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Ashley Penney

2008-Mar-19 15:59 UTC

[Puppet Users] Network interfaces (and deleting them)

I''m in a bit of a pickle and I can''t work out a safe way to do
something.  I currently have a define called ip that I use to define
network interfaces.  The built in method didn''t seem to work, so I
designed this to write out the /etc/sysconfig/network-scripts/ifcfg-
ethX file.

However, I started thinking about what if I decide to define an eth0:0
for some purpose, and later wish to remove it.  How could I write a
tidy file stanza that would delete ifcfg-ethX, but skip over ones I
had defined previously?

My only other thought was to find a way to build all the ifcfg-eth
files in one location and then delete the existing ones and move the
newly generated ones into place.  I''d have to stop using a define,
because I''d only want to run the delete/move once at the end of all
the generation.  Can anyone suggest a method?
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Andrew Otto

2008-Mar-19 16:41 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

Ha, I don''t have a solution to your problem, but I can''t get
the
interface resource to work for me either.  Could you provide your  
define?

Thanks!

-Andrew Otto


On Mar 19, 2008, at 10:59 PM, Ashley Penney wrote:
>
> I''m in a bit of a pickle and I can''t work out a safe way
to do
> something.  I currently have a define called ip that I use to define
> network interfaces.  The built in method didn''t seem to work, so I
> designed this to write out the /etc/sysconfig/network-scripts/ifcfg-
> ethX file.
>
> However, I started thinking about what if I decide to define an eth0:0
> for some purpose, and later wish to remove it.  How could I write a
> tidy file stanza that would delete ifcfg-ethX, but skip over ones I
> had defined previously?
>
> My only other thought was to find a way to build all the ifcfg-eth
> files in one location and then delete the existing ones and move the
> newly generated ones into place.  I''d have to stop using a define,
> because I''d only want to run the delete/move once at the end of
all
> the generation.  Can anyone suggest a method?
> >

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Ashley Penney

2008-Mar-19 16:46 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

Sure, I have this as a module, so I have the files:
network/manifests/init.pp
network/manifests/service.pp

It''s still kind of a work in progess, I am going to add a case
statement to
check for $enabled and use ensure => absent if it''s disabled.  In
addition I
have to wrapper the service.pp part with a redhat check as well!

-------- init.pp
## Setup static IP configuration for RHEL5
##

class network {
    include network::service
}

##
## Define a network interface.
##

define network::ip($ip, $netmask, $network = '''', $broadcast =
'''', $gateway
='''', $onboot = ''yes'', $hostname =
'''', $enabled = ''yes'') {
$device = $name

    case $operatingsystem {
RedHat: {
    file { "ifcfg-$device":
    path => "/etc/sysconfig/network-scripts/ifcfg-$device",
    owner => root,
    group => root,
    mode => 644,
    content => template("network/ifcfg.erb"),
    notify => Service[network],
    }
    if $gateway {
file { "network":
    path => "/etc/sysconfig/network",
    owner => root,
    group => root,
    mode => 644,
    content => template("network/network.erb"),
    notify => Service[network],
}
    }

}
    }
}

------- service.pp

##
## network::service
##

class network::service {
        service { network:
                ensure => "running",
                hasrestart => "true",
                restart => "/etc/init.d/network restart",
        }
}



On Wed, Mar 19, 2008 at 12:41 PM, Andrew Otto <acotto@gmail.com> wrote:
>
> Ha, I don''t have a solution to your problem, but I can''t
get the
> interface resource to work for me either.  Could you provide your
> define?
>
> Thanks!
>
> -Andrew Otto
>
>
> On Mar 19, 2008, at 10:59 PM, Ashley Penney wrote:
>
> >
> > I''m in a bit of a pickle and I can''t work out a safe
way to do
> > something.  I currently have a define called ip that I use to define
> > network interfaces.  The built in method didn''t seem to work,
so I
> > designed this to write out the /etc/sysconfig/network-scripts/ifcfg-
> > ethX file.
> >
> > However, I started thinking about what if I decide to define an eth0:0
> > for some purpose, and later wish to remove it.  How could I write a
> > tidy file stanza that would delete ifcfg-ethX, but skip over ones I
> > had defined previously?
> >
> > My only other thought was to find a way to build all the ifcfg-eth
> > files in one location and then delete the existing ones and move the
> > newly generated ones into place.  I''d have to stop using a
define,
> > because I''d only want to run the delete/move once at the end
of all
> > the generation.  Can anyone suggest a method?
> > >
>
>
> >
>
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Andrew Otto

