System Record Duplicates

[Christopher Johnston]

Should this be allowed?  Seems like this is not the appropriate behaviour
given I could have multiple interfaces on a host, no?
[root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0
--hostname=foo
[root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1
--hostname=foo
[root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2
--hostname=foo
[root@init2 dhcpd]# cobbler sync
[root@init2 dhcpd]#

[root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0
--hostname=foo --ip=1.2.3.4 --subnet=255.255.255.0
[root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1
--hostname=foo --ip=1.2.3.4 --subnet=255.255.255.0
[root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2
--hostname=foo --ip=1.2.3.4 --subnet=255.255.255.0
[root@init2 dhcpd]# cobbler sync

[root@init2 dhcpd]# cobbler system report --name=foo
system                : foo
profile               : Legacy-Image-v1.0
comment               :
created               : Wed Nov 26 05:13:46 2008
image                 :
kernel options        : {}
kernel options post   : {}
kickstart             : <<inherit>>
ks metadata           : {}
mgmt classes          : []
modified              : Wed Nov 26 05:18:03 2008
netboot enabled?      : True
owners                : ['admin']
server                : <<inherit>>
template files        : {}
virt cpus             : <<inherit>>
virt file size        : <<inherit>>
virt path             : <<inherit>>
virt ram              : <<inherit>>
virt type             : <<inherit>>
power type            : ipmitool
power address         :
power user            :
power password        :
power id              :
interface        : eth0
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :
interface        : eth1
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :
interface        : eth2
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :


[root@init2 dhcpd]# grep duplicate /etc/cobbler/settings
# if 1, cobbler will allow insertions of system records that duplicate
allow_duplicate_hostnames: 0
# if 1, cobbler will allow insertions of system records that duplicate
allow_duplicate_ips: 0
# if 1, cobbler will allow insertions of system records that duplicate
allow_duplicate_macs: 0

Also a copy of a system record seems to be allowed, but not forcing me to
change any of the unique data in the record such as ip, hostname or mac
address.  See below.

system                : foo
profile               : Legacy-Image-v1.0
comment               :
created               : Wed Nov 26 05:13:46 2008
image                 :
kernel options        : {}
kernel options post   : {}
kickstart             : <<inherit>>
ks metadata           : {}
mgmt classes          : []
modified              : Wed Nov 26 05:18:03 2008
netboot enabled?      : True
owners                : ['admin']
server                : <<inherit>>
template files        : {}
virt cpus             : <<inherit>>
virt file size        : <<inherit>>
virt path             : <<inherit>>
virt ram              : <<inherit>>
virt type             : <<inherit>>
power type            : ipmitool
power address         :
power user            :
power password        :
power id              :
interface        : eth0
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :
interface        : eth1
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :
interface        : eth2
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :

system                : foo1
profile               : Legacy-Image-v1.0
comment               :
created               : Wed Nov 26 05:13:46 2008
image                 :
kernel options        : {}
kernel options post   : {}
kickstart             : <<inherit>>
ks metadata           : {}
mgmt classes          : []
modified              : Wed Nov 26 05:22:00 2008
netboot enabled?      : True
owners                : ['admin']
server                : <<inherit>>
template files        : {}
virt cpus             : <<inherit>>
virt file size        : <<inherit>>
virt path             : <<inherit>>
virt ram              : <<inherit>>
virt type             : <<inherit>>
power type            : ipmitool
power address         :
power user            :
power password        :
power id              :
interface        : eth0
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :
interface        : eth1
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :
interface        : eth2
  bonding        :
  bonding_master :
  bonding_opts   :
  dhcp tag       :
  gateway        :
  hostname       : foo
  ip address     : 1.2.3.4
  is static?     : False
  mac address    : 00:00:00:12:34:56
  subnet         : 255.255.255.0
  virt bridge    :

[Michael DeHaan]

Christopher Johnston wrote:
>  Should this be allowed?  Seems like this is not the appropriate 
>  behaviour given I could have multiple interfaces on a host, no? 
Duplicate hostname prevention is a feature in 1.2.X Cobbler, it is 
disabled/enabled at the top of your settings file.
I believe multiple hostnames on the same system are exempt from those 
restrictions.

What version of cobbler are you running?  (rpm -q cobbler) ? 

