lvm logging done
This commit is contained in:
parent
48ab7f953f
commit
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413
aif/disk/lvm.py
413
aif/disk/lvm.py
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@ -1,4 +1,7 @@
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import uuid
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import logging
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# import uuid
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##
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from lxml import etree
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##
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from . import _common
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import aif.utils
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@ -7,204 +10,25 @@ import aif.disk.luks as luks
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import aif.disk.mdadm as mdadm
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_logger = logging.getLogger(__name__)
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_BlockDev = _common.BlockDev
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class PV(object):
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def __init__(self, pv_xml, partobj):
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self.xml = pv_xml
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self.id = self.xml.attrib('id')
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self.source = self.xml.attrib('source')
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self.device = partobj
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if not isinstance(self.device, (block.Disk,
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block.Partition,
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luks.LUKS,
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mdadm.Array)):
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raise ValueError(('partobj must be of type '
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'aif.disk.block.Disk, '
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'aif.disk.block.Partition, '
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'aif.disk.luks.LUKS, or'
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'aif.disk.mdadm.Array'))
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_common.addBDPlugin('lvm')
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self.devpath = self.device.devpath
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self.is_pooled = False
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self.meta = None
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self._parseMeta()
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def _parseMeta(self):
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# Note, the "UUID" for LVM is *not* a true UUID (RFC4122) so we don't convert it.
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# https://unix.stackexchange.com/questions/173722/what-is-the-uuid-format-used-by-lvm
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# TODO: parity with lvm_fallback.PV._parseMeta
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# key names currently (probably) don't match and need to confirm the information's all present
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meta = {}
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try:
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_meta = _BlockDev.lvm.pvinfo(self.devpath)
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except _BlockDev.LVMError:
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self.meta = None
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self.is_pooled = False
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return(None)
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for k in dir(_meta):
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if k.startswith('_'):
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continue
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elif k in ('copy',):
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continue
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v = getattr(_meta, k)
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meta[k] = v
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self.meta = meta
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self.is_pooled = True
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return(None)
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def prepare(self):
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try:
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if not self.meta:
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self._parseMeta()
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if self.meta:
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vg = self.meta['vg_name']
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# LVM is SO. DUMB.
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# If you're using LVM, seriously - just switch your model to mdadm. It lets you do things like
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# remove disks live without restructuring the entire thing.
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# That said, because the config references partitions/disks/arrays/etc. created *in the same config*,
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# and it's all dependent on block devices defined in the thing, we can be reckless here.
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# I'd like to take the time now to remind you to NOT RUN AIF-NG ON A "LIVE" MACHINE.
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# At least until I can maybe find a better way to determine which LVs to reduce on multi-LV VGs
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# so I can *then* use lvresize in a balanced manner, vgreduce, and pvmove/pvremove and not kill
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# everything.
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# TODO.
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for lv in _BlockDev.lvm.lvs():
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if lv.vg_name == vg:
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_BlockDev.lvm.lvremove(vg, lv.lv_name)
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_BlockDev.lvm.vgreduce(vg)
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_BlockDev.lvm.vgremove(vg) # This *shouldn't* fail. In theory. But LVM is lel.
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_BlockDev.lvm.pvremove(self.devpath)
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# Or if I can get this working properly. Shame it isn't automagic.
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# Seems to kill the LV by dropping a PV under it. Makes sense, but STILL. LVM IS SO DUMB.
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# _BlockDev.lvm.vgdeactivate(vg)
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# _BlockDev.lvm.pvremove(self.devpath)
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# _BlockDev.lvm.vgreduce(vg)
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# _BlockDev.lvm.vgactivate(vg)
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##
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self.meta = None
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self.is_pooled = False
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except _BlockDev.LVMError:
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self.meta = None
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self.is_pooled = False
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opts = [_BlockDev.ExtraArg.new('--reportformat', 'json')]
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# FUCK. LVM. You can't *specify* a UUID.
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# u = uuid.uuid4()
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# opts.append(_BlockDev.ExtraArg.new('--uuid', str(u)))
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_BlockDev.lvm.pvcreate(self.devpath,
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0,
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0,
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opts)
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self._parseMeta()
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return(None)
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class VG(object):
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def __init__(self, vg_xml):
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self.xml = vg_xml
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self.id = self.xml.attrib('id')
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self.name = self.xml.attrib('name')
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self.pe_size = self.xml.attrib.get('extentSize', 0)
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if self.pe_size:
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x = dict(zip(('from_bgn', 'size', 'type'),
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aif.utils.convertSizeUnit(self.pe_size)))
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if x['type']:
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self.pe_size = aif.utils.size.convertStorage(self.pe_size,
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x['type'],
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target = 'B')
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if not aif.utils.isPowerofTwo(self.pe_size):
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raise ValueError('The PE size must be a power of two (in bytes)')
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self.lvs = []
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self.pvs = []
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# self.tags = []
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# for te in self.xml.findall('tags/tag'):
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# self.tags.append(te.text)
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_common.addBDPlugin('lvm')
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self.devpath = '/dev/{0}'.format(self.name)
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self.info = None
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self.created = False
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def addPV(self, pvobj):
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if not isinstance(pvobj, PV):
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raise ValueError('pvobj must be of type aif.disk.lvm.PV')
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pvobj.prepare()
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self.pvs.append(pvobj)
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return(None)
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def create(self):
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if not self.pvs:
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raise RuntimeError('Cannot create a VG with no PVs')
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opts = [_BlockDev.ExtraArg.new('--reportformat', 'json')]
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# FUCK. LVM. You can't *specify* a UUID.