2008-Mar-19 17:01 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

Oo, nice, thank you.

Do you think you could include your network/ifcfg.erb file as well?

Thanks so much!

-Andrew

On Mar 19, 2008, at 11:46 PM, Ashley Penney wrote:
> Sure, I have this as a module, so I have the files:
>
> network/manifests/init.pp
> network/manifests/service.pp
>
> It''s still kind of a work in progess, I am going to add a case  
> statement to check for $enabled and use ensure => absent if
it''s
> disabled.  In addition I have to wrapper the service.pp part with a  
> redhat check as well!
>
> -------- init.pp
> ## Setup static IP configuration for RHEL5
> ##
>
> class network {
>     include network::service
> }
>
> ##
> ## Define a network interface.
> ##
>
> define network::ip($ip, $netmask, $network = '''',
$broadcast = '''',
> $gateway ='''', $onboot = ''yes'',
$hostname = '''', $enabled = ''yes'') {
> $device = $name
>
>     case $operatingsystem {
> 	RedHat: {
> 	    file { "ifcfg-$device":
> 	    path => "/etc/sysconfig/network-scripts/ifcfg-$device",
> 	    owner => root,
> 	    group => root,
> 	    mode => 644,
> 	    content => template("network/ifcfg.erb"),
> 	    notify => Service[network],
> 	    }
> 	
> 	    if $gateway {
> 		file { "network":
> 		    path => "/etc/sysconfig/network",
> 		    owner => root,
> 		    group => root,
> 		    mode => 644,
> 		    content => template("network/network.erb"),
> 		    notify => Service[network],
> 		}
> 	    }
>
> 	}
>     }
> }
>
> ------- service.pp
>
> ##
> ## network::service
> ##
>
> class network::service {
>         service { network:
>                 ensure => "running",
>                 hasrestart => "true",
>                 restart => "/etc/init.d/network restart",
>         }
> }
>
>
>
> On Wed, Mar 19, 2008 at 12:41 PM, Andrew Otto <acotto@gmail.com>  
> wrote:
>
> Ha, I don''t have a solution to your problem, but I can''t
get the
> interface resource to work for me either.  Could you provide your
> define?
>
> Thanks!
>
> -Andrew Otto
>
>
> On Mar 19, 2008, at 10:59 PM, Ashley Penney wrote:
>
> >
> > I''m in a bit of a pickle and I can''t work out a safe
way to do
> > something.  I currently have a define called ip that I use to define
> > network interfaces.  The built in method didn''t seem to work,
so I
> > designed this to write out the /etc/sysconfig/network-scripts/ifcfg-
> > ethX file.
> >
> > However, I started thinking about what if I decide to define an  
> eth0:0
> > for some purpose, and later wish to remove it.  How could I write a
> > tidy file stanza that would delete ifcfg-ethX, but skip over ones I
> > had defined previously?
> >
> > My only other thought was to find a way to build all the ifcfg-eth
> > files in one location and then delete the existing ones and move the
> > newly generated ones into place.  I''d have to stop using a
define,
> > because I''d only want to run the delete/move once at the end
of all
> > the generation.  Can anyone suggest a method?
> > >
>
>
>
>
>
> >

