cobbler sync - Generating dhcpd.conf fail

[Nandakumar Nachimuthu]

Hi

I am new to cobbler. 

I am trying to resolve a cobbler issue, request your help/guidance on the same. we have
spacewalk with cobbler. when I add a new host and do a cobbler sync, i am getting the
below error and TASK FAILED.

rendering DHCP files
generating /etc/dhcp/dhcpd.conf
Exception occured: <class 'cexceptions.CX'>
Exception value: 'Error templating file, check cobbler.log for more details'
when I cross check the cobbler.log, these entries were recorded...

Mon Apr 25 14:44:45 2016 - WARNING | errors were encountered rendering the       template
Mon Apr 25 14:44:45 2016 - WARNING |
[{'code': u'VFFSL(SL,"net0",True)/mac',
'exc_val': NotFound("cannot find 'net0'",),
'lineCol': (2, 11),
'rawCode': u'${net0/mac}',
'time': 'Mon Apr 25 14:44:45 2016'}]

[Locane]

What does your template look like?
On Apr 26, 2016 4:48 AM, <nandakumar.n10(a)gmail.com&gt; wrote:

>  Hi
>
>  I am new to cobbler.
>
>  I am trying to resolve a cobbler issue, request your help/guidance on the
>  same. we have spacewalk with cobbler. when I add a new host and do a
>  cobbler sync, i am getting the below error and TASK FAILED.
>
>  rendering DHCP files
>  generating /etc/dhcp/dhcpd.conf
>  Exception occured: <class 'cexceptions.CX'>
>  Exception value: 'Error templating file, check cobbler.log for more
>  details'
>  when I cross check the cobbler.log, these entries were recorded...
>
>  Mon Apr 25 14:44:45 2016 - WARNING | errors were encountered rendering
>  the       template
>  Mon Apr 25 14:44:45 2016 - WARNING |
>  [{'code': u'VFFSL(SL,"net0",True)/mac',
>  'exc_val': NotFound("cannot find 'net0'",),
>  'lineCol': (2, 11),
>  'rawCode': u'${net0/mac}',
>  'time': 'Mon Apr 25 14:44:45 2016'}]
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://lists.fedorahosted.org/admin/lists/[e-mail]
>

[Nandakumar Nachimuthu]

Here it goes,

# ******************************************************************

ddns-update-style interim;

allow booting;
allow bootp;

ignore client-updates;
set vendorclass = option vendor-class-identifier;

# CHE subnets
subnet 10.220.5.0 netmask 255.255.255.0 {

        option broadcast-address        10.220.5.255;
        option routers                  10.220.5.1;
        option subnet-mask              255.255.255.0;

        option nis-domain               "corp.atmel.com";
        option domain-name              "corp.atmel.com";
        option domain-name-servers      10.220.5.24, 10.150.66.20;
        option ntp-servers              10.220.5.24, 10.150.66.20;

        default-lease-time              21600;
        max-lease-time                  43200;

        next-server                     $next_server;
        filename                        "/pxelinux.0";

}

#for dhcp_tag in $dhcp_tags.keys():
    ## group could be subnet if your dhcp tags line up with your subnets
    ## or really any valid dhcpd.conf construct ... if you only use the
    ## default dhcp tag in cobbler, the group block can be deleted for a
    ## flat configuration
# group for Cobbler DHCP tag: $dhcp_tag
group {
        #for mac in $dhcp_tags[$dhcp_tag].keys():
            #set iface = $dhcp_tags[$dhcp_tag][$mac]
            #set site = $iface.hostname[0:3]
            #set spwhost = {}
            #set spwhost['CHE'] = 'chespwprx01.corp.atmel.com'
    host $iface.hostname {
        hardware ethernet $mac;
        #if $iface.ip_address:
        fixed-address $iface.ip_address;
        #end if
        #if $iface.hostname:
        option host-name "$iface.hostname";
        #end if
        #if $iface.netmask:
        option subnet-mask $iface.netmask;
        #end if
        #if $iface.gateway:
        option routers $iface.gateway;
        #end if
        #if $iface.enable_gpxe:
        if exists user-class and option user-class = "gPXE" {
                filename "http://
$cobbler_server/cblr/svc/op/gpxe/system/$iface.owner";
        } else if exists user-class and option user-class = "iPXE" {
                filename "http://
$cobbler_server/cblr/svc/op/gpxe/system/$iface.owner";
        } else {
                filename "undionly.kpxe";
        }
        #else
        filename "$iface.filename";
        #end if
        ## Cobbler defaults to $next_server, but some users
        ## may like to use $iface.system.server for proxied setups
        next-server $spwhost[$site.upper()];
        ## next-server $iface.next_server;
    }
        #end for
}
#end for



