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Jan

2011-Apr-01 09:19 UTC

[Puppet Users] if statement: ''true'' from left operand of ''in'' expression is not a string

Hi *,

using the following snippet of code ..

------------------------------------------------------------------------
[...]
7      if ! ($installplugins in [ true, false ]) {
8         fail("nrpe installplugins parameter must be true or false")
9       }
[...]
24      if $installplugins == true {
25      package { ["mypluginpackage",
26         ensure => installed }
27      }
[...]
------------------------------------------------------------------------

.. puppet throws the following error:

------------------------------------------------------------------------
err: Could not retrieve catalog from remote server: Error 400 on SERVER:
''true'' from left operand of ''in'' expression
is not a string at
/etc/puppet/manifests/classes/monitoring.pp:7 on node puppet
------------------------------------------------------------------------

This snippet of code I got from the puppet style-guide:

http://docs.puppetlabs.com/guides/style_guide.html#class-inheritance

-> see the bluetooth class example

Any ideas? What am I missing?

Btw. I''m running a self-build version of puppet 2.6.4 without
additional
patches ...

Many thanks

Jan

-- 

                                  | Jan Dennis Bungart
   () ascii ribbon campaign       | Open Source Technician
   /\ - against HTML e-mail       | System- and Network Engineering
                                  | +49-(0)-160-90191003

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Denmat

2011-Apr-01 11:58 UTC

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Re: [Puppet Users] if statement: ''true'' from left operand of ''in'' expression is not a string

Hi,

Change 
> if $installplugins == true {
> 25      package { ["mypluginpackage",
> 26         ensure => installed }
> 27      }
To this
> if $installplugins  {
> 25      package { ["mypluginpackage",
> 26         ensure => installed }
> 27      }

Cheers,

On 01/04/2011, at 20:19, Jan <jan@agetty.de> wrote:
> Hi *,
> 
> using the following snippet of code ..
> 
> ------------------------------------------------------------------------
> [...]
> 7      if ! ($installplugins in [ true, false ]) {
> 8         fail("nrpe installplugins parameter must be true or
false")
> 9       }
> [...]
> 24      if $installplugins == true {
> 25      package { ["mypluginpackage",
> 26         ensure => installed }
> 27      }
> [...]
> ------------------------------------------------------------------------
> 
> .. puppet throws the following error:
> 
> ------------------------------------------------------------------------
> err: Could not retrieve catalog from remote server: Error 400 on SERVER:
> ''true'' from left operand of ''in''
expression is not a string at
> /etc/puppet/manifests/classes/monitoring.pp:7 on node puppet
> ------------------------------------------------------------------------
> 
> This snippet of code I got from the puppet style-guide:
> 
> http://docs.puppetlabs.com/guides/style_guide.html#class-inheritance
> 
> -> see the bluetooth class example
> 
> Any ideas? What am I missing?
> 
> Btw. I''m running a self-build version of puppet 2.6.4 without
additional
> patches ...
> 
> Many thanks
> 
> Jan
> 
> -- 
> 
>                                  | Jan Dennis Bungart
>   () ascii ribbon campaign       | Open Source Technician
>   /\ - against HTML e-mail       | System- and Network Engineering
>                                  | +49-(0)-160-90191003
> 
> -- 
> You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
> To post to this group, send email to puppet-users@googlegroups.com.
> To unsubscribe from this group, send email to
puppet-users+unsubscribe@googlegroups.com.
> For more options, visit this group at
http://groups.google.com/group/puppet-users?hl=en.
> 
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Denmat

2011-Apr-01 12:05 UTC

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Re: [Puppet Users] if statement: ''true'' from left operand of ''in'' expression is not a string

Sorry that''s probably a bit premature.

Ignore me.

