def create(self, option=None):
"""
Create the dataset with options.
"""
if option is None:
cmd = [rcEnv.syspaths.zfs, 'create', self.name]
else:
cmd = [rcEnv.syspaths.zfs, 'create'] + option + [self.name]
ret, _, _ = vcall(cmd, log=self.log)
if ret == 0:
return True
else:
return False
def rename(self, name=None, option=None):
"""
Rename the dataset.
"""
if option is None:
cmd = [rcEnv.syspaths.zfs, 'rename', self.name, name]
else:
cmd = [rcEnv.syspaths.zfs, 'rename'] + option + [self.name, name]
ret, _, _ = vcall(cmd, log=self.log)
if ret == 0:
return True
else:
return False
def setprop(self, propname, propval, err_to_warn=False, err_to_info=False):
"""
Set Dataset property value.
Return True is success else return False.
"""
cmd = [rcEnv.syspaths.zfs, 'set', propname + '=' + propval, self.name]
ret, out, err = vcall(cmd,
log=self.log,
err_to_warn=err_to_warn,
err_to_info=err_to_info)
if ret == 0:
return True
else:
return False
def clone(self, name, option=None):
"""
Clone the dataset with options
Return the clone dataset object.
Return False on failure.
"""
if option is None:
cmd = [rcEnv.syspaths.zfs, 'clone', self.name, name]
else:
cmd = [rcEnv.syspaths.zfs, 'clone'] + option + [self.name, name]
ret, _, _ = vcall(cmd, log=self.log)
if ret == 0:
return Dataset(name)
else:
return False
def snapshot(self, snapname=None, recursive=False):
"""
Snapshot the dataset.
Return the snapshot dataset object.
Return False on error.
"""
if snapname is None:
raise ex.excError("snapname should be defined")
snapdataset = self.name + "@" + snapname
cmd = [rcEnv.syspaths.zfs, 'snapshot']
if recursive:
cmd.append("-r")
cmd.append(snapdataset)
ret, _, _ = vcall(cmd, log=self.log)
if ret == 0:
return Dataset(snapdataset)
else:
return False
def zfs_setprop(dataset='undef_ds',
propname='undef_prop',
propval='undef_val',
log=None):
"""
Set the dataset property <propname> to value <propval>.
"""
current = zfs_getprop(dataset, propname)
if current == "":
# dataset does not exist
return False
if current == propval:
return True
cmd = [rcEnv.syspaths.zfs, 'set', propname + '=' + propval, dataset]
ret, _, _ = vcall(cmd, log=log)
if ret == 0:
return True
else:
return False
def vcall(self, cmd):
if self.node is not None:
cmd = [' '.join(cmd)]
cmd = rcEnv.rsh.split() + [self.node] + cmd
return vcall(cmd, log=self.log)
def vcall(self, *args, **kwargs):
"""
Wrap vcall, setting the resource logger
"""
kwargs["log"] = self.log
return vcall(*args, **kwargs)