Thanks
Nandakumar

On Tue, Apr 26, 2016 at 9:24 PM, Locane <locane(a)gmail.com&gt; wrote:

>  What does your template look like?
>  On Apr 26, 2016 4:48 AM, <nandakumar.n10(a)gmail.com&gt; wrote:
>
> > Hi
> >
> > I am new to cobbler.
> >
> > I am trying to resolve a cobbler issue, request your help/guidance on the
> > same. we have spacewalk with cobbler. when I add a new host and do a
> > cobbler sync, i am getting the below error and TASK FAILED.
> >
> > rendering DHCP files
> > generating /etc/dhcp/dhcpd.conf
> > Exception occured: <class 'cexceptions.CX'>
> > Exception value: 'Error templating file, check cobbler.log for more
> > details'
> > when I cross check the cobbler.log, these entries were recorded...
> >
> > Mon Apr 25 14:44:45 2016 - WARNING | errors were encountered rendering
> > the       template
> > Mon Apr 25 14:44:45 2016 - WARNING |
> > [{'code': u'VFFSL(SL,"net0",True)/mac',
> > 'exc_val': NotFound("cannot find 'net0'",),
> > 'lineCol': (2, 11),
> > 'rawCode': u'${net0/mac}',
> > 'time': 'Mon Apr 25 14:44:45 2016'}]
> > _______________________________________________
> > cobbler mailing list
> > cobbler(a)lists.fedorahosted.org
> > https://lists.fedorahosted.org/admin/lists/[e-mail]
> >
>
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://lists.fedorahosted.org/admin/lists/[e-mail]
>
>

[Locane]

Someone else might be able to help more, I'm just kinda stabbing in the
dark here.  Do you have "net0" defined somewhere in your
/etc/cobbler/settings ?
On Apr 26, 2016 9:11 AM, "Nandakumar Nachimuthu"
<nandakumar.n10(a)gmail.com&gt;
wrote:

>  Here it goes,
>
>  # ******************************************************************
>
>  ddns-update-style interim;
>
>  allow booting;
>  allow bootp;
>
>  ignore client-updates;
>  set vendorclass = option vendor-class-identifier;
>
>  # CHE subnets
>  subnet 10.220.5.0 netmask 255.255.255.0 {
>
>          option broadcast-address        10.220.5.255;
>          option routers                  10.220.5.1;
>          option subnet-mask              255.255.255.0;
>
>          option nis-domain               "corp.atmel.com";
>          option domain-name              "corp.atmel.com";
>          option domain-name-servers      10.220.5.24, 10.150.66.20;
>          option ntp-servers              10.220.5.24, 10.150.66.20;
>
>          default-lease-time              21600;
>          max-lease-time                  43200;
>
>          next-server                     $next_server;
>          filename                        "/pxelinux.0";
>
>  }
>
>  #for dhcp_tag in $dhcp_tags.keys():
>      ## group could be subnet if your dhcp tags line up with your subnets
>      ## or really any valid dhcpd.conf construct ... if you only use the
>      ## default dhcp tag in cobbler, the group block can be deleted for a
>      ## flat configuration
>  # group for Cobbler DHCP tag: $dhcp_tag
>  group {
>          #for mac in $dhcp_tags[$dhcp_tag].keys():