On 01/04/2011, at 22:58, Denmat <tu2bgone@gmail.com> wrote:
> Hi,
> 
> Change 
> 
>> if $installplugins == true {
>> 25      package { ["mypluginpackage",
>> 26         ensure => installed }
>> 27      }
> 
> To this
> 
>> if $installplugins  {
>> 25      package { ["mypluginpackage",
>> 26         ensure => installed }
>> 27      }
> 
> 
> Cheers,
> 
> On 01/04/2011, at 20:19, Jan <jan@agetty.de> wrote:
> 
>> Hi *,
>> 
>> using the following snippet of code ..
>> 
>>
------------------------------------------------------------------------
>> [...]
>> 7      if ! ($installplugins in [ true, false ]) {
>> 8         fail("nrpe installplugins parameter must be true or
false")
>> 9       }
>> [...]
>> 24      if $installplugins == true {
>> 25      package { ["mypluginpackage",
>> 26         ensure => installed }
>> 27      }
>> [...]
>>
------------------------------------------------------------------------
>> 
>> .. puppet throws the following error:
>> 
>>
------------------------------------------------------------------------
>> err: Could not retrieve catalog from remote server: Error 400 on
SERVER:
>> ''true'' from left operand of ''in''
expression is not a string at
>> /etc/puppet/manifests/classes/monitoring.pp:7 on node puppet
>>
------------------------------------------------------------------------
>> 
>> This snippet of code I got from the puppet style-guide:
>> 
>> http://docs.puppetlabs.com/guides/style_guide.html#class-inheritance
>> 
>> -> see the bluetooth class example
>> 
>> Any ideas? What am I missing?
>> 
>> Btw. I''m running a self-build version of puppet 2.6.4 without
additional
>> patches ...
>> 
>> Many thanks
>> 
>> Jan
>> 
>> -- 
>> 
>>                                 | Jan Dennis Bungart
>>  () ascii ribbon campaign       | Open Source Technician
>>  /\ - against HTML e-mail       | System- and Network Engineering
>>                                 | +49-(0)-160-90191003
>> 
>> -- 
>> You received this message because you are subscribed to the Google
Groups "Puppet Users" group.
>> To post to this group, send email to puppet-users@googlegroups.com.
>> To unsubscribe from this group, send email to
puppet-users+unsubscribe@googlegroups.com.
>> For more options, visit this group at
http://groups.google.com/group/puppet-users?hl=en.
>> 
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Ben Hughes

2011-Apr-04 01:29 UTC

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Re: [Puppet Users] if statement: ''true'' from left operand of ''in'' expression is not a string

On Fri, Apr 01, 2011 at 11:19:16AM +0200, Jan wrote:
> Any ideas? What am I missing?
If you quote the true/falses, it works.


In the style guide, they''re being used as variables for setting options
of
a type: hasstatus => $trueorfalsevar.

However, if you want to evaluate them, they need to be quoted I''m
afraid.

$installplugins  = ''true''

if ! ($installplugins in [ ''true'', ''false''
]) {
    fail("nrpe installplugins parameter must be true or false")
}

if $installplugins == ''true'' {
    notice( "I work, hurrah" )
}

-- 
Ben Hughes || http://www.puppetlabs.com/

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jcbollinger

2011-Apr-04 13:39 UTC

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[Puppet Users] Re: if statement: ''true'' from left operand of ''in'' expression is not a string

On Apr 3, 8:29 pm, Ben Hughes <b...@puppetlabs.com>
wrote:> On Fri, Apr 01, 2011 at 11:19:16AM +0200, Jan wrote:
> > Any ideas? What am I missing?
>
> If you quote the true/falses, it works.
>
> In the style guide, they''re being used as variables for setting
options of
> a type: hasstatus => $trueorfalsevar.
>
> However, if you want to evaluate them, they need to be quoted I''m
afraid.
>
> $installplugins  = ''true''
>
> if ! ($installplugins in [ ''true'',
''false'' ]) {
>     fail("nrpe installplugins parameter must be true or false")
>
> }
>
> if $installplugins == ''true'' {
>     notice( "I work, hurrah" )
>
> }
Curious.  From the message, I would guess that this would (also) work:

if ! ("$installplugins" in [ true, false ]) {
  fail("nrpe installplugins parameter must be true or false")
}

(Since it''s the *left* side of the in operator that Puppet complains
about not being a string.)  Of course, it''s quite inconsistent that if
one assigns bareword true to a variable, one cannot subsequently
compare that variable against the same value, or against an array that
(appears to) contain that value.  I call bug, and I recommend filing a
ticket.

John

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