You mention a copy seems to be allowed.   Yes, it is.   This is one of 
those things that is pretty much required to make the copy easy to use, 
since it's hard to copy everything and supply correct arguments on the 
command line.    Enforcing the check at the copy time is one of the 
limitations of the duplicate hostname supression feature.  It's there as 
a safeguard, but it's not flawless.   A good tactic is to name your 
systems after your hostname parameters and make sure they match.   (You 
could probably even write some clever cobbler triggers to do more checks 
if you wanted)

Also, I should point out in 1.3, the hostname field per interface has 
been renamed to "--dns-name" and there is a global --hostname
that will set the /etc/sysconfig/network hostname.    Configurations 
will be migrated automatically so this is not something users will
need to worry about.

--Michael
>  [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0 
>  --hostname=foo
>  [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1 
>  --hostname=foo
>  [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2 
>  --hostname=foo
>  [root@init2 dhcpd]# cobbler sync
>  [root@init2 dhcpd]#
>
>  [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0 
>  --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0 
>  <http://255.255.255.0> 
>  [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1 
>  --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0 
>  <http://255.255.255.0> 
>  [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2 
>  --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0 
>  <http://255.255.255.0> 
>  [root@init2 dhcpd]# cobbler sync
>
>  [root@init2 dhcpd]# cobbler system report --name=foo
>  system                : foo
>  profile               : Legacy-Image-v1.0
>  comment               : 
>  created               : Wed Nov 26 05:13:46 2008
>  image                 : 
>  kernel options        : {}
>  kernel options post   : {}
>  kickstart             : <<inherit>>
>  ks metadata           : {}
>  mgmt classes          : []
>  modified              : Wed Nov 26 05:18:03 2008
>  netboot enabled?      : True
>  owners                : ['admin']
>  server                : <<inherit>>
>  template files        : {}
>  virt cpus             : <<inherit>>
>  virt file size        : <<inherit>>
>  virt path             : <<inherit>>
>  virt ram              : <<inherit>>
>  virt type             : <<inherit>>
>  power type            : ipmitool
>  power address         : 
>  power user            : 
>  power password        : 
>  power id              : 
>  interface        : eth0
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>  interface        : eth1
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>  interface        : eth2
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>
>
>  [root@init2 dhcpd]# grep duplicate /etc/cobbler/settings
>  # if 1, cobbler will allow insertions of system records that duplicate
>  allow_duplicate_hostnames: 0
>  # if 1, cobbler will allow insertions of system records that duplicate
>  allow_duplicate_ips: 0
>  # if 1, cobbler will allow insertions of system records that duplicate
>  allow_duplicate_macs: 0
>
>  Also a copy of a system record seems to be allowed, but not forcing me 
>  to change any of the unique data in the record such as ip, hostname or 
>  mac address.  See below.
>
>  system                : foo
>  profile               : Legacy-Image-v1.0
>  comment               : 
>  created               : Wed Nov 26 05:13:46 2008
>  image                 : 
>  kernel options        : {}
>  kernel options post   : {}
>  kickstart             : <<inherit>>
>  ks metadata           : {}
>  mgmt classes          : []
>  modified              : Wed Nov 26 05:18:03 2008
>  netboot enabled?      : True
>  owners                : ['admin']
>  server                : <<inherit>>
>  template files        : {}
>  virt cpus             : <<inherit>>
>  virt file size        : <<inherit>>
>  virt path             : <<inherit>>
>  virt ram              : <<inherit>>
>  virt type             : <<inherit>>
>  power type            : ipmitool
>  power address         : 
>  power user            : 
>  power password        : 
>  power id              : 
>  interface        : eth0
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>  interface        : eth1
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>  interface        : eth2
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>
>  system                : foo1
>  profile               : Legacy-Image-v1.0
>  comment               : 
>  created               : Wed Nov 26 05:13:46 2008
>  image                 : 
>  kernel options        : {}
>  kernel options post   : {}
>  kickstart             : <<inherit>>
>  ks metadata           : {}
>  mgmt classes          : []
>  modified              : Wed Nov 26 05:22:00 2008
>  netboot enabled?      : True
>  owners                : ['admin']
>  server                : <<inherit>>
>  template files        : {}
>  virt cpus             : <<inherit>>
>  virt file size        : <<inherit>>
>  virt path             : <<inherit>>
>  virt ram              : <<inherit>>
>  virt type             : <<inherit>>
>  power type            : ipmitool
>  power address         : 
>  power user            : 
>  power password        : 
>  power id              : 
>  interface        : eth0
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>  interface        : eth1
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>  interface        : eth2
>    bonding        : 
>    bonding_master : 
>    bonding_opts   : 
>    dhcp tag       : 
>    gateway        : 
>    hostname       : foo
>    ip address     : 1.2.3.4 <http://1.2.3.4>
>    is static?     : False
>    mac address    : 00:00:00:12:34:56
>    subnet         : 255.255.255.0 <http://255.255.255.0>
>    virt bridge    : 
>
>
>  ------------------------------------------------------------------------
>
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://fedorahosted.org/mailman/listinfo/cobbler
>

