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Sergey Arlashin

2013-Aug-15 17:17 UTC

[Puppet Users] Puppet: chaining and conditionals

Hi!

I''m using the following way to define the order and assign classes to
nodes:

node nodename1, nodename2, nodename3, nodename4 {
   class { "class1": } ->
   class { "class2": } ->
   class { "class3": } ->
   class { "class4": } 
}

I''m fully delighted with it. 

But at the moment I need class2 to be executed only on nodename2. The following
construction doesn''t work

node nodename1, nodename2, nodename3, nodename4 {
   class { "class1": } ->
   if $fqdn == "nodename2" {
      class { "class2": } ->
   }
   class { "class3": } ->
   class { "class4": } 
}

And this construction breaks the order:

node nodename1, nodename2, nodename3, nodename4 {
   class { "class1": } 
   if $fqdn == "nodename2" {
      Class["class1"] -> class { "class2": } 
   }
   class { "class3": } ->
   class { "class4": } 
}

What do I do in a situation like this? 


Thanks in advance.

Sergey. 


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Dan White

2013-Aug-15 17:25 UTC

head link

Re: [Puppet Users] Puppet: chaining and conditionals

Here''s one way:

node nodename1, nodename3, nodename4 {
   class { "class1": } ->
   class { "class3": } ->
   class { "class4": } 
}

node nodename2 {
   class { "class1": } ->
   class { "class2": } ->
   class { "class3": } ->
   class { "class4": } 
}

“Sometimes I think the surest sign that intelligent life exists elsewhere in the
universe is that none of it has tried to contact us.”
Bill Waterson (Calvin & Hobbes)

----- Original Message -----
From: "Sergey Arlashin" <sergeyarl.maillist@gmail.com>
To: puppet-users@googlegroups.com
Sent: Thursday, August 15, 2013 1:17:46 PM
Subject: [Puppet Users] Puppet: chaining and conditionals

Hi!

I''m using the following way to define the order and assign classes to
nodes:

node nodename1, nodename2, nodename3, nodename4 {
   class { "class1": } ->
   class { "class2": } ->
   class { "class3": } ->
   class { "class4": } 
}

I''m fully delighted with it. 

But at the moment I need class2 to be executed only on nodename2. The following
construction doesn''t work

node nodename1, nodename2, nodename3, nodename4 {
   class { "class1": } ->
   if $fqdn == "nodename2" {
      class { "class2": } ->
   }
   class { "class3": } ->
   class { "class4": } 
}

And this construction breaks the order:

node nodename1, nodename2, nodename3, nodename4 {
   class { "class1": } 
   if $fqdn == "nodename2" {
      Class["class1"] -> class { "class2": } 
   }
   class { "class3": } ->
   class { "class4": } 
}

What do I do in a situation like this? 


Thanks in advance.

Sergey. 


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Arthur Furlan

2013-Aug-15 17:27 UTC

head link

Re: [Puppet Users] Puppet: chaining and conditionals

Have you tried putting all the classes in the conditional?

node nodename1, nodename2, nodename3, nodename4 {
   if $fqdn == "nodename2" {
      class { "class1": } ->
      class { "class2": } ->
      class { "class3": } ->
      class { "class4": }
   } else {
      class { "class1": } ->
      class { "class3": } ->
      class { "class4": }
   }
}