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# u = uuid.uuid4()
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# opts.append(_BlockDev.ExtraArg.new('--uuid', str(u)))
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# for t in self.tags:
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# opts.append(_BlockDev.ExtraArg.new('--addtag', t))
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_BlockDev.lvm.vgcreate(self.name,
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[p.devpath for p in self.pvs],
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self.pe_size,
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opts)
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for pv in self.pvs:
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pv._parseMeta()
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self.created = True
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self.updateInfo()
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return(None)
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def createLV(self, lv_xml = None):
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if not self.created:
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raise RuntimeError('VG must be created before LVs can be added')
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# If lv_xml is None, we loop through our own XML.
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if lv_xml:
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lv = LV(lv_xml, self)
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lv.create()
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# self.lvs.append(lv)
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else:
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for le in self.xml.findall('logicalVolumes/lv'):
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lv = LV(le, self)
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lv.create()
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# self.lvs.append(lv)
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self.updateInfo()
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return(None)
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def start(self):
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_BlockDev.lvm.vgactivate(self.name)
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self.updateInfo()
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return(None)
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def stop(self):
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_BlockDev.lvm.vgdeactivate(self.name)
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self.updateInfo()
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return(None)
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def updateInfo(self):
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if not self.created:
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return(None)
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_info = _BlockDev.lvm.vginfo(self.name)
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# TODO: parity with lvm_fallback.VG.updateInfo
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# key names currently (probably) don't match and need to confirm the information's all present
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info = {}
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for k in dir(_info):
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if k.startswith('_'):
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continue
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elif k in ('copy',):
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continue
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v = getattr(_info, k)
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info[k] = v
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self.info = info
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return(None)
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class LV(object):
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def __init__(self, lv_xml, vgobj):
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self.xml = lv_xml
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_logger.debug('lv_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
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self.id = self.xml.attrib('id')
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self.name = self.xml.attrib('name')
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self.vg = vgobj
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self.qualified_name = '{0}/{1}'.format(self.vg.name, self.name)
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_logger.debug('Qualified name: {0}'.format(self.qualified_name))
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self.pvs = []
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if not isinstance(self.vg, VG):
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raise ValueError('vgobj must be of type aif.disk.lvm.VG')
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_logger.debug('vgobj must be of type aif.disk.lvm.VG')
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raise ValueError('Invalid vgobj type')
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_common.addBDPlugin('lvm')
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self.info = None
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self.devpath = '/dev/{0}/{1}'.format(self.vg.name, self.name)
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@ -216,10 +40,12 @@ class LV(object):
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self.pvs = []
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_indexed_pvs = {i.id: i for i in self.vg.pvs}
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for pe in self.xml.findall('pvMember'):
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_logger.debug('Found PV element: {0}'.format(etree.tostring(pe, with_tail = False).decode('utf-8')))
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pv_id = pe.attrib('source')
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if pv_id in _indexed_pvs.keys():
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self.pvs.append(_indexed_pvs[pv_id])
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if not self.pvs: # We get all in the VG instead since none were explicitly assigned
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_logger.debug('No PVs explicitly designated to VG; adding all.')
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self.pvs = self.vg.pvs
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# Size processing. We have to do this after indexing PVs.
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# If not x['type'], assume *extents*, not sectors
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@ -251,7 +77,8 @@ class LV(object):
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def create(self):
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if not self.pvs:
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raise RuntimeError('Cannot create LV with no associated LVs')
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_logger.error('Cannot create LV with no associated PVs')
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raise RuntimeError('Missing PVs')
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opts = [_BlockDev.ExtraArg.new('--reportformat', 'json')]
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# FUCK. LVM. You can't *specify* a UUID.
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# u = uuid.uuid4()
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@ -271,6 +98,7 @@ class LV(object):
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return(None)
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def start(self):
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_logger.info('Activating LV {0} in VG {1}.'.format(self.name, self.vg.name))
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_BlockDev.lvm.lvactivate(self.vg.name,
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self.name,
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True,
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@ -279,6 +107,7 @@ class LV(object):
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return(None)
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def stop(self):
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_logger.info('Deactivating LV {0} in VG {1}.'.format(self.name, self.vg.name))
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_BlockDev.lvm.lvdeactivate(self.vg.name,
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self.name,
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None)
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@ -287,6 +116,7 @@ class LV(object):
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def updateInfo(self):
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if not self.created:
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_logger.warning('Attempted to updateInfo on an LV not created yet.')
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return(None)
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_info = _BlockDev.lvm.lvinfo(self.vg.name, self.name)
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# TODO: parity with lvm_fallback.LV.updateInfo
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@ -300,4 +130,211 @@ class LV(object):
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v = getattr(_info, k)
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info[k] = v
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self.info = info
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_logger.debug('Rendered info: {0}'.format(info))
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return(None)
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class PV(object):
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def __init__(self, pv_xml, partobj):
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self.xml = pv_xml
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_logger.debug('pv_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
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self.id = self.xml.attrib('id')
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self.source = self.xml.attrib('source')
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self.device = partobj
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if not isinstance(self.device, (block.Disk,
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block.Partition,
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luks.LUKS,
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mdadm.Array)):
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_logger.error(('partobj must be of type '
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'aif.disk.block.Disk, '
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'aif.disk.block.Partition, '
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'aif.disk.luks.LUKS, or'
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'aif.disk.mdadm.Array.'))