[Christopher Johnston]

I am running the latest cobbler 1.3.1.  I have /etc/cobbler/settings setup
to not allow duplicate mac addresses and hostname.
[root@init2 etc]# grep allow_dupl /etc/cobbler/settings
allow_duplicate_hostnames: 0
allow_duplicate_ips: 0
allow_duplicate_macs: 0

If we are relying on cobbler to manage DHCP addresses this could be a bad
thing if you have duplicate entries (for ip mac, etc) within a single system
record.  Since I am currently using cobbler to stateless boot initrd/vmlinuz
to my systems in a large number of clusters I will rely heavily on cobbler
to maintain unique information for all my systems which includes their
network interfaces.  Using the copy feature is convenient if we want to
mimic one system record to another, but sounds like its more suited for
using it to copy a system record as a template (minimal information in the
record thats static, ie kopts, profile, etc).  I noticed if I insert
duplicate entries into a system record it ends up overwriting other valid
entries on my dhcp server.

Could something like this be a configuration option that does stricter
checking, ie you do a copy of one system record to another and --mac --ip
--subnet --hostname (dns-name) is considered a mandatory field to be
entered?  Might even be something that gets checked when you run cobbler
sync.  Am I missing something here?

On Wed, Nov 26, 2008 at 5:11 AM, Michael DeHaan <mdehaan(a)redhat.com&gt; wrote:

>  Christopher Johnston wrote:
>  > Should this be allowed?  Seems like this is not the appropriate
>  > behaviour given I could have multiple interfaces on a host, no?
>
>  Duplicate hostname prevention is a feature in 1.2.X Cobbler, it is
>  disabled/enabled at the top of your settings file.
>  I believe multiple hostnames on the same system are exempt from those
>  restrictions.
>
>  What version of cobbler are you running?  (rpm -q cobbler) ?
>
>  You mention a copy seems to be allowed.   Yes, it is.   This is one of
>  those things that is pretty much required to make the copy easy to use,
>  since it's hard to copy everything and supply correct arguments on the
>  command line.    Enforcing the check at the copy time is one of the
>  limitations of the duplicate hostname supression feature.  It's there as
>  a safeguard, but it's not flawless.   A good tactic is to name your
>  systems after your hostname parameters and make sure they match.   (You
>  could probably even write some clever cobbler triggers to do more checks
>  if you wanted)
>
>  Also, I should point out in 1.3, the hostname field per interface has
>  been renamed to "--dns-name" and there is a global --hostname
>  that will set the /etc/sysconfig/network hostname.    Configurations
>  will be migrated automatically so this is not something users will
>  need to worry about.
>
>  --Michael
>  >
>  > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0
>  > --hostname=foo
>  > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1
>  > --hostname=foo
>  > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2
>  > --hostname=foo
>  > [root@init2 dhcpd]# cobbler sync
>  > [root@init2 dhcpd]#
>  >
>  > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0
>  > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0
>  > <http://255.255.255.0>
>  > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1
>  > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0
>  > <http://255.255.255.0>
>  > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2
>  > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0
>  > <http://255.255.255.0>
>  > [root@init2 dhcpd]# cobbler sync
>  >
>  > [root@init2 dhcpd]# cobbler system report --name=foo
>  > system                : foo
>  > profile               : Legacy-Image-v1.0
>  > comment               :
>  > created               : Wed Nov 26 05:13:46 2008
>  > image                 :
>  > kernel options        : {}
>  > kernel options post   : {}
>  > kickstart             : <<inherit>>
>  > ks metadata           : {}
>  > mgmt classes          : []
>  > modified              : Wed Nov 26 05:18:03 2008
>  > netboot enabled?      : True
>  > owners                : ['admin']
>  > server                : <<inherit>>
>  > template files        : {}
>  > virt cpus             : <<inherit>>
>  > virt file size        : <<inherit>>
>  > virt path             : <<inherit>>
>  > virt ram              : <<inherit>>
>  > virt type             : <<inherit>>
>  > power type            : ipmitool
>  > power address         :
>  > power user            :
>  > power password        :
>  > power id              :
>  > interface        : eth0
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  > interface        : eth1
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  > interface        : eth2
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  >
>  >
>  > [root@init2 dhcpd]# grep duplicate /etc/cobbler/settings
>  > # if 1, cobbler will allow insertions of system records that duplicate
>  > allow_duplicate_hostnames: 0
>  > # if 1, cobbler will allow insertions of system records that duplicate
>  > allow_duplicate_ips: 0
>  > # if 1, cobbler will allow insertions of system records that duplicate
>  > allow_duplicate_macs: 0
>  >
>  > Also a copy of a system record seems to be allowed, but not forcing me
>  > to change any of the unique data in the record such as ip, hostname or
>  > mac address.  See below.
>  >
>  > system                : foo
>  > profile               : Legacy-Image-v1.0
>  > comment               :
>  > created               : Wed Nov 26 05:13:46 2008
>  > image                 :
>  > kernel options        : {}
>  > kernel options post   : {}
>  > kickstart             : <<inherit>>
>  > ks metadata           : {}
>  > mgmt classes          : []
>  > modified              : Wed Nov 26 05:18:03 2008
>  > netboot enabled?      : True
>  > owners                : ['admin']
>  > server                : <<inherit>>
>  > template files        : {}
>  > virt cpus             : <<inherit>>
>  > virt file size        : <<inherit>>
>  > virt path             : <<inherit>>
>  > virt ram              : <<inherit>>
>  > virt type             : <<inherit>>
>  > power type            : ipmitool
>  > power address         :
>  > power user            :
>  > power password        :
>  > power id              :
>  > interface        : eth0
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  > interface        : eth1
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  > interface        : eth2
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  >
>  > system                : foo1
>  > profile               : Legacy-Image-v1.0
>  > comment               :
>  > created               : Wed Nov 26 05:13:46 2008
>  > image                 :
>  > kernel options        : {}
>  > kernel options post   : {}
>  > kickstart             : <<inherit>>
>  > ks metadata           : {}
>  > mgmt classes          : []
>  > modified              : Wed Nov 26 05:22:00 2008
>  > netboot enabled?      : True
>  > owners                : ['admin']
>  > server                : <<inherit>>
>  > template files        : {}
>  > virt cpus             : <<inherit>>
>  > virt file size        : <<inherit>>
>  > virt path             : <<inherit>>
>  > virt ram              : <<inherit>>
>  > virt type             : <<inherit>>
>  > power type            : ipmitool
>  > power address         :
>  > power user            :
>  > power password        :
>  > power id              :
>  > interface        : eth0
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  > interface        : eth1
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  > interface        : eth2
>  >   bonding        :
>  >   bonding_master :
>  >   bonding_opts   :
>  >   dhcp tag       :
>  >   gateway        :
>  >   hostname       : foo
>  >   ip address     : 1.2.3.4 <http://1.2.3.4>
>  >   is static?     : False
>  >   mac address    : 00:00:00:12:34:56
>  >   subnet         : 255.255.255.0 <http://255.255.255.0>
>  >   virt bridge    :
>  >
>  >
>  > ------------------------------------------------------------------------
>  >
>  > _______________________________________________
>  > cobbler mailing list
>  > cobbler(a)lists.fedorahosted.org
>  > https://fedorahosted.org/mailman/listinfo/cobbler
>  >
>
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://fedorahosted.org/mailman/listinfo/cobbler
>

[Christopher Johnston]

NOTE: I do notice that I cant do this against another system record because
of the configuration in my settings file, but duplicates in the same system
record does not seem right to me.

