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Jay

2013-Oct-10 01:13 UTC

[Puppet Users] Is there a way to return/skip module code based on a validation

Hi,

I have a puppet module with more than 15 blocks of resources.. based on a 
validation I want puppet to decide to continue next blocks or skip with a 
warning(with out failing).

currently I am doing this with a big if block.

class mymodule {
  if $::flag_enabled {
    package {...}

    files {...}
    ....
  }
  else
  {
    warning("Flag is disabled")
  }
}

Is there a way to skip the module something like this?

class mymodule {

  if not $::flag_enabled {
    warning("Flag is disabled, skipping mymodule")
    //skip executing below resources
  }
  package {..}
  file {...}
}

Appreciate your help on this.

Regards,
Jay

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Ryan Coleman

2013-Oct-10 06:27 UTC

head link

Re: [Puppet Users] Is there a way to return/skip module code based on a validation

Hi Jay,

You could simplify things a little using ''unless'' which acts
like the
reverse of ''if''. You''d place your resources within
the unless block so that
they''d only be included in your catalog if your Fact or variable
evaluated
to false.
http://docs.puppetlabs.com/puppet/3/reference/lang_conditional.html#unless-statements

I suspect this isn''t exactly what you''re looking for I wanted
to take this
opportunity to remind you that Puppet 3.2 introduced an experimental future
parser that makes it pretty simple to collect and iterate over things.
Maybe it''ll help at some point down the road.
http://docs.puppetlabs.com/puppet/3/reference/lang_experimental_3_2.html

Hope that helps,
--Ryan

On Wed, Oct 9, 2013 at 6:13 PM, Jay <jayachandran.rn@gmail.com> wrote:
> Hi,
>
> I have a puppet module with more than 15 blocks of resources.. based on a
> validation I want puppet to decide to continue next blocks or skip with a
> warning(with out failing).
>
> currently I am doing this with a big if block.
>
> class mymodule {
>   if $::flag_enabled {
>     package {...}
>
>     files {...}
>     ....
>   }
>   else
>   {
>     warning("Flag is disabled")
>   }
> }
>
> Is there a way to skip the module something like this?
>
> class mymodule {
>
>   if not $::flag_enabled {
>     warning("Flag is disabled, skipping mymodule")
>     //skip executing below resources
>   }
>   package {..}
>   file {...}
> }
>
> Appreciate your help on this.
>
> Regards,
> Jay
>
> --
> 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.
>


-- 
Ryan Coleman | Modules & Forge | ryanycoleman on twitter & #puppet IRC

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Jay

2013-Oct-10 18:13 UTC

head link

Re: [Puppet Users] Is there a way to return/skip module code based on a validation

Thanks Ryan!

I''m looking for something like a "break" statement, which
should not
proceed execution of following resources.

Anyway thanks for the information about future parser. Appreciate your time
in answering my question.


Thanks,

jay

On Oct 10, 2013 11:57 AM, "Ryan Coleman" <ryan@puppetlabs.com>
wrote:
> Hi Jay,
>
> You could simplify things a little using ''unless'' which
acts like the
> reverse of ''if''. You''d place your resources
within the unless block so that
> they''d only be included in your catalog if your Fact or variable
evaluated
> to false.
>
http://docs.puppetlabs.com/puppet/3/reference/lang_conditional.html#unless-statements
>
> I suspect this isn''t exactly what you''re looking for I
wanted to take this
> opportunity to remind you that Puppet 3.2 introduced an experimental future
> parser that makes it pretty simple to collect and iterate over things.
> Maybe it''ll help at some point down the road.
> http://docs.puppetlabs.com/puppet/3/reference/lang_experimental_3_2.html
>
> Hope that helps,
> --Ryan
>
> On Wed, Oct 9, 2013 at 6:13 PM, Jay <jayachandran.rn@gmail.com>
wrote:
>
>> Hi,
>>
>> I have a puppet module with more than 15 blocks of resources.. based on
a
>> validation I want puppet to decide to continue next blocks or skip with
a
>> warning(with out failing).
>>
>> currently I am doing this with a big if block.
>>
>> class mymodule {
>>   if $::flag_enabled {
>>     package {...}
>>
>>     files {...}
>>     ....
>>   }
>>   else
>>   {
>>     warning("Flag is disabled")
>>   }
>> }
>>
>> Is there a way to skip the module something like this?
>>
>> class mymodule {
>>
>>   if not $::flag_enabled {
>>     warning("Flag is disabled, skipping mymodule")
>>     //skip executing below resources
>>   }
>>   package {..}
>>   file {...}
>> }
>>
>> Appreciate your help on this.
>>
>> Regards,
>> Jay
>>
>> --
>> 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.
>>
>
>
>
> --
> Ryan Coleman | Modules & Forge | ryanycoleman on twitter & #puppet
IRC
>
>
>  --
> 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.
>
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Ryan Coleman