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raise ValueError('Invalid partobj type')
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_common.addBDPlugin('lvm')
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self.devpath = self.device.devpath
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self.is_pooled = False
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self.meta = None
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self._parseMeta()
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def _parseMeta(self):
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# Note, the "UUID" for LVM is *not* a true UUID (RFC4122) so we don't convert it.
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# https://unix.stackexchange.com/questions/173722/what-is-the-uuid-format-used-by-lvm
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# TODO: parity with lvm_fallback.PV._parseMeta
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# key names currently (probably) don't match and need to confirm the information's all present
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meta = {}
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try:
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_meta = _BlockDev.lvm.pvinfo(self.devpath)
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except _BlockDev.LVMError:
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_logger.debug('PV device is not a PV yet.')
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self.meta = None
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self.is_pooled = False
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return(None)
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for k in dir(_meta):
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if k.startswith('_'):
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continue
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elif k in ('copy', ):
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continue
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v = getattr(_meta, k)
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meta[k] = v
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self.meta = meta
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_logger.debug('Rendered meta: {0}'.format(meta))
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self.is_pooled = True
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return(None)
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def prepare(self):
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try:
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if not self.meta:
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self._parseMeta()
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if self.meta:
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vg = self.meta['vg_name']
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# LVM is SO. DUMB.
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# If you're using LVM, seriously - just switch your model to mdadm. It lets you do things like
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# remove disks live without restructuring the entire thing.
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# That said, because the config references partitions/disks/arrays/etc. created *in the same config*,
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# and it's all dependent on block devices defined in the thing, we can be reckless here.
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# I'd like to take the time now to remind you to NOT RUN AIF-NG ON A "PRODUCTION"-STATE MACHINE.
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# At least until I can maybe find a better way to determine which LVs to reduce on multi-LV VGs
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# so I can *then* use lvresize in a balanced manner, vgreduce, and pvmove/pvremove and not kill
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# everything.
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# TODO.
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for lv in _BlockDev.lvm.lvs():
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if lv.vg_name == vg:
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_logger.info('Removing LV {0} from VG {1}.'.format(lv.lv_name, vg))
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_BlockDev.lvm.lvremove(vg, lv.lv_name)
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_logger.debug('Reducing VG {0}.'.format(vg))
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_BlockDev.lvm.vgreduce(vg)
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_logger.info('Removing VG {0}.'.format(vg))
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_BlockDev.lvm.vgremove(vg) # This *shouldn't* fail. In theory. But LVM is lel.
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_logger.info('Removing PV {0}.'.format(self.devpath))
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_BlockDev.lvm.pvremove(self.devpath)
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# Or if I can get this working properly. Shame it isn't automagic.
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# Seems to kill the LV by dropping a PV under it. Makes sense, but STILL. LVM IS SO DUMB.
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# _BlockDev.lvm.vgdeactivate(vg)
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# _BlockDev.lvm.pvremove(self.devpath)
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# _BlockDev.lvm.vgreduce(vg)
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# _BlockDev.lvm.vgactivate(vg)
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##
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self.meta = None
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self.is_pooled = False
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except _BlockDev.LVMError:
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self.meta = None
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self.is_pooled = False
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opts = [_BlockDev.ExtraArg.new('--reportformat', 'json')]
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# FUCK. LVM. You can't *specify* a UUID.
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# u = uuid.uuid4()
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# opts.append(_BlockDev.ExtraArg.new('--uuid', str(u)))
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_BlockDev.lvm.pvcreate(self.devpath,
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0,
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0,
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opts)
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_logger.info('Created PV {0} with opts {1}'.format(self.devpath, opts))
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self._parseMeta()
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return(None)
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class VG(object):
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def __init__(self, vg_xml):
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self.xml = vg_xml
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_logger.debug('vg_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
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self.id = self.xml.attrib('id')
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self.name = self.xml.attrib('name')
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self.pe_size = self.xml.attrib.get('extentSize', 0)
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if self.pe_size:
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x = dict(zip(('from_bgn', 'size', 'type'),
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aif.utils.convertSizeUnit(self.pe_size)))
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if x['type']:
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self.pe_size = aif.utils.size.convertStorage(self.pe_size,
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x['type'],
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target = 'B')
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if not aif.utils.isPowerofTwo(self.pe_size):
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_logger.error('The PE size must be a power of two (in bytes).')
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raise ValueError('Invalid PE value')
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self.lvs = []
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self.pvs = []
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# self.tags = []
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# for te in self.xml.findall('tags/tag'):
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# self.tags.append(te.text)
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_common.addBDPlugin('lvm')
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self.devpath = '/dev/{0}'.format(self.name)
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self.info = None
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self.created = False
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def addPV(self, pvobj):
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if not isinstance(pvobj, PV):
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_logger.error('pvobj must be of type aif.disk.lvm.PV.')
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raise ValueError('Invalid pvbobj type')
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pvobj.prepare()
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self.pvs.append(pvobj)
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return(None)
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def create(self):
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if not self.pvs:
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_logger.error('Cannot create a VG with no PVs.')
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raise RuntimeError('Missing PVs')
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opts = [_BlockDev.ExtraArg.new('--reportformat', 'json')]
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# FUCK. LVM. You can't *specify* a UUID.