[root@init2 etc]# cobbler system edit --name=template-hp --interface=eth0
--subnet=255.255.255.0
Can't save system template-hp.  The hostname (foo) is already used by system
foo (eth1)


On Wed, Nov 26, 2008 at 2:17 PM, Christopher Johnston <
cjohnstonwork(a)gmail.com&gt; wrote:

>  I am running the latest cobbler 1.3.1.  I have /etc/cobbler/settings
> setup
>  to not allow duplicate mac addresses and hostname.
>  [root@init2 etc]# grep allow_dupl /etc/cobbler/settings
>  allow_duplicate_hostnames: 0
>  allow_duplicate_ips: 0
>  allow_duplicate_macs: 0
>
>  If we are relying on cobbler to manage DHCP addresses this could be a bad
>  thing if you have duplicate entries (for ip mac, etc) within a single system
>  record.  Since I am currently using cobbler to stateless boot initrd/vmlinuz
>  to my systems in a large number of clusters I will rely heavily on cobbler
>  to maintain unique information for all my systems which includes their
>  network interfaces.  Using the copy feature is convenient if we want to
>  mimic one system record to another, but sounds like its more suited for
>  using it to copy a system record as a template (minimal information in the
>  record thats static, ie kopts, profile, etc).  I noticed if I insert
>  duplicate entries into a system record it ends up overwriting other valid
>  entries on my dhcp server.
>
>  Could something like this be a configuration option that does stricter
>  checking, ie you do a copy of one system record to another and --mac --ip
>  --subnet --hostname (dns-name) is considered a mandatory field to be
>  entered?  Might even be something that gets checked when you run cobbler
>  sync.  Am I missing something here?
>
>  On Wed, Nov 26, 2008 at 5:11 AM, Michael DeHaan <mdehaan(a)redhat.com&gt;wrote:
>
> > Christopher Johnston wrote:
> > > Should this be allowed?  Seems like this is not the appropriate
> > > behaviour given I could have multiple interfaces on a host, no?
> >
> > Duplicate hostname prevention is a feature in 1.2.X Cobbler, it is
> > disabled/enabled at the top of your settings file.
> > I believe multiple hostnames on the same system are exempt from those
> > restrictions.
> >
> > What version of cobbler are you running?  (rpm -q cobbler) ?
> >
> > You mention a copy seems to be allowed.   Yes, it is.   This is one of
> > those things that is pretty much required to make the copy easy to use,
> > since it's hard to copy everything and supply correct arguments on the
> > command line.    Enforcing the check at the copy time is one of the
> > limitations of the duplicate hostname supression feature.  It's there as
> > a safeguard, but it's not flawless.   A good tactic is to name your
> > systems after your hostname parameters and make sure they match.   (You
> > could probably even write some clever cobbler triggers to do more checks
> > if you wanted)
> >
> > Also, I should point out in 1.3, the hostname field per interface has
> > been renamed to "--dns-name" and there is a global --hostname
> > that will set the /etc/sysconfig/network hostname.    Configurations
> > will be migrated automatically so this is not something users will
> > need to worry about.
> >
> > --Michael
> > >
> > > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0
> > > --hostname=foo
> > > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1
> > > --hostname=foo
> > > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2
> > > --hostname=foo
> > > [root@init2 dhcpd]# cobbler sync
> > > [root@init2 dhcpd]#
> > >
> > > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0
> > > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0
> > > <http://255.255.255.0>
> > > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1
> > > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0
> > > <http://255.255.255.0>
> > > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2
> > > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> --subnet=255.255.255.0
> > > <http://255.255.255.0>
> > > [root@init2 dhcpd]# cobbler sync
> > >
> > > [root@init2 dhcpd]# cobbler system report --name=foo
> > > system                : foo
> > > profile               : Legacy-Image-v1.0
> > > comment               :
> > > created               : Wed Nov 26 05:13:46 2008
> > > image                 :
> > > kernel options        : {}
> > > kernel options post   : {}
> > > kickstart             : <<inherit>>
> > > ks metadata           : {}
> > > mgmt classes          : []
> > > modified              : Wed Nov 26 05:18:03 2008