>              #set iface = $dhcp_tags[$dhcp_tag][$mac]
>              #set site = $iface.hostname[0:3]
>              #set spwhost = {}
>              #set spwhost['CHE'] = 'chespwprx01.corp.atmel.com'
>      host $iface.hostname {
>          hardware ethernet $mac;
>          #if $iface.ip_address:
>          fixed-address $iface.ip_address;
>          #end if
>          #if $iface.hostname:
>          option host-name "$iface.hostname";
>          #end if
>          #if $iface.netmask:
>          option subnet-mask $iface.netmask;
>          #end if
>          #if $iface.gateway:
>          option routers $iface.gateway;
>          #end if
>          #if $iface.enable_gpxe:
>          if exists user-class and option user-class = "gPXE" {
>                  filename "http://
>  $cobbler_server/cblr/svc/op/gpxe/system/$iface.owner";
>          } else if exists user-class and option user-class = "iPXE" {
>                  filename "http://
>  $cobbler_server/cblr/svc/op/gpxe/system/$iface.owner";
>          } else {
>                  filename "undionly.kpxe";
>          }
>          #else
>          filename "$iface.filename";
>          #end if
>          ## Cobbler defaults to $next_server, but some users
>          ## may like to use $iface.system.server for proxied setups
>          next-server $spwhost[$site.upper()];
>          ## next-server $iface.next_server;
>      }
>          #end for
>  }
>  #end for
>
>
>
>  Thanks
>  Nandakumar
>
>  On Tue, Apr 26, 2016 at 9:24 PM, Locane <locane(a)gmail.com&gt; wrote:
>
> > What does your template look like?
> > On Apr 26, 2016 4:48 AM, <nandakumar.n10(a)gmail.com&gt; wrote:
> >
> >> Hi
> >>
> >> I am new to cobbler.
> >>
> >> I am trying to resolve a cobbler issue, request your help/guidance on
> >> the same. we have spacewalk with cobbler. when I add a new host and do a
> >> cobbler sync, i am getting the below error and TASK FAILED.
> >>
> >> rendering DHCP files
> >> generating /etc/dhcp/dhcpd.conf
> >> Exception occured: <class 'cexceptions.CX'>
> >> Exception value: 'Error templating file, check cobbler.log for more
> >> details'
> >> when I cross check the cobbler.log, these entries were recorded...
> >>
> >> Mon Apr 25 14:44:45 2016 - WARNING | errors were encountered rendering
> >> the       template
> >> Mon Apr 25 14:44:45 2016 - WARNING |
> >> [{'code': u'VFFSL(SL,"net0",True)/mac',
> >> 'exc_val': NotFound("cannot find 'net0'",),
> >> 'lineCol': (2, 11),
> >> 'rawCode': u'${net0/mac}',
> >> 'time': 'Mon Apr 25 14:44:45 2016'}]
> >> _______________________________________________
> >> cobbler mailing list
> >> cobbler(a)lists.fedorahosted.org
> >> https://lists.fedorahosted.org/admin/lists/[e-mail]
> >>
> >
> > _______________________________________________
> > cobbler mailing list
> > cobbler(a)lists.fedorahosted.org
> > https://lists.fedorahosted.org/admin/lists/[e-mail]
> >
> >
>
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://lists.fedorahosted.org/admin/lists/[e-mail]
>
>