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# u = uuid.uuid4()
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# opts.append(_BlockDev.ExtraArg.new('--uuid', str(u)))
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# for t in self.tags:
|
||||
# opts.append(_BlockDev.ExtraArg.new('--addtag', t))
|
||||
_BlockDev.lvm.vgcreate(self.name,
|
||||
[p.devpath for p in self.pvs],
|
||||
self.pe_size,
|
||||
opts)
|
||||
for pv in self.pvs:
|
||||
pv._parseMeta()
|
||||
self.created = True
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def createLV(self, lv_xml = None):
|
||||
if not self.created:
|
||||
_logger.info('Attempted to add an LV to a VG before it was created.')
|
||||
raise RuntimeError('LV before VG creation')
|
||||
# If lv_xml is None, we loop through our own XML.
|
||||
if lv_xml:
|
||||
_logger.debug('Explicit lv_xml specified: {0}'.format(etree.tostring(lv_xml,
|
||||
with_tail = False).decode('utf-8')))
|
||||
lv = LV(lv_xml, self)
|
||||
lv.create()
|
||||
# self.lvs.append(lv)
|
||||
else:
|
||||
for le in self.xml.findall('logicalVolumes/lv'):
|
||||
_logger.debug('Found lv element: {0}'.format(etree.tostring(le, with_tail = False).decode('utf-8')))
|
||||
lv = LV(le, self)
|
||||
lv.create()
|
||||
# self.lvs.append(lv)
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def start(self):
|
||||
_logger.info('Activating VG: {0}.'.format(self.name))
|
||||
_BlockDev.lvm.vgactivate(self.name)
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def stop(self):
|
||||
_logger.info('Deactivating VG: {0}.'.format(self.name))
|
||||
_BlockDev.lvm.vgdeactivate(self.name)
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def updateInfo(self):
|
||||
if not self.created:
|
||||
_logger.warning('Attempted to updateInfo on a VG not created yet.')
|
||||
return(None)
|
||||
_info = _BlockDev.lvm.vginfo(self.name)
|
||||
# TODO: parity with lvm_fallback.VG.updateInfo
|
||||
# key names currently (probably) don't match and need to confirm the information's all present
|
||||
info = {}
|
||||
for k in dir(_info):
|
||||
if k.startswith('_'):
|
||||
continue
|
||||
elif k in ('copy',):
|
||||
continue
|
||||
v = getattr(_info, k)
|
||||
info[k] = v
|
||||
self.info = info
|
||||
_logger.debug('Rendered info: {0}'.format(info))
|
||||
return(None)
|
||||
|
|
|
|||
|
|
@ -1,214 +1,32 @@
|
|||
import datetime
|
||||
import json
|
||||
import logging
|
||||
import subprocess
|
||||
##
|
||||
from lxml import etree
|
||||
##
|
||||
import aif.utils
|
||||
import aif.disk.block_fallback as block
|
||||
import aif.disk.luks_fallback as luks
|
||||
import aif.disk.mdadm_fallback as mdadm
|
||||
|
||||
|
||||
class PV(object):
|
||||
def __init__(self, pv_xml, partobj):
|
||||
self.xml = pv_xml
|
||||
self.id = self.xml.attrib('id')
|
||||
self.source = self.xml.attrib('source')
|
||||
self.device = partobj
|
||||
if not isinstance(self.device, (block.Disk,
|
||||
block.Partition,
|
||||
luks.LUKS,
|
||||
mdadm.Array)):
|
||||
raise ValueError(('partobj must be of type '
|
||||
'aif.disk.block.Disk, '
|
||||
'aif.disk.block.Partition, '
|
||||
'aif.disk.luks.LUKS, or'
|
||||
'aif.disk.mdadm.Array'))
|
||||
self.devpath = self.device.devpath
|
||||
self.is_pooled = False
|
||||
self.meta = None
|
||||
self._parseMeta()
|
||||
|
||||
def _parseMeta(self):
|
||||
# Note, the "UUID" for LVM is *not* a true UUID (RFC4122) so we don't convert it.
|
||||
# https://unix.stackexchange.com/questions/173722/what-is-the-uuid-format-used-by-lvm
|
||||
meta = {}
|
||||
cmd = ['pvs',
|
||||
'--binary',
|
||||
'--nosuffix',
|
||||
'--units', 'b',
|
||||
'--options', '+pvall',
|
||||
'--reportformat', 'json',
|
||||
self.devpath]
|
||||
_meta = subprocess.run(cmd, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
if _meta.returncode != 0:
|
||||
self.meta = None
|
||||
self.is_pooled = False
|
||||
return(None)
|
||||
_meta = json.loads(_meta.stdout.decode('utf-8'))['report'][0]['pv'][0]
|
||||
for k, v in _meta.items():
|
||||
# We *could* regex this but the pattern would be a little more complex than idea,
|
||||
# especially for such predictable strings.
|
||||
# These are ints.
|
||||
if k in ('dev_size', 'pe_start', 'pv_ba_size', 'pv_ba_start', 'pv_ext_vsn', 'pv_free', 'pv_major',
|
||||
'pv_mda_count', 'pv_mda_free', 'pv_mda_size', 'pv_mda_used_count', 'pv_minor', 'pv_pe_alloc_count',
|
||||
'pv_pe_alloc_count', 'pv_size', 'pv_used'):
|
||||
v = int(v)
|
||||
# These are boolean.
|
||||
elif k in ('pv_allocatable', 'pv_duplicate', 'pv_exported', 'pv_in_use', 'pv_missing'):
|
||||
v = (True if int(v) == 1 else False)