> > > netboot enabled?      : True
> > > owners                : ['admin']
> > > server                : <<inherit>>
> > > template files        : {}
> > > virt cpus             : <<inherit>>
> > > virt file size        : <<inherit>>
> > > virt path             : <<inherit>>
> > > virt ram              : <<inherit>>
> > > virt type             : <<inherit>>
> > > power type            : ipmitool
> > > power address         :
> > > power user            :
> > > power password        :
> > > power id              :
> > > interface        : eth0
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > > interface        : eth1
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > > interface        : eth2
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > >
> > >
> > > [root@init2 dhcpd]# grep duplicate /etc/cobbler/settings
> > > # if 1, cobbler will allow insertions of system records that duplicate
> > > allow_duplicate_hostnames: 0
> > > # if 1, cobbler will allow insertions of system records that duplicate
> > > allow_duplicate_ips: 0
> > > # if 1, cobbler will allow insertions of system records that duplicate
> > > allow_duplicate_macs: 0
> > >
> > > Also a copy of a system record seems to be allowed, but not forcing me
> > > to change any of the unique data in the record such as ip, hostname or
> > > mac address.  See below.
> > >
> > > system                : foo
> > > profile               : Legacy-Image-v1.0
> > > comment               :
> > > created               : Wed Nov 26 05:13:46 2008
> > > image                 :
> > > kernel options        : {}
> > > kernel options post   : {}
> > > kickstart             : <<inherit>>
> > > ks metadata           : {}
> > > mgmt classes          : []
> > > modified              : Wed Nov 26 05:18:03 2008
> > > netboot enabled?      : True
> > > owners                : ['admin']
> > > server                : <<inherit>>
> > > template files        : {}
> > > virt cpus             : <<inherit>>
> > > virt file size        : <<inherit>>
> > > virt path             : <<inherit>>
> > > virt ram              : <<inherit>>
> > > virt type             : <<inherit>>
> > > power type            : ipmitool
> > > power address         :
> > > power user            :
> > > power password        :
> > > power id              :
> > > interface        : eth0
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > > interface        : eth1
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > > interface        : eth2
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > >
> > > system                : foo1
> > > profile               : Legacy-Image-v1.0
> > > comment               :
> > > created               : Wed Nov 26 05:13:46 2008
> > > image                 :
> > > kernel options        : {}
> > > kernel options post   : {}
> > > kickstart             : <<inherit>>
> > > ks metadata           : {}
> > > mgmt classes          : []
> > > modified              : Wed Nov 26 05:22:00 2008
> > > netboot enabled?      : True
> > > owners                : ['admin']
> > > server                : <<inherit>>
> > > template files        : {}
> > > virt cpus             : <<inherit>>
> > > virt file size        : <<inherit>>
> > > virt path             : <<inherit>>
> > > virt ram              : <<inherit>>
> > > virt type             : <<inherit>>
> > > power type            : ipmitool
> > > power address         :
> > > power user            :
> > > power password        :
> > > power id              :
> > > interface        : eth0
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > > interface        : eth1
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > > interface        : eth2
> > >   bonding        :
> > >   bonding_master :
> > >   bonding_opts   :
> > >   dhcp tag       :
> > >   gateway        :
> > >   hostname       : foo
> > >   ip address     : 1.2.3.4 <http://1.2.3.4>
> > >   is static?     : False
> > >   mac address    : 00:00:00:12:34:56
> > >   subnet         : 255.255.255.0 <http://255.255.255.0>
> > >   virt bridge    :
> > >
> > >
> > > ------------------------------------------------------------------------
> > >
> > > _______________________________________________
> > > cobbler mailing list
> > > cobbler(a)lists.fedorahosted.org
> > > https://fedorahosted.org/mailman/listinfo/cobbler
> > >
> >
> > _______________________________________________
> > cobbler mailing list
> > cobbler(a)lists.fedorahosted.org
> > https://fedorahosted.org/mailman/listinfo/cobbler
> >
>
>