-- Arthur Furlan


On Thu, Aug 15, 2013 at 2:17 PM, Sergey Arlashin
<sergeyarl.maillist@gmail.com> wrote:> Hi!
>
> I''m using the following way to define the order and assign classes
to nodes:
>
> node nodename1, nodename2, nodename3, nodename4 {
>    class { "class1": } ->
>    class { "class2": } ->
>    class { "class3": } ->
>    class { "class4": }
> }
>
> I''m fully delighted with it.
>
> But at the moment I need class2 to be executed only on nodename2. The
following construction doesn''t work
>
> node nodename1, nodename2, nodename3, nodename4 {
>    class { "class1": } ->
>    if $fqdn == "nodename2" {
>       class { "class2": } ->
>    }
>    class { "class3": } ->
>    class { "class4": }
> }
>
> And this construction breaks the order:
>
> node nodename1, nodename2, nodename3, nodename4 {
>    class { "class1": }
>    if $fqdn == "nodename2" {
>       Class["class1"] -> class { "class2": }
>    }
>    class { "class3": } ->
>    class { "class4": }
> }
>
> What do I do in a situation like this?
>
>
> Thanks in advance.
>
> Sergey.
>
>
> --
> You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
email to puppet-users+unsubscribe@googlegroups.com.
> To post to this group, send email to puppet-users@googlegroups.com.
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Sergey Arlashin

2013-Aug-15 17:33 UTC

head link

Re: [Puppet Users] Puppet: chaining and conditionals

Thank you for your reply.
This looks nice only if I have 4 classes. That was just an example. In reality I
have a huge number of classes assigned to this group of nodes. So I want to
avoid (if it is possible of course) declaring classes twice.





On Aug 15, 2013, at 9:27 PM, Arthur Furlan <afurlan@afurlan.org> wrote:
> Have you tried putting all the classes in the conditional?
> 
> node nodename1, nodename2, nodename3, nodename4 {
>   if $fqdn == "nodename2" {
>      class { "class1": } ->
>      class { "class2": } ->
>      class { "class3": } ->
>      class { "class4": }
>   } else {
>      class { "class1": } ->
>      class { "class3": } ->
>      class { "class4": }
>   }
> }
> 
> 
> -- Arthur Furlan
> 
> 
> On Thu, Aug 15, 2013 at 2:17 PM, Sergey Arlashin
> <sergeyarl.maillist@gmail.com> wrote:
>> Hi!
>> 
>> I''m using the following way to define the order and assign
classes to nodes:
>> 
>> node nodename1, nodename2, nodename3, nodename4 {
>>   class { "class1": } ->
>>   class { "class2": } ->
>>   class { "class3": } ->
>>   class { "class4": }
>> }
>> 
>> I''m fully delighted with it.
>> 
>> But at the moment I need class2 to be executed only on nodename2. The
following construction doesn''t work
>> 
>> node nodename1, nodename2, nodename3, nodename4 {
>>   class { "class1": } ->
>>   if $fqdn == "nodename2" {
>>      class { "class2": } ->
>>   }
>>   class { "class3": } ->
>>   class { "class4": }
>> }
>> 
>> And this construction breaks the order:
>> 
>> node nodename1, nodename2, nodename3, nodename4 {
>>   class { "class1": }
>>   if $fqdn == "nodename2" {
>>      Class["class1"] -> class { "class2": }
>>   }
>>   class { "class3": } ->
>>   class { "class4": }
>> }
>> 
>> What do I do in a situation like this?
>> 
>> 
>> Thanks in advance.
>> 
>> Sergey.
>> 
>> 
>> --
>> You received this message because you are subscribed to the Google
Groups "Puppet Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send
an email to puppet-users+unsubscribe@googlegroups.com.
>> To post to this group, send email to puppet-users@googlegroups.com.
>> Visit this group at http://groups.google.com/group/puppet-users.
>> For more options, visit https://groups.google.com/groups/opt_out.
> 
> -- 
> You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
email to puppet-users+unsubscribe@googlegroups.com.
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> For more options, visit https://groups.google.com/groups/opt_out.
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Peter Bukowinski

2013-Aug-15 17:54 UTC

head link

Re: [Puppet Users] Puppet: chaining and conditionals

If you don''t mind a hacky workaround, you can accomplish this with the
help of an empty class:

node nodename1, nodename2, nodename3, nodename4 {
    if $fqdn == "nodename2" {
        $class2 = "class2"
    } else {
        $class2 = "null_class"
    }
    class { "class1": } ->
    class { "$class2": } ->
    class { "class3": } ->
    class { "class4": }
}
class null_class { }