|
||||
# This is a list.
|
||||
elif k == 'pv_tags':
|
||||
v = [i.strip() for i in v.split(',') if i.strip() != '']
|
||||
elif v.strip() == '':
|
||||
v = None
|
||||
meta[k] = v
|
||||
self.meta = meta
|
||||
self.is_pooled = True
|
||||
return(None)
|
||||
|
||||
def prepare(self):
|
||||
if not self.meta:
|
||||
self._parseMeta()
|
||||
# *Technically*, we should vgreduce before pvremove, but eff it.
|
||||
cmd = ['pvremove',
|
||||
'--force', '--force',
|
||||
'--reportformat', 'json',
|
||||
self.devpath]
|
||||
subprocess.run(cmd)
|
||||
cmd = ['pvcreate',
|
||||
'--reportformat', 'json',
|
||||
self.devpath]
|
||||
subprocess.run(cmd)
|
||||
self._parseMeta()
|
||||
return(None)
|
||||
|
||||
|
||||
class VG(object):
|
||||
def __init__(self, vg_xml):
|
||||
self.xml = vg_xml
|
||||
self.id = self.xml.attrib('id')
|
||||
self.name = self.xml.attrib('name')
|
||||
self.pe_size = self.xml.attrib.get('extentSize', 0)
|
||||
if self.pe_size:
|
||||
x = dict(zip(('from_bgn', 'size', 'type'),
|
||||
aif.utils.convertSizeUnit(self.pe_size)))
|
||||
if x['type']:
|
||||
self.pe_size = aif.utils.size.convertStorage(self.pe_size,
|
||||
x['type'],
|
||||
target = 'B')
|
||||
if not aif.utils.isPowerofTwo(self.pe_size):
|
||||
raise ValueError('The PE size must be a power of two (in bytes)')
|
||||
self.lvs = []
|
||||
self.pvs = []
|
||||
# self.tags = []
|
||||
# for te in self.xml.findall('tags/tag'):
|
||||
# self.tags.append(te.text)
|
||||
self.devpath = None
|
||||
self.devpath = self.name
|
||||
self.info = None
|
||||
self.created = False
|
||||
|
||||
def addPV(self, pvobj):
|
||||
if not isinstance(pvobj, PV):
|
||||
raise ValueError('pvobj must be of type aif.disk.lvm.PV')
|
||||
pvobj.prepare()
|
||||
self.pvs.append(pvobj)
|
||||
return(None)
|
||||
|
||||
def create(self):
|
||||
if not self.pvs:
|
||||
raise RuntimeError('Cannot create a VG with no PVs')
|
||||
cmd = ['vgcreate',
|
||||
'--reportformat', 'json',
|
||||
'--physicalextentsize', '{0}b'.format(self.pe_size),
|
||||
self.name]
|
||||
for pv in self.pvs:
|
||||
cmd.append(pv.devpath)
|
||||
subprocess.run(cmd)
|
||||
for pv in self.pvs:
|
||||
pv._parseMeta()
|
||||
self.created = True
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def createLV(self, lv_xml = None):
|
||||
if not self.created:
|
||||
raise RuntimeError('VG must be created before LVs can be added')
|
||||
# If lv_xml is None, we loop through our own XML.
|
||||
if lv_xml:
|
||||
lv = LV(lv_xml, self)
|
||||
lv.create()
|
||||
# self.lvs.append(lv)
|
||||
else:
|
||||
for le in self.xml.findall('logicalVolumes/lv'):
|
||||
lv = LV(le, self)
|
||||
lv.create()
|
||||
# self.lvs.append(lv)
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def start(self):
|
||||
cmd = ['vgchange',
|
||||
'--activate', 'y',
|
||||
'--reportformat', 'json',
|
||||
self.name]
|
||||
subprocess.run(cmd)
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def stop(self):
|
||||
cmd = ['vgchange',
|
||||
'--activate', 'n',
|
||||
'--reportformat', 'json',
|
||||
self.name]
|
||||
subprocess.run(cmd)
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def updateInfo(self):
|
||||
info = {}
|
||||
cmd = ['vgs',
|
||||
'--binary',
|
||||
'--nosuffix',
|
||||
'--units', 'b',
|
||||
'--options', '+vgall',
|
||||
'--reportformat', 'json',
|
||||
self.name]
|
||||
_info = subprocess.run(cmd, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
if _info.returncode != 0:
|
||||
self.info = None
|
||||
self.created = False
|
||||
return(None)
|
||||
_info = json.loads(_info.stdout.decode('utf-8'))['report'][0]['vg'][0]
|
||||
for k, v in _info.items():
|
||||
# ints
|
||||
if k in ('lv_count', 'max_lv', 'max_pv', 'pv_count', 'snap_count', 'vg_extent_count', 'vg_extent_size',
|
||||
'vg_free', 'vg_free_count', 'vg_mda_count', 'vg_mda_free', 'vg_mda_size', 'vg_mda_used_count',
|
||||
'vg_missing_pv_count', 'vg_seqno', 'vg_size'):
|
||||
v = int(v)
|
||||
# booleans
|
||||
elif k in ('vg_clustered', 'vg_exported', 'vg_extendable', 'vg_partial', 'vg_shared'):
|
||||
v = (True if int(v) == 1 else False)
|
||||
# lists
|
||||
elif k in ('vg_lock_args', 'vg_permissions', 'vg_tags'): # not 100% sure about vg_permissions...