[Chris Johnson]

I have run into similar issues I think.  I've had to put print 
statements in cobbler's python code to figure them out.  I've found that 
cobble templater's error reporting often stinks.  But it's also possible 
I'm not that familiar with python's stack dump.

Take a look at what is in the dhcp_tags list and possibly how your 
ethernet/MAC addresses are defined.  I've seen cobbler fail like this 
when it looks for a value for parameter that isn't defined properly.  I 
ran into something similar with the suddenly missing if-gateway 
parameter a while back.

Just a guess mind you.


>  Someone else might be able to help more, I'm just kinda stabbing
> in 
>  the dark here.  Do you have "net0" defined somewhere in your 
>  /etc/cobbler/settings ?
>
>  On Apr 26, 2016 9:11 AM, "Nandakumar Nachimuthu" 
>  <nandakumar.n10(a)gmail.com <mailto:[e-mail]>> wrote:
>
>      Here it goes,
>
>      # ******************************************************************
>
>      ddns-update-style interim;
>
>      allow booting;
>      allow bootp;
>
>      ignore client-updates;
>      set vendorclass = option vendor-class-identifier;
>
>      # CHE subnets
>      subnet 10.220.5.0 netmask 255.255.255.0 {
>
>              option broadcast-address        10.220.5.255;
>              option routers                  10.220.5.1;
>              option subnet-mask  255.255.255.0;
>
>              option nis-domain               "corp.atmel.com
>      <http://corp.atmel.com>";
>              option domain-name              "corp.atmel.com
>      <http://corp.atmel.com>";
>              option domain-name-servers      10.220.5.24, 10.150.66.20;
>              option ntp-servers              10.220.5.24, 10.150.66.20;
>
>              default-lease-time              21600;
>              max-lease-time                  43200;
>
>              next-server                     $next_server;
>              filename  "/pxelinux.0";
>
>      }
>
>      #for dhcp_tag in $dhcp_tags.keys():
>          ## group could be subnet if your dhcp tags line up with your
>      subnets
>          ## or really any valid dhcpd.conf construct ... if you only
>      use the
>          ## default dhcp tag in cobbler, the group block can be deleted
>      for a
>          ## flat configuration
>      # group for Cobbler DHCP tag: $dhcp_tag
>      group {
>              #for mac in $dhcp_tags[$dhcp_tag].keys():
>                  #set iface = $dhcp_tags[$dhcp_tag][$mac]
>                  #set site = $iface.hostname[0:3]
>                  #set spwhost = {}
>                  #set spwhost['CHE'] = 'chespwprx01.corp.atmel.com
>      <http://chespwprx01.corp.atmel.com>'
>          host $iface.hostname {
>              hardware ethernet $mac;
>              #if $iface.ip_address:
>              fixed-address $iface.ip_address;
>              #end if
>              #if $iface.hostname:
>              option host-name "$iface.hostname";
>              #end if
>              #if $iface.netmask:
>              option subnet-mask $iface.netmask;
>              #end if
>              #if $iface.gateway:
>              option routers $iface.gateway;
>              #end if
>              #if $iface.enable_gpxe:
>              if exists user-class and option user-class = "gPXE" {
>                      filename
>      "http://$cobbler_server/cblr/svc/op/gpxe/system/$iface.owner";
>              } else if exists user-class and option user-class = "iPXE" {
>                      filename
>      "http://$cobbler_server/cblr/svc/op/gpxe/system/$iface.owner";
>              } else {
>                      filename "undionly.kpxe";
>              }
>              #else
>              filename "$iface.filename";
>              #end if
>              ## Cobbler defaults to $next_server, but some users
>              ## may like to use $iface.system.server for proxied setups
>              next-server $spwhost[$site.upper()];
>              ## next-server $iface.next_server;
>          }
>              #end for
>      }
>      #end for
>
>
>
>      Thanks
>      Nandakumar
>
>      On Tue, Apr 26, 2016 at 9:24 PM, Locane <locane(a)gmail.com
>      <mailto:[e-mail]>> wrote:
>
>          What does your template look like?
>
>          On Apr 26, 2016 4:48 AM, <nandakumar.n10(a)gmail.com
>          <mailto:[e-mail]>> wrote:
>
>              Hi
>
>              I am new to cobbler.
>
>              I am trying to resolve a cobbler issue, request your
>              help/guidance on the same. we have spacewalk with cobbler.
>              when I add a new host and do a cobbler sync, i am getting
>              the below error and TASK FAILED.
>
>              rendering DHCP files
>              generating /etc/dhcp/dhcpd.conf
>              Exception occured: <class 'cexceptions.CX'>
>              Exception value: 'Error templating file, check cobbler.log
>              for more details'
>              when I cross check the cobbler.log, these entries were
>              recorded...
>
>              Mon Apr 25 14:44:45 2016 - WARNING | errors were
>              encountered rendering the       template
>              Mon Apr 25 14:44:45 2016 - WARNING |
>              [{'code': u'VFFSL(SL,"net0",True)/mac',
>              'exc_val': NotFound("cannot find 'net0'",),
>              'lineCol': (2, 11),
>              'rawCode': u'${net0/mac}',
>              'time': 'Mon Apr 25 14:44:45 2016'}]
>              _______________________________________________
>              cobbler mailing list
>              cobbler(a)lists.fedorahosted.org
>              <mailto:[e-mail]>
>              https://lists.fedorahosted.org/admin/lists/[e-mail]
>
>
>          _______________________________________________
>          cobbler mailing list
>          cobbler(a)lists.fedorahosted.org
>          <mailto:[e-mail]>
>          https://lists.fedorahosted.org/admin/lists/[e-mail]
>
>
>
>      _______________________________________________
>      cobbler mailing list
>      cobbler(a)lists.fedorahosted.org <mailto:[e-mail]>
>      https://lists.fedorahosted.org/admin/lists/[e-mail]
>
>
>
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://lists.fedorahosted.org/admin/lists/[e-mail] 

-- 

Chris Johnson 	rchristopherjohnson(a)gmail.com
Ex SysAdmin, now aspiring writer 	I sometimes think that God in creating 
man somewhat overestimated his ability.
(Oscar Wilde)

[Nandakumar Nachimuthu]

No I am not Locane...

On Tue, Apr 26, 2016 at 9:49 PM, Locane <locane(a)gmail.com&gt; wrote:

>  Someone else might be able to help more, I'm just kinda stabbing
> in the
>  dark here.  Do you have "net0" defined somewhere in your
>  /etc/cobbler/settings ?
>  On Apr 26, 2016 9:11 AM, "Nandakumar Nachimuthu"
> <nandakumar.n10(a)gmail.com&gt;
>  wrote:
>
> > Here it goes,
> >
> > # ******************************************************************
> >
> > ddns-update-style interim;
> >
> > allow booting;
> > allow bootp;
> >
> > ignore client-updates;
> > set vendorclass = option vendor-class-identifier;
> >
> > # CHE subnets
> > subnet 10.220.5.0 netmask 255.255.255.0 {
> >
> >         option broadcast-address        10.220.5.255;
> >         option routers                  10.220.5.1;
> >         option subnet-mask              255.255.255.0;
> >
> >         option nis-domain               "corp.atmel.com";
> >         option domain-name              "corp.atmel.com";
> >         option domain-name-servers      10.220.5.24, 10.150.66.20;
> >         option ntp-servers              10.220.5.24, 10.150.66.20;
> >
> >         default-lease-time              21600;
> >         max-lease-time                  43200;
> >
> >         next-server                     $next_server;
> >         filename                        "/pxelinux.0";
> >
> > }
> >
> > #for dhcp_tag in $dhcp_tags.keys():
> >     ## group could be subnet if your dhcp tags line up with your subnets
> >     ## or really any valid dhcpd.conf construct ... if you only use the
> >     ## default dhcp tag in cobbler, the group block can be deleted for a
> >     ## flat configuration
> > # group for Cobbler DHCP tag: $dhcp_tag
> > group {
> >         #for mac in $dhcp_tags[$dhcp_tag].keys():
> >             #set iface = $dhcp_tags[$dhcp_tag][$mac]
> >             #set site = $iface.hostname[0:3]
> >             #set spwhost = {}
> >             #set spwhost['CHE'] = 'chespwprx01.corp.atmel.com'
> >     host $iface.hostname {
> >         hardware ethernet $mac;
> >         #if $iface.ip_address:
> >         fixed-address $iface.ip_address;
> >         #end if
> >         #if $iface.hostname:
> >         option host-name "$iface.hostname";
> >         #end if
> >         #if $iface.netmask:
> >         option subnet-mask $iface.netmask;
> >         #end if
> >         #if $iface.gateway:
> >         option routers $iface.gateway;
> >         #end if
> >         #if $iface.enable_gpxe:
> >         if exists user-class and option user-class = "gPXE" {
> >                 filename "http://
> > $cobbler_server/cblr/svc/op/gpxe/system/$iface.owner";
> >         } else if exists user-class and option user-class = "iPXE" {
> >                 filename "http://
> > $cobbler_server/cblr/svc/op/gpxe/system/$iface.owner";
> >         } else {
> >                 filename "undionly.kpxe";
> >         }
> >         #else
> >         filename "$iface.filename";
> >         #end if
> >         ## Cobbler defaults to $next_server, but some users
> >         ## may like to use $iface.system.server for proxied setups
> >         next-server $spwhost[$site.upper()];
> >         ## next-server $iface.next_server;
> >     }
> >         #end for
> > }
> > #end for
> >
> >
> >
> > Thanks
> > Nandakumar
> >
> > On Tue, Apr 26, 2016 at 9:24 PM, Locane <locane(a)gmail.com&gt; wrote:
> >
> >> What does your template look like?
> >> On Apr 26, 2016 4:48 AM, <nandakumar.n10(a)gmail.com&gt; wrote:
> >>
> >>> Hi
> >>>
> >>> I am new to cobbler.
> >>>
> >>> I am trying to resolve a cobbler issue, request your help/guidance on
> >>> the same. we have spacewalk with cobbler. when I add a new host and do a
> >>> cobbler sync, i am getting the below error and TASK FAILED.
> >>>
> >>> rendering DHCP files
> >>> generating /etc/dhcp/dhcpd.conf
> >>> Exception occured: <class 'cexceptions.CX'>
> >>> Exception value: 'Error templating file, check cobbler.log for more
> >>> details'
> >>> when I cross check the cobbler.log, these entries were recorded...
> >>>
> >>> Mon Apr 25 14:44:45 2016 - WARNING | errors were encountered rendering
> >>> the       template
> >>> Mon Apr 25 14:44:45 2016 - WARNING |
> >>> [{'code': u'VFFSL(SL,"net0",True)/mac',
> >>> 'exc_val': NotFound("cannot find 'net0'",),
> >>> 'lineCol': (2, 11),
> >>> 'rawCode': u'${net0/mac}',
> >>> 'time': 'Mon Apr 25 14:44:45 2016'}]
> >>> _______________________________________________
> >>> cobbler mailing list
> >>> cobbler(a)lists.fedorahosted.org
> >>>
> >>> https://lists.fedorahosted.org/admin/lists/[e-mail]
> >>>
> >>
> >> _______________________________________________
> >> cobbler mailing list
> >> cobbler(a)lists.fedorahosted.org
> >> https://lists.fedorahosted.org/admin/lists/[e-mail]
> >>
> >>
> >
> > _______________________________________________
> > cobbler mailing list
> > cobbler(a)lists.fedorahosted.org
> > https://lists.fedorahosted.org/admin/lists/[e-mail]
> >
> >
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://lists.fedorahosted.org/admin/lists/[e-mail]
>
>