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Ashley Penney

2008-Mar-19 17:15 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

Oh, of course, I actually just changed the define so that if you call it
with enable set to no, it''ll delete the ifcfg-ethX file so you
don''t end up
with a mess!
#
## Define a network interface.
##

define network::ip($ip, $netmask, $network = '''', $broadcast =
'''', $gateway
='''', $onboot = ''yes'', $hostname =
'''', $enabled = ''yes'') {
$device = $name

    case $operatingsystem {
RedHat: {
    case $enabled {
''yes'': {
    file { "ifcfg-$device":
path => "/etc/sysconfig/network-scripts/ifcfg-$device",
owner => root,
group => root,
mode => 644,
content => template("network/ifcfg.erb"),
ensure => present,
notify => Service[network],
    }
}
''no'': {
    file { "ifcfg-$device":
path => "/etc/sysconfig/network-scripts/ifcfg-$device",
ensure => absent,
notify => Service[network],
    }
}
    }

    if $gateway {
file { "network":
    path => "/etc/sysconfig/network",
    owner => root,
    group => root,
    mode => 644,
    content => template("network/network.erb"),
    notify => Service[network],
}
    }
}
    }
}

----- template

[root@hlstestrhel01 manifests]# cat ../templates/ifcfg.erb
DEVICE=<%= device %>
BOOTPROTO=static
BROADCAST=<%= broadcast %>
IPADDR=<%= ip %>
NETMASK=<%= netmask %>
NETWORK=<%= network %>
ONBOOT=yes
TYPE=Ethernet


On Wed, Mar 19, 2008 at 1:01 PM, Andrew Otto <acotto@gmail.com> wrote:
> Oo, nice, thank you.
> Do you think you could include your network/ifcfg.erb file as well?
>
> Thanks so much!
>
> -Andrew
>
> On Mar 19, 2008, at 11:46 PM, Ashley Penney wrote:
>
> Sure, I have this as a module, so I have the files:
> network/manifests/init.pp
> network/manifests/service.pp
>
> It''s still kind of a work in progess, I am going to add a case
statement
> to check for $enabled and use ensure => absent if it''s
disabled.  In
> addition I have to wrapper the service.pp part with a redhat check as
> well!
>
> -------- init.pp
> ## Setup static IP configuration for RHEL5
> ##
>
> class network {
>     include network::service
> }
>
> ##
> ## Define a network interface.
> ##
>
> define network::ip($ip, $netmask, $network = '''',
$broadcast = '''', $gateway
> ='''', $onboot = ''yes'', $hostname =
'''', $enabled = ''yes'') {
> $device = $name
>
>     case $operatingsystem {
> RedHat: {
>     file { "ifcfg-$device":
>     path => "/etc/sysconfig/network-scripts/ifcfg-$device",
>     owner => root,
>     group => root,
>     mode => 644,
>     content => template("network/ifcfg.erb"),
>     notify => Service[network],
>     }
>      if $gateway {
> file { "network":
>     path => "/etc/sysconfig/network",
>     owner => root,
>     group => root,
>     mode => 644,
>     content => template("network/network.erb"),
>     notify => Service[network],
>  }
>     }
>
> }
>     }
> }
>
> ------- service.pp
>
> ##
> ## network::service
> ##
>
> class network::service {
>         service { network:
>                 ensure => "running",
>                 hasrestart => "true",
>                 restart => "/etc/init.d/network restart",
>         }
> }
>
>
>
> On Wed, Mar 19, 2008 at 12:41 PM, Andrew Otto <acotto@gmail.com>
wrote:
>
> >
> > Ha, I don''t have a solution to your problem, but I
can''t get the
> > interface resource to work for me either.  Could you provide your
> > define?
> >
> > Thanks!
> >
> > -Andrew Otto
> >
> >
> > On Mar 19, 2008, at 10:59 PM, Ashley Penney wrote:
> >
> > >
> > > I''m in a bit of a pickle and I can''t work out a
safe way to do
> > > something.  I currently have a define called ip that I use to
define
> > > network interfaces.  The built in method didn''t seem to
work, so I
> > > designed this to write out the
/etc/sysconfig/network-scripts/ifcfg-
> > > ethX file.
> > >
> > > However, I started thinking about what if I decide to define an
eth0:0
> > > for some purpose, and later wish to remove it.  How could I write
a
> > > tidy file stanza that would delete ifcfg-ethX, but skip over ones
I
> > > had defined previously?
> > >
> > > My only other thought was to find a way to build all the
ifcfg-eth
> > > files in one location and then delete the existing ones and move
the
> > > newly generated ones into place.  I''d have to stop using
a define,
> > > because I''d only want to run the delete/move once at the
end of all
> > > the generation.  Can anyone suggest a method?
> > > >
> >
> >
> >
> >
>
>
>
>
>
> >
>
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jtimberman