|
||||
v = [i.strip() for i in v.split(',') if i.strip() != '']
|
||||
elif v.strip() == '':
|
||||
v = None
|
||||
info[k] = v
|
||||
self.info = info
|
||||
return(None)
|
||||
_logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
class LV(object):
|
||||
def __init__(self, lv_xml, vgobj):
|
||||
self.xml = lv_xml
|
||||
_logger.debug('lv_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
|
||||
self.id = self.xml.attrib('id')
|
||||
self.name = self.xml.attrib('name')
|
||||
self.vg = vgobj
|
||||
self.qualified_name = '{0}/{1}'.format(self.vg.name, self.name)
|
||||
_logger.debug('Qualified name: {0}'.format(self.qualified_name))
|
||||
self.pvs = []
|
||||
if not isinstance(self.vg, VG):
|
||||
raise ValueError('vgobj must be of type aif.disk.lvm.VG')
|
||||
_logger.debug('vgobj must be of type aif.disk.lvm.VG')
|
||||
raise ValueError('Invalid vgobj type')
|
||||
self.info = None
|
||||
self.devpath = '/dev/{0}/{1}'.format(self.vg.name, self.name)
|
||||
self.created = False
|
||||
|
|
@ -219,10 +37,12 @@ class LV(object):
|
|||
self.pvs = []
|
||||
_indexed_pvs = {i.id: i for i in self.vg.pvs}
|
||||
for pe in self.xml.findall('pvMember'):
|
||||
_logger.debug('Found PV element: {0}'.format(etree.tostring(pe, with_tail = False).decode('utf-8')))
|
||||
pv_id = pe.attrib('source')
|
||||
if pv_id in _indexed_pvs.keys():
|
||||
self.pvs.append(_indexed_pvs[pv_id])
|
||||
if not self.pvs: # We get all in the VG instead since none were explicitly assigned
|
||||
_logger.debug('No PVs explicitly designated to VG; adding all.')
|
||||
self.pvs = self.vg.pvs
|
||||
# Size processing. We have to do this after indexing PVs.
|
||||
# If not x['type'], assume *extents*, not sectors
|
||||
|
|
@ -254,15 +74,26 @@ class LV(object):
|
|||
|
||||
def create(self):
|
||||
if not self.pvs:
|
||||
raise RuntimeError('Cannot create LV with no associated LVs')
|
||||
cmd = ['lvcreate',
|
||||
'--reportformat', 'json']
|
||||
_logger.error('Cannot create LV with no associated PVs')
|
||||
raise RuntimeError('Missing PVs')
|
||||
cmd_str = ['lvcreate',
|
||||
'--reportformat', 'json']
|
||||
if self.size > 0:
|
||||
cmd.extend(['--size', self.size])
|
||||
cmd_str.extend(['--size', self.size])
|
||||
elif self.size == 0:
|
||||
cmd.extend(['--extents', '100%FREE'])
|
||||
cmd.extend([self.name,
|
||||
self.vg.name])
|
||||
cmd_str.extend(['--extents', '100%FREE'])
|
||||
cmd_str.extend([self.name,
|
||||
self.vg.name])
|
||||
cmd = subprocess.run(cmd_str, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(cmd.args)))
|
||||
if cmd.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
raise RuntimeError('Failed to create LV successfully')
|
||||
self.vg.lvs.append(self)
|
||||
self.created = True
|
||||
self.updateInfo()
|
||||
|
|
@ -270,24 +101,47 @@ class LV(object):
|
|||
return(None)
|
||||
|
||||
def start(self):
|
||||
cmd = ['lvchange',
|
||||
'--activate', 'y',
|
||||
'--reportformat', 'json',
|
||||
self.qualified_name]
|
||||
subprocess.run(cmd)
|
||||
_logger.info('Activating LV {0} in VG {1}.'.format(self.name, self.vg.name))
|
||||
cmd_str = ['lvchange',
|
||||
'--activate', 'y',
|
||||
'--reportformat', 'json',
|
||||
self.qualified_name]
|
||||
cmd = subprocess.run(cmd_str, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(cmd.args)))
|
||||
if cmd.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
raise RuntimeError('Failed to activate LV successfully')
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def stop(self):
|
||||
cmd = ['lvchange',
|
||||
'--activate', 'n',
|
||||
'--reportformat', 'json',
|
||||
self.qualified_name]
|
||||
subprocess.run(cmd)
|
||||
_logger.info('Deactivating LV {0} in VG {1}.'.format(self.name, self.vg.name))
|
||||
cmd_str = ['lvchange',
|
||||
'--activate', 'n',
|
||||
'--reportformat', 'json',
|
||||
self.qualified_name]
|
||||
cmd = subprocess.run(cmd_str, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(cmd.args)))
|
||||
if cmd.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
raise RuntimeError('Failed to deactivate successfully')
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def updateInfo(self):
|
||||
if not self.created:
|
||||
_logger.warning('Attempted to updateInfo on an LV not created yet.')
