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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
import cexceptions
class Profile(item.Item):
def __init__(self,config):
"""
Constructor. Requires a backreference to Config.
"""
self.config = config
self.settings = self.config.settings()
self.clear()
def clear(self):
"""
Reset this object.
"""
self.name = None
self.distro = None # a name, not a reference
self.kickstart = self.settings.default_kickstart
self.kernel_options = ''
self.ks_meta = ''
self.virt_name = 'virtguest'
self.virt_file_size = 5 # GB. 5 = Decent _minimum_ default for FC5.
self.virt_ram = 512 # MB. Install with 256 not likely to pass
self.virt_paravirt = True # hvm support is *NOT* in Koan (now)
def from_datastruct(self,seed_data):
"""
Load this object's properties based on seed_data
"""
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')
# virt specific
self.virt_name = self.load_item(seed_data,'virt_name')
self.virt_ram = self.load_item(seed_data,'virt_ram')
self.virt_file_size = self.load_item(seed_data,'virt_file_size')
self.virt_paravirt = self.load_item(seed_data,'virt_paravirt')
# support for older versions of the cobbler files (backwards compat)...
self.virt_name = self.load_item(seed_data,'xen_name')
if not self.virt_name or self.virt_name == '':
self.virt_name = self.name
self.virt_ram = self.load_item(seed_data,'xen_ram')
self.virt_file_size = self.load_item(seed_data,'xen_file_size')
self.virt_paravirt = self.load_item(seed_data,'xen_paravirt')
return self
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 cexceptions.CobblerException("no_distro")
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 cexceptions.CobblerException("no_kickstart")
def set_virt_name(self,str):
"""
For Virt only.
Specifies what virt install should use for --name.
virt install may do conflict resolution, so this is mostly
a hint... To keep the shell happy, the 'str' cannot
contain wildcards or slashes and may be subject to some other
untainting later.
"""
# no slashes or wildcards
for bad in [ '/', '*', '?' ]:
if str.find(bad) != -1:
raise cexceptions.CobblerException("exc_virt_name")
self.virt_name = str
return True
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 cexceptions.CobblerException("exc_virt_file")
if inum >= 0:
self.virt_file_size = inum
return True
return cexceptions.CobblerException("exc_virt_file")
except:
return cexceptions.CobblerException("exc_virt_file")
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 cexceptions.CobblerException("exc_virt_ram")
if inum >= 0:
self.virt_ram = inum
return True
return cexceptions.CobblerException("exc_virt_ram")
except:
return cexceptions.CobblerException("exc_virt_ram")
def set_virt_paravirt(self,truthiness):
"""
For Virt only.
Specifies whether the system is a paravirtualized system or not.
For ordinary computers, you want to pick 'true'. Method accepts string
'true'/'false' in all cases, or Python True/False.
"""
# truthiness needs to be True or False, or (lcased) string equivalents
# yes, we *do* want to explicitly test against True/False
# the string "foosball" is True, and that is not a valid argument for this function
try:
if (not truthiness or truthiness.lower() == 'false'):
self.virt_paravirt = False
elif (truthiness or truthiness.lower() == 'true'):
self.virt_paravirt = True
else:
return cexceptions.CobblerException("exc_virt_para")
except:
return cexceptions.CobblerException("exc_virt_para")
return True
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).
"""
for x in (self.name, self.distro):
if x is None:
return False
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_name' : self.virt_name,
'virt_file_size' : self.virt_file_size,
'virt_ram' : self.virt_ram,
'virt_paravirt' : self.virt_paravirt,
'ks_meta' : self.ks_meta
}
def printable(self,id):
"""
A human readable representaton
"""
buf = "profile %-4s : %s\n" % (id, 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 name : %s\n" % self.virt_name
buf = buf + "virt file size : %s\n" % self.virt_file_size
buf = buf + "virt ram : %s\n" % self.virt_ram
buf = buf + "virt paravirt : %s\n" % self.virt_paravirt
return buf
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