7730a743bb
Fuel agent is a bunch of tools which are supposed to be placed on bootstrap image and used for node discovering and image based provisioning. Implements: blueprint image-based-provisioning Change-Id: I946decd50c51e6db767401682d9effbe3cf42bed
220 lines
8.5 KiB
Python
220 lines
8.5 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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from fuel_agent.drivers import ks_spaces_validator
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from fuel_agent import errors
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from fuel_agent import objects
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from fuel_agent.openstack.common import log as logging
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from fuel_agent.utils import hardware_utils as hu
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LOG = logging.getLogger(__name__)
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def match_device(hu_disk, ks_disk):
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"""Tries to figure out if hu_disk got from hu.list_block_devices
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and ks_spaces_disk given correspond to the same disk device. This
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is the simplified version of hu.match_device
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:param hu_disk: A dict representing disk device how
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it is given by list_block_devices method.
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:param ks_disk: A dict representing disk device according to
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ks_spaces format.
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:returns: True if hu_disk matches ks_spaces_disk else False.
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"""
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uspec = hu_disk['uspec']
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# True if at least one by-id link matches ks_disk
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if ('DEVLINKS' in uspec and 'extra' in ks_disk
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and any(x.startswith('/dev/disk/by-id') for x in
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set(uspec['DEVLINKS']) &
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set(['/dev/%s' % l for l in ks_disk['extra']]))):
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return True
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# True if one of DEVLINKS matches ks_disk id
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if ('DEVLINKS' in uspec and 'id' in ks_disk
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and '/dev/%s' % ks_disk['id'] in uspec['DEVLINKS']):
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return True
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return False
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class Nailgun(object):
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def __init__(self, data):
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# Here data is expected to be raw provisioning data
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# how it is given by nailgun
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self.data = data
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def partition_data(self):
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return self.data['ks_meta']['pm_data']['ks_spaces']
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@property
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def ks_disks(self):
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disk_filter = lambda x: x['type'] == 'disk' and x['size'] > 0
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return filter(disk_filter, self.partition_data())
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@property
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def ks_vgs(self):
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vg_filter = lambda x: x['type'] == 'vg'
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self.ks_vgs = filter(vg_filter, self.partition_data())
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@property
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def hu_disks(self):
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"""Actual disks which are available on this node
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it is a list of dicts which are formatted other way than
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ks_spaces disks. To match both of those formats use
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_match_device method.
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"""
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if not getattr(self, '_hu_disks', None):
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self._hu_disks = hu.list_block_devices(disks=True)
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return self._hu_disks
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def _disk_dev(self, ks_disk):
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# first we try to find a device that matches ks_disk
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# comparing by-id and by-path links
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matched = [hu_disk['device'] for hu_disk in self.hu_disks
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if match_device(hu_disk, ks_disk)]
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# if we can not find a device by its by-id and by-path links
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# we try to find a device by its name
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fallback = [hu_disk['device'] for hu_disk in self.hu_disks
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if '/dev/%s' % ks_disk['name'] == hu_disk['device']]
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found = matched or fallback
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if not found or len(found) > 1:
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raise errors.DiskNotFoundError(
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'Disk not found: %s' % ks_disk['name'])
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return found[0]
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def _getlabel(self, label):
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if not label:
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return ''
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# XFS will refuse to format a partition if the
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# disk label is > 12 characters.
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return ' -L {0} '.format(label[:12])
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def partition_scheme(self):
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data = self.partition_data()
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ks_spaces_validator.validate(data)
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partition_scheme = objects.PartitionScheme()
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for disk in enumerate(self.ks_disks):
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parted = partition_scheme.add_parted(
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name=self._disk_dev(disk), label='gpt')
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# legacy boot partition
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parted.add_partition(size=24, flags=['bios_grub'])
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# uefi partition (for future use)
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parted.add_partition(size=200)
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for volume in disk['volumes']:
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if volume['size'] <= 0:
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continue
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if volume['type'] in ('partition', 'pv', 'raid'):
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prt = parted.add_partition(size=volume['size'])
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if volume['type'] == 'partition':
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if 'partition_guid' in volume:
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prt.set_guid(volume['partition_guid'])
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if 'mount' in volume and volume['mount'] != 'none':
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partition_scheme.add_fs(
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device=prt.name, mount=volume['mount'],
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fs_type=volume.get('file_system', 'xfs'),
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fs_label=self._getlabel(volume.get('disk_label')))
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if volume['type'] == 'pv':
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partition_scheme.vg_attach_by_name(
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pvname=prt.name, vgname=volume['vg'])
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if volume['type'] == 'raid':
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if 'mount' in volume and volume['mount'] != 'none':
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partition_scheme.md_attach_by_mount(
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device=prt.name, mount=volume['mount'],
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fs_type=volume.get('file_system', 'xfs'),
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fs_label=self._getlabel(volume.get('disk_label')))
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# this partition will be used to put there configdrive image
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if partition_scheme.configdrive_device() is None:
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parted.add_partition(size=20, configdrive=True)
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for vg in enumerate(self.ks_vgs):
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for volume in vg['volumes']:
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if volume['size'] <= 0:
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continue
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if volume['type'] == 'lv':
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lv = partition_scheme.add_lv(name=volume['name'],
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vgname=vg['id'],
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size=volume['size'])
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if 'mount' in volume and volume['mount'] != 'none':
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partition_scheme.add_fs(
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device=lv.device_name, mount=volume['mount'],
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fs_type=volume.get('file_system', 'xfs'),
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fs_label=self._getlabel(volume.get('disk_label')))
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return partition_scheme
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def configdrive_scheme(self):
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data = self.data
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configdrive_scheme = objects.ConfigDriveScheme()
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admin_interface = filter(
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lambda x: (x['mac_address'] ==
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data['kernel_options']['netcfg/choose_interface']),
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[spec.update(name=name) for name, spec
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in data['interfaces'].iteritems()])[0]
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configdrive_scheme.set_common(
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ssh_auth_key=data['ks_meta']['auth_key'],
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hostname=data['hostname'],
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fqdn=data['hostname'],
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name_servers=data['name_servers'],
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search_domain=data['name_servers_search'],
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master_ip=data['ks_meta']['master_ip'],
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master_url='http:/%s:8000/api' % self.data['master_ip'],
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udevrules=data['kernel_options']['udevrules'],
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admin_mac=data['kernel_options']['netcfg/choose_interface'],
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admin_ip=admin_interface['ip_address'],
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admin_mask=admin_interface['netmask'],
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admin_iface_name=admin_interface['name'],
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timezone=data['ks_meta']['timezone'],
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)
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configdrive_scheme.set_puppet(
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master=data['ks_meta']['puppet_master']
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)
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configdrive_scheme.set_mcollective(
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pskey=data['ks_meta']['mco_pskey'],
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vhost=data['ks_meta']['mco_vhost'],
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host=data['ks_meta']['mco_host'],
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user=data['ks_meta']['mco_host'],
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password=data['ks_meta']['mco_password'],
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connector=data['ks_meta']['mco_connector']
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)
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configdrive_scheme.set_profile(profile=data['profile'].split('_')[0])
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return configdrive_scheme
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def image_scheme(self, partition_scheme):
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data = self.data
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image_scheme = objects.ImageScheme()
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image_scheme.add_image(
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uri=data['ks_meta']['image_uri'],
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target_device=partition_scheme.root_device(),
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image_format=data['ks_meta']['image_format'],
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container=data['ks_meta']['image_container'],
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size=data['ks_meta'].get('image_size'),
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)
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return image_scheme
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