|
||||
return(None)
|
||||
info = {}
|
||||
cmd = ['lvs',
|
||||
'--binary',
|
||||
|
|
@ -297,7 +151,14 @@ class LV(object):
|
|||
'--reportformat', 'json',
|
||||
self.qualified_name]
|
||||
_info = subprocess.run(cmd, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(_info.args)))
|
||||
if _info.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(_info.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
self.info = None
|
||||
self.created = False
|
||||
return(None)
|
||||
|
|
@ -330,4 +191,271 @@ class LV(object):
|
|||
v = None
|
||||
info[k] = v
|
||||
self.info = info
|
||||
_logger.debug('Rendered info: {0}'.format(info))
|
||||
return(None)
|
||||
|
||||
|
||||
class PV(object):
|
||||
def __init__(self, pv_xml, partobj):
|
||||
self.xml = pv_xml
|
||||
_logger.debug('pv_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
|
||||
self.id = self.xml.attrib('id')
|
||||
self.source = self.xml.attrib('source')
|
||||
self.device = partobj
|
||||
if not isinstance(self.device, (block.Disk,
|
||||
block.Partition,
|
||||
luks.LUKS,
|
||||
mdadm.Array)):
|
||||
_logger.error(('partobj must be of type '
|
||||
'aif.disk.block.Disk, '
|
||||
'aif.disk.block.Partition, '
|
||||
'aif.disk.luks.LUKS, or'
|
||||
'aif.disk.mdadm.Array.'))
|
||||
raise ValueError('Invalid partobj type')
|
||||
self.devpath = self.device.devpath
|
||||
self.is_pooled = False
|
||||
self.meta = None
|
||||
self._parseMeta()
|
||||
|
||||
def _parseMeta(self):
|
||||
# Note, the "UUID" for LVM is *not* a true UUID (RFC4122) so we don't convert it.
|
||||
# https://unix.stackexchange.com/questions/173722/what-is-the-uuid-format-used-by-lvm
|
||||
meta = {}
|
||||
cmd = ['pvs',
|
||||
'--binary',
|
||||
'--nosuffix',
|
||||
'--units', 'b',
|
||||
'--options', '+pvall',
|
||||
'--reportformat', 'json',
|
||||
self.devpath]
|
||||
_meta = subprocess.run(cmd, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(_meta.args)))
|
||||
if _meta.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(_meta.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
self.meta = None
|
||||
self.is_pooled = False
|
||||
return(None)
|
||||
_meta = json.loads(_meta.stdout.decode('utf-8'))['report'][0]['pv'][0]
|
||||
for k, v in _meta.items():
|
||||
# We *could* regex this but the pattern would be a little more complex than idea,
|
||||
# especially for such predictable strings.
|
||||
# These are ints.
|
||||
if k in ('dev_size', 'pe_start', 'pv_ba_size', 'pv_ba_start', 'pv_ext_vsn', 'pv_free', 'pv_major',
|
||||
'pv_mda_count', 'pv_mda_free', 'pv_mda_size', 'pv_mda_used_count', 'pv_minor', 'pv_pe_alloc_count',
|
||||
'pv_pe_alloc_count', 'pv_size', 'pv_used'):
|
||||
v = int(v)
|
||||
# These are boolean.
|
||||
elif k in ('pv_allocatable', 'pv_duplicate', 'pv_exported', 'pv_in_use', 'pv_missing'):
|
||||
v = (True if int(v) == 1 else False)
|
||||
# This is a list.
|
||||
elif k == 'pv_tags':
|
||||
v = [i.strip() for i in v.split(',') if i.strip() != '']
|
||||
elif v.strip() == '':
|
||||
v = None
|
||||
meta[k] = v
|
||||
self.meta = meta
|
||||
self.is_pooled = True
|
||||
_logger.debug('Rendered meta: {0}'.format(meta))
|
||||
return(None)
|
||||
|
||||
def prepare(self):
|
||||
if not self.meta:
|
||||
self._parseMeta()
|
||||
# *Technically*, we should vgreduce before pvremove, but eff it.
|
||||
cmd_str = ['pvremove',
|
||||
'--force', '--force',
|
||||
'--reportformat', 'json',
|
||||
self.devpath]
|
||||
cmd = subprocess.run(cmd_str, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(cmd.args)))
|
||||
if cmd.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
raise RuntimeError('Failed to remove PV successfully')
|
||||
cmd_str = ['pvcreate',
|
||||
'--reportformat', 'json',
|
||||
self.devpath]
|
||||
cmd = subprocess.run(cmd_str)
|
||||
_logger.info('Executed: {0}'.format(' '.join(cmd.args)))
|
||||
if cmd.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
raise RuntimeError('Failed to format successfully')
|
||||
self._parseMeta()
|
||||
return(None)
|
||||
|
||||
|
||||
class VG(object):
|
||||
def __init__(self, vg_xml):
|
||||
self.xml = vg_xml
|
||||
_logger.debug('vg_xml: {0}'.format(etree.tostring(self.xml, with_tail = False).decode('utf-8')))
|
||||
self.id = self.xml.attrib('id')
|
||||
self.name = self.xml.attrib('name')
|
||||
self.pe_size = self.xml.attrib.get('extentSize', 0)
|
||||
if self.pe_size:
|
||||
x = dict(zip(('from_bgn', 'size', 'type'),
|
||||
aif.utils.convertSizeUnit(self.pe_size)))
|
||||
if x['type']:
|
||||
self.pe_size = aif.utils.size.convertStorage(self.pe_size,
|
||||
x['type'],
|
||||
target = 'B')
|
||||
if not aif.utils.isPowerofTwo(self.pe_size):
|
||||
_logger.error('The PE size must be a power of two (in bytes).')
