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"""
A Cobbler Profile. A profile is a reference to a distribution, possibly some kernel options, possibly some Virt options, and some kickstart data.
Copyright 2006, Red Hat, Inc
Michael DeHaan <mdehaan@redhat.com>
This software may be freely redistributed under the terms of the GNU
general public license.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
"""
import utils
import item
from cexceptions import *
from rhpl.translate import _, N_, textdomain, utf8
class Profile(item.Item):
TYPE_NAME = _("profile")
def make_clone(self):
ds = self.to_datastruct()
cloned = Profile(self.config)
cloned.from_datastruct(ds)
return cloned
def clear(self,is_subobject=False):
"""
Reset this object.
"""
self.name = None
self.distro = (None, '<<inherit>>')[is_subobject]
self.kickstart = (self.settings.default_kickstart, '<<inherit>>')[is_subobject]
self.kernel_options = ({}, '<<inherit>>')[is_subobject]
self.ks_meta = ({}, '<<inherit>>')[is_subobject]
self.virt_file_size = (5, '<<inherit>>')[is_subobject]
self.virt_ram = (512, '<<inherit>>')[is_subobject]
self.repos = ("", '<<inherit>>')[is_subobject]
def from_datastruct(self,seed_data):
"""
Load this object's properties based on seed_data
"""
self.parent = self.load_item(seed_data,'parent')
self.name = self.load_item(seed_data,'name')
self.distro = self.load_item(seed_data,'distro')
self.kickstart = self.load_item(seed_data,'kickstart')
self.kernel_options = self.load_item(seed_data,'kernel_options')
self.ks_meta = self.load_item(seed_data,'ks_meta')
self.repos = self.load_item(seed_data,'repos', [])
# backwards compatibility
if type(self.repos) != list:
self.set_repos(self.repos)
# virt specific
self.virt_ram = self.load_item(seed_data,'virt_ram')
self.virt_file_size = self.load_item(seed_data,'virt_file_size')
# backwards compatibility -- convert string entries to dicts for storage
if self.kernel_options != "<<inherit>>" and type(self.kernel_options) != dict:
self.set_kernel_options(self.kernel_options)
if self.ks_meta != "<<inherit>>" and type(self.ks_meta) != dict:
self.set_ksmeta(self.ks_meta)
return self
def set_parent(self,parent_name):
"""
Instead of a --distro, set the parent of this object to another profile
and use the values from the parent instead of this one where the values
for this profile aren't filled in, and blend them together where they
are hashes. Basically this enables profile inheritance. To use this,
the object MUST have been constructed with is_subobject=True or the
default values for everything will be screwed up and this will likely NOT
work. So, API users -- make sure you pass is_subobject=True into the
constructor when using this.
"""
if parent_name == self.name:
# check must be done in two places as set_parent could be called before/after
# set_name...
raise CX(_("self parentage is weird"))
found = self.config.profiles().find(parent_name)
if found is None:
raise CX(_("profile %s not found, inheritance not possible") % parent_name)
self.parent = parent_name
def set_distro(self,distro_name):
"""
Sets the distro. This must be the name of an existing
Distro object in the Distros collection.
"""
if self.config.distros().find(distro_name):
self.distro = distro_name
return True
raise CX(_("distribution not found"))
def set_repos(self,repos):
if repos == "<<inherit>>":
self.repos = "<<inherit>>"
return
if type(repos) != list:
# allow backwards compatibility support of string input
repolist = repos.split(None)
else:
repolist = repos
ok = True
try:
repolist.remove('')
except:
pass
for r in repolist:
if not self.config.repos().find(r):
ok = False
break
if ok:
self.repos = repolist
else:
raise CX(_("repository not found"))
def set_kickstart(self,kickstart):
"""
Sets the kickstart. This must be a NFS, HTTP, or FTP URL.
Minor checking of the URL is performed here.
"""
if utils.find_kickstart(kickstart):
self.kickstart = kickstart
return True
raise CX(_("kickstart not found"))
def set_virt_file_size(self,num):
"""
For Virt only.
Specifies the size of the virt image in gigabytes. koan
may contain some logic to ignore 'illogical' values of this size,
though there are no guarantees. 0 tells koan to just
let it pick a semi-reasonable size. When in doubt, specify the
size you want.
"""
# num is a non-negative integer (0 means default)
try:
inum = int(num)
if inum != float(num):
return CX(_("invalid virt file size"))
if inum >= 0:
self.virt_file_size = inum
return True
raise CX(_("invalid virt file size"))
except:
raise CX(_("invalid virt file size"))
def set_virt_ram(self,num):
"""
For Virt only.
Specifies the size of the Virt RAM in MB.
0 tells Koan to just choose a reasonable default.
"""
# num is a non-negative integer (0 means default)
try:
inum = int(num)
if inum != float(num):
return CX(_("invalid virt ram size"))
if inum >= 0:
self.virt_ram = inum
return True
return CX(_("invalid virt ram size"))
except:
return CX(_("invalid virt ram size"))
def get_parent(self):
"""
Return object next highest up the tree.
"""
if self.parent is None or self.parent == '':
result = self.config.distros().find(self.distro)
else:
result = self.config.profiles().find(self.parent)
return result
def is_valid(self):
"""
A profile only needs a name and a distro. Kickstart info,
as well as Virt info, are optional. (Though I would say provisioning
without a kickstart is *usually* not a good idea).
"""
if self.parent is None or self.parent == '':
# all values must be filled in if not inheriting from another profile
if self.name is None:
raise CX(_("no name specified"))
if self.distro is None:
raise CX(_("no distro specified"))
else:
# if inheriting, specifying distro is not allowed, and
# name is required, but there are no other rules.
if self.name is None:
raise CX(_("no name specified"))
if self.distro != "<<inherit>>":
raise CX(_("cannot override distro when inheriting a profile"))
return True
def to_datastruct(self):
"""
Return hash representation for the serializer
"""
return {
'name' : self.name,
'distro' : self.distro,
'kickstart' : self.kickstart,
'kernel_options' : self.kernel_options,
'virt_file_size' : self.virt_file_size,
'virt_ram' : self.virt_ram,
'ks_meta' : self.ks_meta,
'repos' : self.repos,
'parent' : self.parent
}
def printable(self):
"""
A human readable representaton
"""
buf = _("profile : %s\n") % self.name
buf = buf + _("distro : %s\n") % self.distro
buf = buf + _("kickstart : %s\n") % self.kickstart
buf = buf + _("kernel options : %s\n") % self.kernel_options
buf = buf + _("ks metadata : %s\n") % self.ks_meta
buf = buf + _("virt file size : %s\n") % self.virt_file_size
buf = buf + _("virt ram : %s\n") % self.virt_ram
buf = buf + _("repos : %s\n") % self.repos
return buf
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