150 lines
5.9 KiB
Python
150 lines
5.9 KiB
Python
# Copyright 2014 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import jsonschema
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from bareon import errors
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from bareon.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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KS_SPACES_SCHEMA = {
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'$schema': 'http://json-schema.org/draft-04/schema#',
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'title': 'Partition scheme',
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'type': 'array',
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'minItems': 1,
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'uniqueItems': True,
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'items': {
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'anyOf': [
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{
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'type': 'object',
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'required': ['type', 'id', 'volumes', 'name',
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'size', 'extra', 'free_space'],
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'properties': {
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'type': {'enum': ['disk']},
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'id': {'type': 'string'},
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'name': {'type': 'string'},
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'size': {'type': 'integer'},
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'free_space': {'type': 'integer'},
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'extra': {
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'type': 'array',
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'items': {'type': 'string'},
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},
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'volumes': {
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'type': 'array',
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'items': {
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'anyOf': [
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{
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'type': 'object',
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'required': ['type', 'size',
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'lvm_meta_size', 'vg'],
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'properties': {
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'type': {'enum': ['pv']},
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'size': {'type': 'integer'},
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'lvm_meta_size': {'type': 'integer'},
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'vg': {'type': 'string'}
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}
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},
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{
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'type': 'object',
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'required': ['type', 'size'],
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'properties': {
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'type': {'enum': ['raid',
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'partition']},
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'size': {'type': 'integer'},
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'mount': {'type': 'string'},
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'file_system': {'type': 'string'},
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'name': {'type': 'string'}
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}
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},
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{
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'type': 'object',
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'required': ['type', 'size'],
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'properties': {
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'type': {'enum': ['boot']},
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'size': {'type': 'integer'}
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}
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},
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{
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'type': 'object',
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'required': ['type', 'size'],
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'properties': {
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'type': {'enum': ['lvm_meta_pool']},
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'size': {'type': 'integer'}
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}
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},
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]
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}
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}
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}
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},
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{
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'type': 'object',
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'required': ['type', 'id', 'volumes'],
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'properties': {
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'type': {'enum': ['vg']},
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'id': {'type': 'string'},
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'label': {'type': 'string'},
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'min_size': {'type': 'integer'},
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'_allocate_size': {'type': 'string'},
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'volumes': {
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'type': 'array',
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'items': {
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'type': 'object',
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'required': ['type', 'size', 'name'],
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'properties': {
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'type': {'enum': ['lv']},
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'size': {'type': 'integer'},
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'name': {'type': 'string'},
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'mount': {'type': 'string'},
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'file_system': {'type': 'string'},
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}
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}
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}
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}
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}
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]
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}
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}
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def validate(scheme):
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"""Validates a given partition scheme using jsonschema.
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:param scheme: partition scheme to validate
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"""
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try:
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checker = jsonschema.FormatChecker()
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jsonschema.validate(scheme, KS_SPACES_SCHEMA,
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format_checker=checker)
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except Exception as exc:
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LOG.exception(exc)
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raise errors.WrongPartitionSchemeError(str(exc))
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# scheme is not valid if the number of disks is 0
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if not [d for d in scheme if d['type'] == 'disk']:
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raise errors.WrongPartitionSchemeError(
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'Partition scheme seems empty')
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for space in scheme:
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for volume in space.get('volumes', []):
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if volume['size'] > 16777216 and volume['mount'] == '/':
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raise errors.WrongPartitionSchemeError(
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'Root file system must be less than 16T')
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# TODO(kozhukalov): need to have additional logical verifications
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# maybe sizes and format of string values
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