|
||||
raise ValueError('Invalid PE value')
|
||||
self.lvs = []
|
||||
self.pvs = []
|
||||
# self.tags = []
|
||||
# for te in self.xml.findall('tags/tag'):
|
||||
# self.tags.append(te.text)
|
||||
self.devpath = self.name
|
||||
self.info = None
|
||||
self.created = False
|
||||
|
||||
def addPV(self, pvobj):
|
||||
if not isinstance(pvobj, PV):
|
||||
_logger.error('pvobj must be of type aif.disk.lvm.PV.')
|
||||
raise ValueError('Invalid pvbobj type')
|
||||
pvobj.prepare()
|
||||
self.pvs.append(pvobj)
|
||||
return(None)
|
||||
|
||||
def create(self):
|
||||
if not self.pvs:
|
||||
_logger.error('Cannot create a VG with no PVs.')
|
||||
raise RuntimeError('Missing PVs')
|
||||
cmd_str = ['vgcreate',
|
||||
'--reportformat', 'json',
|
||||
'--physicalextentsize', '{0}b'.format(self.pe_size),
|
||||
self.name]
|
||||
for pv in self.pvs:
|
||||
cmd_str.append(pv.devpath)
|
||||
cmd = subprocess.run(cmd_str, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(cmd.args)))
|
||||
if cmd.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
raise RuntimeError('Failed to create VG successfully')
|
||||
for pv in self.pvs:
|
||||
pv._parseMeta()
|
||||
self.created = True
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def createLV(self, lv_xml = None):
|
||||
if not self.created:
|
||||
_logger.info('Attempted to add an LV to a VG before it was created.')
|
||||
raise RuntimeError('LV before VG creation')
|
||||
# If lv_xml is None, we loop through our own XML.
|
||||
if lv_xml:
|
||||
_logger.debug('Explicit lv_xml specified: {0}'.format(etree.tostring(lv_xml,
|
||||
with_tail = False).decode('utf-8')))
|
||||
lv = LV(lv_xml, self)
|
||||
lv.create()
|
||||
# self.lvs.append(lv)
|
||||
else:
|
||||
for le in self.xml.findall('logicalVolumes/lv'):
|
||||
_logger.debug('Found lv element: {0}'.format(etree.tostring(le, with_tail = False).decode('utf-8')))
|
||||
lv = LV(le, self)
|
||||
lv.create()
|
||||
# self.lvs.append(lv)
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def start(self):
|
||||
_logger.info('Activating VG: {0}.'.format(self.name))
|
||||
cmd_str = ['vgchange',
|
||||
'--activate', 'y',
|
||||
'--reportformat', 'json',
|
||||
self.name]
|
||||
cmd = subprocess.run(cmd_str, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(cmd.args)))
|
||||
if cmd.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
raise RuntimeError('Failed to activate VG successfully')
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def stop(self):
|
||||
_logger.info('Deactivating VG: {0}.'.format(self.name))
|
||||
cmd_str = ['vgchange',
|
||||
'--activate', 'n',
|
||||
'--reportformat', 'json',
|
||||
self.name]
|
||||
cmd = subprocess.run(cmd_str, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(cmd.args)))
|
||||
if cmd.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(cmd, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
raise RuntimeError('Failed to deactivate VG successfully')
|
||||
self.updateInfo()
|
||||
return(None)
|
||||
|
||||
def updateInfo(self):
|
||||
if not self.created:
|
||||
_logger.warning('Attempted to updateInfo on a VG not created yet.')
|
||||
return(None)
|
||||
info = {}
|
||||
cmd_str = ['vgs',
|
||||
'--binary',
|
||||
'--nosuffix',
|
||||
'--units', 'b',
|
||||
'--options', '+vgall',
|
||||
'--reportformat', 'json',
|
||||
self.name]
|
||||
_info = subprocess.run(cmd_str, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
|
||||
_logger.info('Executed: {0}'.format(' '.join(_info.args)))
|
||||
if _info.returncode != 0:
|
||||
_logger.warning('Command returned non-zero status')
|
||||
_logger.debug('Exit status: {0}'.format(str(_info.returncode)))
|
||||
for a in ('stdout', 'stderr'):
|
||||
x = getattr(_info, a)
|
||||
if x:
|
||||
_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
|
||||
self.info = None
|
||||
self.created = False
|
||||
return(None)
|
||||
_info = json.loads(_info.stdout.decode('utf-8'))['report'][0]['vg'][0]
|
||||
for k, v in _info.items():
|
||||
# ints
|
||||
if k in ('lv_count', 'max_lv', 'max_pv', 'pv_count', 'snap_count', 'vg_extent_count', 'vg_extent_size',
|
||||
'vg_free', 'vg_free_count', 'vg_mda_count', 'vg_mda_free', 'vg_mda_size', 'vg_mda_used_count',
|
||||
'vg_missing_pv_count', 'vg_seqno', 'vg_size'):
|
||||
v = int(v)
|
||||
# booleans
|
||||
elif k in ('vg_clustered', 'vg_exported', 'vg_extendable', 'vg_partial', 'vg_shared'):
|
||||
v = (True if int(v) == 1 else False)
|
||||
# lists
|
||||
elif k in ('vg_lock_args', 'vg_permissions', 'vg_tags'): # not 100% sure about vg_permissions...
|
||||
v = [i.strip() for i in v.split(',') if i.strip() != '']
|
||||
elif v.strip() == '':
|
||||
v = None
|
||||
info[k] = v
|
||||
self.info = info
|
||||
_logger.debug('Rendered info: {0}'.format(info))
|
||||
return(None)
|
||||
|
|
|
|||
Loading…
Reference in New Issue