2008-Mar-20 19:23 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

On Mar 19, 10:41 am, Andrew Otto <aco...@gmail.com>
wrote:> Ha, I don''t have a solution to your problem, but I can''t
get the
> interface resource to work for me either.  Could you provide your
> define?
Hello Andrew.

I also found the built in interface type to be insufficient, and I
wrote my own. This was primarily to address some additional interface
"types" we need - bonded interfaces, openbsd trunks and "up"
interfaces that do not have an IP address. Unfortunately I can''t yet
release the configuration we''re using, but once I have permission I
plan to release the entire network module on the recipes page, which
contains defined types and templates for CentOS / Red Hat and OpenBSD.

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Luke Kanies

2008-Mar-20 19:24 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

On Mar 20, 2008, at 2:23 PM, jtimberman wrote:
> I also found the built in interface type to be insufficient, and I
> wrote my own. This was primarily to address some additional interface
> "types" we need - bonded interfaces, openbsd trunks and
"up"
> interfaces that do not have an IP address. Unfortunately I can''t
yet
> release the configuration we''re using, but once I have permission
I
> plan to release the entire network module on the recipes page, which
> contains defined types and templates for CentOS / Red Hat and OpenBSD.

I don''t suppose any of you are interested in spending this development
time fixing the built-in interface type, rather than creating new  
ones?  Or even just replacing it with one all your own, I don''t really
care.

I just see a lot of people spending development effort replacing,  
rather than fixing, which seems wasteful.

-- 
Humphrey''s Law of the Efficacy of Prayer:
     In a dangerous world there will always be more people around whose
     prayers for their own safety have been answered than those whose
     prayers have not.
---------------------------------------------------------------------
Luke Kanies | http://reductivelabs.com | http://madstop.com


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Ashley Penney

2008-Mar-21 16:04 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

I felt bad about our duplication of effort, so I started trying to get into
resolving this, and I''ve made
http://reductivelabs.com/trac/puppet/ticket/1152 to track the (limited) work
I''ve done.  What''s left is to figure out why name= is suddenly
broken, and
then perhaps extend the redhat.rb to build the other variables into the
template file (I did this locally but it''s only two lines so I
didn''t diff
yet).

On Thu, Mar 20, 2008 at 3:24 PM, Luke Kanies <luke@madstop.com> wrote:
>
> On Mar 20, 2008, at 2:23 PM, jtimberman wrote:
>
> > I also found the built in interface type to be insufficient, and I
> > wrote my own. This was primarily to address some additional interface
> > "types" we need - bonded interfaces, openbsd trunks and
"up"
> > interfaces that do not have an IP address. Unfortunately I
can''t yet
> > release the configuration we''re using, but once I have
permission I
> > plan to release the entire network module on the recipes page, which
> > contains defined types and templates for CentOS / Red Hat and OpenBSD.
>
>
> I don''t suppose any of you are interested in spending this
development
> time fixing the built-in interface type, rather than creating new
> ones?  Or even just replacing it with one all your own, I don''t
really
> care.
>
> I just see a lot of people spending development effort replacing,
> rather than fixing, which seems wasteful.
>
> --
> Humphrey''s Law of the Efficacy of Prayer:
>     In a dangerous world there will always be more people around whose
>     prayers for their own safety have been answered than those whose
>     prayers have not.
> ---------------------------------------------------------------------
> Luke Kanies | http://reductivelabs.com | http://madstop.com
>
>
> >
>
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Luke Kanies

