
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@cutils.synchronized(LOCK_NAME)
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@wsme_pecan.wsexpose(HostFs, body=HostFs)
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def post(self, host_fs):
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"""Create a new host_fs."""
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raise exception.OperationNotPermitted
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