[Michael DeHaan]

Christopher Johnston wrote:
>  I am running the latest cobbler 1.3.1. <http://1.3.1.>  I have
>
>  /etc/cobbler/settings setup to not allow duplicate mac addresses and 
>  hostname. 
For development versions, the latest version is best defined as a "when" 
not a number.  See the full output of "--version" if it's less than 5 
minutes old :)   This will also give me git information regarding any 
local modifications.

>  [root@init2 etc]# grep allow_dupl /etc/cobbler/settings
>  allow_duplicate_hostnames: 0
>  allow_duplicate_ips: 0
>  allow_duplicate_macs: 0
>  
Ok...

>  If we are relying on cobbler to manage DHCP addresses this could be a
>
>  bad thing if you have duplicate entries (for ip mac, etc) within a 
>  single system record.  Since I am currently using cobbler to stateless 
>  boot initrd/vmlinuz to my systems in a large number of clusters I will 
>  rely heavily on cobbler to maintain unique information for all my 
>  systems which includes their network interfaces.  Using the copy 
>  feature is convenient if we want to mimic one system record to 
>  another, but sounds like its more suited for using it to copy a system 
>  record as a template (minimal information in the record thats static, 
>  ie kopts, profile, etc).  I noticed if I insert duplicate entries into 
>  a system record it ends up overwriting other valid entries on my dhcp 
>  server.
>  
Not sure what you mean by "overwriting", you mean clobbering leases?  Yes.


>  Could something like this be a configuration option that does
> stricter 
>  checking, ie you do a copy of one system record to another and --mac 
>  --ip --subnet --hostname (dns-name) is considered a mandatory field to 
>  be entered?  Might even be something that gets checked when you run 
>  cobbler sync.  Am I missing something here?
>  
Sounds reasonable.  How about filing a bug in Trac about putting some 
more restrictions on the copy operation?

http://fedorahosted.org/cobbler

This will probably not make 1.4.X as it likely requires some extra 
handling in both the API and the web application.