--
Peter Bukowinski

On Aug 15, 2013, at 1:33 PM, Sergey Arlashin
<sergeyarl.maillist@gmail.com> wrote:
> Thank you for your reply.
> This looks nice only if I have 4 classes. That was just an example. In
reality I have a huge number of classes assigned to this group of nodes. So I
want to avoid (if it is possible of course) declaring classes twice.
> 
> 
> 
> 
> 
> On Aug 15, 2013, at 9:27 PM, Arthur Furlan <afurlan@afurlan.org>
wrote:
> 
>> Have you tried putting all the classes in the conditional?
>> 
>> node nodename1, nodename2, nodename3, nodename4 {
>>  if $fqdn == "nodename2" {
>>     class { "class1": } ->
>>     class { "class2": } ->
>>     class { "class3": } ->
>>     class { "class4": }
>>  } else {
>>     class { "class1": } ->
>>     class { "class3": } ->
>>     class { "class4": }
>>  }
>> }
>> 
>> 
>> -- Arthur Furlan
>> 
>> 
>> On Thu, Aug 15, 2013 at 2:17 PM, Sergey Arlashin
>> <sergeyarl.maillist@gmail.com> wrote:
>>> Hi!
>>> 
>>> I''m using the following way to define the order and assign
classes to nodes:
>>> 
>>> node nodename1, nodename2, nodename3, nodename4 {
>>>  class { "class1": } ->
>>>  class { "class2": } ->
>>>  class { "class3": } ->
>>>  class { "class4": }
>>> }
>>> 
>>> I''m fully delighted with it.
>>> 
>>> But at the moment I need class2 to be executed only on nodename2.
The following construction doesn''t work
>>> 
>>> node nodename1, nodename2, nodename3, nodename4 {
>>>  class { "class1": } ->
>>>  if $fqdn == "nodename2" {
>>>     class { "class2": } ->
>>>  }
>>>  class { "class3": } ->
>>>  class { "class4": }
>>> }
>>> 
>>> And this construction breaks the order:
>>> 
>>> node nodename1, nodename2, nodename3, nodename4 {
>>>  class { "class1": }
>>>  if $fqdn == "nodename2" {
>>>     Class["class1"] -> class { "class2": }
>>>  }
>>>  class { "class3": } ->
>>>  class { "class4": }
>>> }
>>> 
>>> What do I do in a situation like this?
>>> 
>>> 
>>> Thanks in advance.
>>> 
>>> Sergey.
>>> 
>>> 
>>> --
>>> You received this message because you are subscribed to the Google
Groups "Puppet Users" group.
>>> To unsubscribe from this group and stop receiving emails from it,
send an email to puppet-users+unsubscribe@googlegroups.com.
>>> To post to this group, send email to puppet-users@googlegroups.com.
>>> Visit this group at http://groups.google.com/group/puppet-users.
>>> For more options, visit https://groups.google.com/groups/opt_out.
>> 
>> -- 
>> You received this message because you are subscribed to the Google
Groups "Puppet Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send
an email to puppet-users+unsubscribe@googlegroups.com.
>> To post to this group, send email to puppet-users@googlegroups.com.
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>> For more options, visit https://groups.google.com/groups/opt_out.
> 
> -- 
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Ellison Marks

2013-Aug-15 20:25 UTC

head link

[Puppet Users] Re: Puppet: chaining and conditionals

perhaps something like this?

node nodename1, nodename2, nodename3, nodename4 { 
   class { "class1": } 
   if $fqdn == "nodename2" { 
      Class["class1"] -> class { "class2": } -> class{
"class3" }
   } 
   else {
      Class["class1"] -> class { "class3": }
   }
   Class["class3"] -> 
   class { "class4": } 
} 

