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"""
A Cobbler Image. Tracks a virtual or physical image, as opposed to a answer
file (kickstart) led installation.
Copyright 2006-2008, Red Hat, Inc
Michael DeHaan <mdehaan@redhat.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
"""
import utils
import item
from cexceptions import *
from utils import _
class Image(item.Item):
TYPE_NAME = _("image")
COLLECTION_TYPE = "image"
def make_clone(self):
ds = self.to_datastruct()
cloned = Image(self.config)
cloned.from_datastruct(ds)
return cloned
def clear(self,is_subobject=False):
"""
Reset this object.
"""
self.name = ''
self.arch = 'i386'
self.file = ''
self.xml_file = ''
self.parent = ''
self.depth = 0
self.virt_ram = self.settings.default_virt_ram
self.virt_file_size = self.settings.default_virt_file_size
self.virt_path = ''
self.virt_type = self.settings.default_virt_type
self.virt_cpus = 1
self.virt_bridge = self.settings.default_virt_bridge
self.owners = self.settings.default_ownership
self.image_type = "iso" # direct, iso, memdisk, virt-clone
self.breed = 'redhat'
self.os_version = ''
def from_datastruct(self,seed_data):
"""
Load this object's properties based on seed_data
"""
self.name = self.load_item(seed_data,'name','')
self.parent = self.load_item(seed_data,'parent','')
self.file = self.load_item(seed_data,'file','')
self.xml_file = self.load_item(seed_data,'xml_file','')
self.depth = self.load_item(seed_data,'depth',0)
self.owners = self.load_item(seed_data,'owners',self.settings.default_ownership)
self.virt_ram = self.load_item(seed_data, 'virt_ram', self.settings.default_virt_ram)
self.virt_file_size = self.load_item(seed_data, 'virt_file_size', self.settings.default_virt_file_size)
self.virt_path = self.load_item(seed_data, 'virt_path')
self.virt_type = self.load_item(seed_data, 'virt_type', self.settings.default_virt_type)
self.virt_cpus = self.load_item(seed_data, 'virt_cpus')
self.virt_bridge = self.load_item(seed_data, 'virt_bridge', self.settings.default_virt_bridge)
self.arch = self.load_item(seed_data,'arch','i386')
self.xml_file = self.load_item(seed_data, 'xml_file', '')
self.image_type = self.load_item(seed_data, 'image_type', 'iso')
self.breed = self.load_item(seed_data, 'breed', 'redhat')
self.os_version = self.load_item(seed_data, 'os_version', '')
self.set_owners(self.owners)
self.set_arch(self.arch)
return self
def set_arch(self,arch):
"""
The field is mainly relevant to PXE provisioning.
see comments for set_arch in item_distro.py, this works the same.
"""
return utils.set_arch(self,arch)
def set_file(self,filename):
"""
Stores the image location. This should be accessible on all nodes
that need to access it. Format: either /mnt/commonpath/foo.iso or
nfs://host/path/foo.iso
"""
# FIXME: this should accept NFS paths or filesystem paths
self.file = filename
return True
def set_os_version(self,os_version):
return utils.set_os_version(self,os_version)
def set_breed(self,breed):
return utils.set_breed(self,breed)
def set_image_type(self,image_type):
"""
Indicates what type of image this is.
direct = something like "memdisk", physical only
iso = a bootable ISO that pxe's or can be used for virt installs, virtual only
virt-clone = a cloned virtual disk (FIXME: not yet supported), virtual only
memdisk = hdd image (physical only)
"""
if not image_type in [ "direct", "iso", "memdisk", "virt-clone" ]:
raise CX(_("image type must be 'direct', 'iso', or 'virt-clone'"))
self.image_type = image_type
return True
def set_xml_file(self,filename):
"""
Stores an xmlfile for virt-image. This should be accessible
on all nodes that need to access it also. See set_file.
FIXME: not yet supported, just a stub.
"""
self.xml_file = filename
return True
def set_virt_cpus(self,num):
return utils.set_virt_cpus(self,num)
def set_virt_file_size(self,num):
return utils.set_virt_file_size(self,num)
def set_virt_ram(self,num):
return utils.set_virt_ram(self,num)
def set_virt_type(self,vtype):
return utils.set_virt_type(self,vtype)
def set_virt_bridge(self,vbridge):
self.virt_bridge = vbridge
return True
def set_virt_path(self,path):
return utils.set_virt_path(self,path)
def get_parent(self):
"""
Return object next highest up the tree.
"""
return None # no parent
def is_valid(self):
if self.file is None or self.file == '':
raise CX(_("image has no file specified"))
if self.name is None or self.name == '':
raise CX(_("image has no name specified"))
return True
# FIXME: add virt parameters here as needed
def to_datastruct(self):
"""
Return hash representation for the serializer
"""
return {
'name' : self.name,
'image_type' : self.image_type,
'file' : self.file,
'xml_file' : self.xml_file,
'depth' : 0,
'parent' : '',
'owners' : self.owners,
'virt_ram' : self.virt_ram,
'virt_path' : self.virt_path,
'virt_cpus' : self.virt_cpus,
'virt_bridge' : self.virt_bridge,
'virt_file_size' : self.virt_file_size,
'xml_file' : self.xml_file,
'breed' : self.breed,
'os_version' : self.os_version
}
def printable(self):
"""
A human readable representaton
"""
buf = _("image : %s\n") % self.name
buf = buf + _("image type : %s\n") % self.image_type
buf = buf + _("arch : %s\n") % self.arch
buf = buf + _("breed : %s\n") % self.breed
buf = buf + _("file : %s\n") % self.file
buf = buf + _("xml file : %s\n") % self.xml_file
buf = buf + _("os version : %s\n") % self.os_version
buf = buf + _("owners : %s\n") % self.owners
buf = buf + _("virt bridge : %s\n") % self.virt_bridge
buf = buf + _("virt cpus : %s\n") % self.virt_cpus
buf = buf + _("virt file size : %s\n") % self.virt_file_size
buf = buf + _("virt path : %s\n") % self.virt_path
buf = buf + _("virt ram : %s\n") % self.virt_ram
buf = buf + _("virt type : %s\n") % self.virt_type
return buf
def remote_methods(self):
return {
'name' : self.set_name,
'image-type' : self.set_image_type,
'breed' : self.set_breed,
'os-version' : self.set_os_version,
'arch' : self.set_arch,
'file' : self.set_file,
'xml-file' : self.set_xml_file,
'owners' : self.set_owners,
'virt-cpus' : self.set_virt_cpus,
'virt-file-size' : self.set_virt_file_size,
'virt-path' : self.set_virt_path,
'virt-ram' : self.set_virt_ram,
'virt-type' : self.set_virt_type
}
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