>  On Wed, Nov 26, 2008 at 5:11 AM, Michael DeHaan
> <mdehaan(a)redhat.com 
>  <mailto:[e-mail]>> wrote:
>
>      Christopher Johnston wrote:
>      > Should this be allowed?  Seems like this is not the appropriate
>      > behaviour given I could have multiple interfaces on a host, no?
>
>      Duplicate hostname prevention is a feature in 1.2.X Cobbler, it is
>      disabled/enabled at the top of your settings file.
>      I believe multiple hostnames on the same system are exempt from those
>      restrictions.
>
>      What version of cobbler are you running?  (rpm -q cobbler) ?
>
>      You mention a copy seems to be allowed.   Yes, it is.   This is one of
>      those things that is pretty much required to make the copy easy to
>      use,
>      since it's hard to copy everything and supply correct arguments on the
>      command line.    Enforcing the check at the copy time is one of the
>      limitations of the duplicate hostname supression feature.  It's
>      there as
>      a safeguard, but it's not flawless.   A good tactic is to name your
>      systems after your hostname parameters and make sure they match.  
>      (You
>      could probably even write some clever cobbler triggers to do more
>      checks
>      if you wanted)
>
>      Also, I should point out in 1.3, the hostname field per interface has
>      been renamed to "--dns-name" and there is a global --hostname
>      that will set the /etc/sysconfig/network hostname.    Configurations
>      will be migrated automatically so this is not something users will
>      need to worry about.
>
>      --Michael
>      >
>      > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0
>      > --hostname=foo
>      > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1
>      > --hostname=foo
>      > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2
>      > --hostname=foo
>      > [root@init2 dhcpd]# cobbler sync
>      > [root@init2 dhcpd]#
>      >
>      > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth0
>      > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      --subnet=255.255.255.0 <http://255.255.255.0>
>      > <http://255.255.255.0>
>      > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth1
>      > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      --subnet=255.255.255.0 <http://255.255.255.0>
>      > <http://255.255.255.0>
>      > [root@init2 dhcpd]# cobbler system edit --name=foo --interface=eth2
>      > --hostname=foo --ip=1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      --subnet=255.255.255.0 <http://255.255.255.0>
>      > <http://255.255.255.0>
>      > [root@init2 dhcpd]# cobbler sync
>      >
>      > [root@init2 dhcpd]# cobbler system report --name=foo
>      > system                : foo
>      > profile               : Legacy-Image-v1.0
>      > comment               :
>      > created               : Wed Nov 26 05:13:46 2008
>      > image                 :
>      > kernel options        : {}
>      > kernel options post   : {}
>      > kickstart             : <<inherit>>
>      > ks metadata           : {}
>      > mgmt classes          : []
>      > modified              : Wed Nov 26 05:18:03 2008
>      > netboot enabled?      : True
>      > owners                : ['admin']
>      > server                : <<inherit>>
>      > template files        : {}
>      > virt cpus             : <<inherit>>
>      > virt file size        : <<inherit>>
>      > virt path             : <<inherit>>
>      > virt ram              : <<inherit>>
>      > virt type             : <<inherit>>
>      > power type            : ipmitool
>      > power address         :
>      > power user            :
>      > power password        :
>      > power id              :
>      > interface        : eth0
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      > interface        : eth1
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      > interface        : eth2
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      >
>      >
>      > [root@init2 dhcpd]# grep duplicate /etc/cobbler/settings
>      > # if 1, cobbler will allow insertions of system records that
>      duplicate
>      > allow_duplicate_hostnames: 0
>      > # if 1, cobbler will allow insertions of system records that
>      duplicate
>      > allow_duplicate_ips: 0
>      > # if 1, cobbler will allow insertions of system records that
>      duplicate
>      > allow_duplicate_macs: 0
>      >
>      > Also a copy of a system record seems to be allowed, but not
>      forcing me
>      > to change any of the unique data in the record such as ip,
>      hostname or
>      > mac address.  See below.
>      >
>      > system                : foo
>      > profile               : Legacy-Image-v1.0
>      > comment               :
>      > created               : Wed Nov 26 05:13:46 2008
>      > image                 :
>      > kernel options        : {}
>      > kernel options post   : {}
>      > kickstart             : <<inherit>>
>      > ks metadata           : {}
>      > mgmt classes          : []
>      > modified              : Wed Nov 26 05:18:03 2008
>      > netboot enabled?      : True
>      > owners                : ['admin']
>      > server                : <<inherit>>
>      > template files        : {}
>      > virt cpus             : <<inherit>>
>      > virt file size        : <<inherit>>
>      > virt path             : <<inherit>>
>      > virt ram              : <<inherit>>
>      > virt type             : <<inherit>>
>      > power type            : ipmitool
>      > power address         :
>      > power user            :
>      > power password        :
>      > power id              :
>      > interface        : eth0
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      > interface        : eth1
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      > interface        : eth2
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      >
>      > system                : foo1
>      > profile               : Legacy-Image-v1.0
>      > comment               :
>      > created               : Wed Nov 26 05:13:46 2008
>      > image                 :
>      > kernel options        : {}
>      > kernel options post   : {}
>      > kickstart             : <<inherit>>
>      > ks metadata           : {}
>      > mgmt classes          : []
>      > modified              : Wed Nov 26 05:22:00 2008
>      > netboot enabled?      : True
>      > owners                : ['admin']
>      > server                : <<inherit>>
>      > template files        : {}
>      > virt cpus             : <<inherit>>
>      > virt file size        : <<inherit>>
>      > virt path             : <<inherit>>
>      > virt ram              : <<inherit>>
>      > virt type             : <<inherit>>
>      > power type            : ipmitool
>      > power address         :
>      > power user            :
>      > power password        :
>      > power id              :
>      > interface        : eth0
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      > interface        : eth1
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      > interface        : eth2
>      >   bonding        :
>      >   bonding_master :
>      >   bonding_opts   :
>      >   dhcp tag       :
>      >   gateway        :
>      >   hostname       : foo
>      >   ip address     : 1.2.3.4 <http://1.2.3.4> <http://1.2.3.4>
>      >   is static?     : False
>      >   mac address    : 00:00:00:12:34:56
>      >   subnet         : 255.255.255.0 <http://255.255.255.0>
>      <http://255.255.255.0>
>      >   virt bridge    :
>      >
>      >
>      >
>      ------------------------------------------------------------------------
>      >
>      > _______________________________________________
>      > cobbler mailing list
>      > cobbler(a)lists.fedorahosted.org
>      <mailto:[e-mail]>
>      > https://fedorahosted.org/mailman/listinfo/cobbler
>      >
>
>      _______________________________________________
>      cobbler mailing list
>      cobbler(a)lists.fedorahosted.org <mailto:[e-mail]>
>      https://fedorahosted.org/mailman/listinfo/cobbler
>
>
>  ------------------------------------------------------------------------
>
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://fedorahosted.org/mailman/listinfo/cobbler
>