2013-Oct-10 18:16 UTC

head link

Re: [Puppet Users] Is there a way to return/skip module code based on a validation

On Thu, Oct 10, 2013 at 11:13 AM, Jay <jayachandran.rn@gmail.com> wrote:
> I''m looking for something like a "break" statement,
which should not
> proceed execution of following resources.
>
>Oh! The built-in fail() function will stop catalog compilation full-stop
and fail with a parse error. If what you''re looking for is to
effectively
abort the Puppet agent run based on some condition, that''s a good way
to do
it. http://docs.puppetlabs.com/references/latest/function.html#fail


-- 
Ryan Coleman | Modules & Forge | ryanycoleman on twitter & #puppet IRC

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Chad Huneycutt

2013-Oct-10 21:04 UTC

head link

Re: [Puppet Users] Is there a way to return/skip module code based on a validation

Remember that a puppet manifest is not a script.  You are simply
making an unordered list of resources to apply to a host.  With that
in mind, a "break" statement just doesn''t make sense.

I do feel your pain, though, and have struggled with the same issue
myself.  It feels wrong to have most of the lines of a class indented
an extra block.  Maybe you can put the conditional outside the code:

node mynode {
  if $::flag_enabled {
    include mymodule
  }
}

or even rewrite the class:

class mymodule {
  if $::flag_enabled {
    include mymodule::enabled
  } else {
    include mymodule::disabled
  }
}


- Chad

On Thu, Oct 10, 2013 at 2:13 PM, Jay <jayachandran.rn@gmail.com>
wrote:> Thanks Ryan!
>
> I''m looking for something like a "break" statement,
which should not proceed
> execution of following resources.
>
> Anyway thanks for the information about future parser. Appreciate your time
> in answering my question.
>
>
> Thanks,
>
> jay
>
> On Oct 10, 2013 11:57 AM, "Ryan Coleman"
<ryan@puppetlabs.com> wrote:
>>
>> Hi Jay,
>>
>> You could simplify things a little using ''unless''
which acts like the
>> reverse of ''if''. You''d place your resources
within the unless block so that
>> they''d only be included in your catalog if your Fact or
variable evaluated
>> to false.
>>
http://docs.puppetlabs.com/puppet/3/reference/lang_conditional.html#unless-statements
>>
>> I suspect this isn''t exactly what you''re looking for
I wanted to take this
>> opportunity to remind you that Puppet 3.2 introduced an experimental
future
>> parser that makes it pretty simple to collect and iterate over things.
Maybe
>> it''ll help at some point down the road.
>>
http://docs.puppetlabs.com/puppet/3/reference/lang_experimental_3_2.html
>>
>> Hope that helps,
>> --Ryan
>>
>> On Wed, Oct 9, 2013 at 6:13 PM, Jay <jayachandran.rn@gmail.com>
wrote:
>>>
>>> Hi,
>>>
>>> I have a puppet module with more than 15 blocks of resources..
based on a
>>> validation I want puppet to decide to continue next blocks or skip
with a
>>> warning(with out failing).
>>>
>>> currently I am doing this with a big if block.
>>>
>>> class mymodule {
>>>   if $::flag_enabled {
>>>     package {...}
>>>
>>>     files {...}
>>>     ....
>>>   }
>>>   else
>>>   {
>>>     warning("Flag is disabled")
>>>   }
>>> }
>>>
>>> Is there a way to skip the module something like this?
>>>
>>> class mymodule {
>>>
>>>   if not $::flag_enabled {
>>>     warning("Flag is disabled, skipping mymodule")
>>>     //skip executing below resources
>>>   }
>>>   package {..}
>>>   file {...}
>>> }
>>>
>>> Appreciate your help on this.
>>>
>>> Regards,
>>> Jay
>>>
>>> --
>>> 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.
>>
>>
>>
>>
>> --
>> Ryan Coleman | Modules & Forge | ryanycoleman on twitter &
#puppet IRC
>>
>>
>> --
>> 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.
> Visit this group at http://groups.google.com/group/puppet-users.
> For more options, visit https://groups.google.com/groups/opt_out.


-- 
Chad M. Huneycutt

-- 
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Puppet users - Oct 2013 - Is there a way to return/skip module code based on a validation

[Puppet Users] Is there a way to return/skip module code based on a validation

Re: [Puppet Users] Is there a way to return/skip module code based on a validation

Re: [Puppet Users] Is there a way to return/skip module code based on a validation

Re: [Puppet Users] Is there a way to return/skip module code based on a validation

Re: [Puppet Users] Is there a way to return/skip module code based on a validation