On Thursday, August 15, 2013 10:17:46 AM UTC-7, Sergey Arlashin
wrote:>
> Hi! 
>
> I''m using the following way to define the order and assign classes
to
> nodes: 
>
> node nodename1, nodename2, nodename3, nodename4 { 
>    class { "class1": } -> 
>    class { "class2": } -> 
>    class { "class3": } -> 
>    class { "class4": } 
> } 
>
> I''m fully delighted with it. 
>
> But at the moment I need class2 to be executed only on nodename2. The 
> following construction doesn''t work 
>
> node nodename1, nodename2, nodename3, nodename4 { 
>    class { "class1": } -> 
>    if $fqdn == "nodename2" { 
>       class { "class2": } -> 
>    } 
>    class { "class3": } -> 
>    class { "class4": } 
> } 
>
> And this construction breaks the order: 
>
> node nodename1, nodename2, nodename3, nodename4 { 
>    class { "class1": } 
>    if $fqdn == "nodename2" { 
>       Class["class1"] -> class { "class2": } 
>    } 
>    class { "class3": } -> 
>    class { "class4": } 
> } 
>
> What do I do in a situation like this? 
>
>
> Thanks in advance. 
>
> Sergey. 
>
>
>
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Sergey Arlashin

2013-Aug-17 21:54 UTC

head link

Re: [Puppet Users] Puppet: chaining and conditionals

Thank you all for your answers!
Finally I decided to modify a couple of my classes to look like:

class { "class1": } -> 
class { "class2":
   class_enabled => $fqdn ? {
     "nodename2" => "yes",
      default            => "no"
   }
} ->
class { "class3": }


--
best regards,
Sergey





On Aug 16, 2013, at 12:25 AM, Ellison Marks <gtyaoi@gmail.com> wrote:
> perhaps something like this?
> 
> node nodename1, nodename2, nodename3, nodename4 { 
>    class { "class1": } 
>    if $fqdn == "nodename2" { 
>       Class["class1"] -> class { "class2": } ->
class{ "class3" }
>    } 
>    else {
>       Class["class1"] -> class { "class3": }
>    }
>    Class["class3"] -> 
>    class { "class4": } 
> } 
> 
> On Thursday, August 15, 2013 10:17:46 AM UTC-7, Sergey Arlashin wrote:
> Hi! 
> 
> I''m using the following way to define the order and assign classes
to nodes:
> 
> node nodename1, nodename2, nodename3, nodename4 { 
>    class { "class1": } -> 
>    class { "class2": } -> 
>    class { "class3": } -> 
>    class { "class4": } 
> } 
> 
> I''m fully delighted with it. 
> 
> But at the moment I need class2 to be executed only on nodename2. The
following construction doesn''t work
> 
> node nodename1, nodename2, nodename3, nodename4 { 
>    class { "class1": } -> 
>    if $fqdn == "nodename2" { 
>       class { "class2": } -> 
>    } 
>    class { "class3": } -> 
>    class { "class4": } 
> } 
> 
> And this construction breaks the order: 
> 
> node nodename1, nodename2, nodename3, nodename4 { 
>    class { "class1": } 
>    if $fqdn == "nodename2" { 
>       Class["class1"] -> class { "class2": } 
>    } 
>    class { "class3": } -> 
>    class { "class4": } 
> } 
> 
> What do I do in a situation like this? 
> 
> 
> Thanks in advance. 
> 
> Sergey. 
> 
> 
> 
> -- 
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> To unsubscribe from this group and stop receiving emails from it, send an
email to puppet-users+unsubscribe@googlegroups.com.
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Puppet users - Aug 2013 - Puppet: chaining and conditionals

[Puppet Users] Puppet: chaining and conditionals

Re: [Puppet Users] Puppet: chaining and conditionals

Re: [Puppet Users] Puppet: chaining and conditionals

Re: [Puppet Users] Puppet: chaining and conditionals

Re: [Puppet Users] Puppet: chaining and conditionals

[Puppet Users] Re: Puppet: chaining and conditionals

Re: [Puppet Users] Puppet: chaining and conditionals