2008-Mar-21 16:05 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

On Mar 21, 2008, at 11:04 AM, Ashley Penney wrote:
> I felt bad about our duplication of effort, so I started trying to  
> get into resolving this, and I''ve made
http://reductivelabs.com/trac/puppet/ticket/1152
>  to track the (limited) work I''ve done.  What''s left is
to figure
> out why name= is suddenly broken, and then perhaps extend the  
> redhat.rb to build the other variables into the template file (I did  
> this locally but it''s only two lines so I didn''t diff
yet).

Great; I''ll try to take a look at this over the weekend.  See how  
nicely I respond to efforts to help fix the problems? :)

-- 
What happens to the hole when the cheese is gone? -- Bertolt Brecht
---------------------------------------------------------------------
Luke Kanies | http://reductivelabs.com | http://madstop.com


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Ashley Penney

2008-Mar-21 16:17 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

I''m going to pick up a Ruby book this weekend (if I can) and start
trying to
get to grips with the syntax so that I can fix and extend the redhat.rb as
well, (as well as any other redhat specific providers).  You might even make
a ruby convert out making me help myself!

On Fri, Mar 21, 2008 at 12:05 PM, Luke Kanies <luke@madstop.com> wrote:
>
> On Mar 21, 2008, at 11:04 AM, Ashley Penney wrote:
>
> > I felt bad about our duplication of effort, so I started trying to
> > get into resolving this, and I''ve made
> http://reductivelabs.com/trac/puppet/ticket/1152
> >  to track the (limited) work I''ve done.  What''s left
is to figure
> > out why name= is suddenly broken, and then perhaps extend the
> > redhat.rb to build the other variables into the template file (I did
> > this locally but it''s only two lines so I didn''t
diff yet).
>
>
> Great; I''ll try to take a look at this over the weekend.  See how
> nicely I respond to efforts to help fix the problems? :)
>
> --
> What happens to the hole when the cheese is gone? -- Bertolt Brecht
> ---------------------------------------------------------------------
> Luke Kanies | http://reductivelabs.com | http://madstop.com
>
>
> >
>
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Luke Kanies

2008-Mar-21 16:48 UTC

head link

[Puppet Users] Re: Network interfaces (and deleting them)

On Mar 21, 2008, at 11:17 AM, Ashley Penney wrote:
> I''m going to pick up a Ruby book this weekend (if I can) and start
> trying to get to grips with the syntax so that I can fix and extend  
> the redhat.rb as well, (as well as any other redhat specific  
> providers).  You might even make a ruby convert out making me help  
> myself!

Welcome aboard. :)

I''ve heard "The Ruby Way" is a great book to learn with (as
opposed to
just a reference, which is mostly what Programming Ruby is good for).

I can also say that I''ve possibly been a bit lax in documenting the  
internals, mostly because of a lack of demand.  As people want more of  
it, I''ll provide more (or, as I''ve been doing with James
Turnbull
recently, I''ll describe and someone else can document).

-- 
Criminal: A person with predatory instincts who has not sufficient
capital to form a corporation. --Howard Scott
---------------------------------------------------------------------
Luke Kanies | http://reductivelabs.com | http://madstop.com


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Puppet users - Mar 2008 - Network interfaces (and deleting them)

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[Puppet Users] Re: Network interfaces (and deleting them)

[Puppet Users] Re: Network interfaces (and deleting them)

[Puppet Users] Re: Network interfaces (and deleting them)

[Puppet Users] Re: Network interfaces (and deleting them)

[Puppet Users] Re: Network interfaces (and deleting them)

[Puppet Users] Re: Network interfaces (and deleting them)

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