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Matt Adams

2009-May-26 06:54 UTC

[Puppet Users] exec onlyif not cooperating on RHEL4

Hi,

I''m using Puppet 0.24.8 and facter 1.5.4 on RHEL4 update 7.

The version of Ruby is vendor supplied (ruby-1.8.1-7.el4_7.2).  I know 
that this is below the recommended version but replacing the supplied 
binary from Red Hat is probably not an option at this time.

In one of my classes I have the following type instance:

exec {
     "sendmail_m4compile":
         command => "make -C /etc/mail; service sendmail restart",
         require => File["sendmail.mc"],
         onlyif  => "m4 /etc/mail/sendmail.mc | diff 
--ignore-matching-lines=\"^##### built\" - /etc/mail/sendmail.cf; [[
$?
-eq 0 ]] && exit 1"
     }

According to the docs, the command in onlyif SHOULD return 0 if the file 
is different from what is expected.  As I understand it this should 
cause the command to run.

Unfortunately it does not seem to matter what I do to the onlyif 
command; I cannot get the command to run when the file differs from what 
is expected.  I''ve tried many variations on onlyif but nothing seems to
trigger the command.

This is the output (I have removed some non-related lines) from puppetd 
when I run it as

# puppetd --test --debug

info: Caching catalog at /var/puppet/state/localconfig.yaml
notice: Starting catalog run
debug: 
/:main/Node[...]/general::mail/sendmail/Exec[sendmail_m4compile]/require: 
requires File[sendmail.mc]
debug: 
/:main/Node[...]/general::mail/sendmail/Service[sendmail]/require: 
requires Package[sendmail]
debug: 
/:main/Node[...]/general::mail/sendmail/File[sendmail.mc]/require: 
requires Package[sendmail]
debug: 
/:main/Node[...]/general::mail/sendmail/File[sendmail.mc]/content: 
Executing ''diff /etc/mail/sendmail.mc
/tmp/puppet-diffing16654.0''
1c1
< test 1
---
 > test 2
debug: /:main/Node[...]/general::mail/sendmail/File[sendmail.mc]: 
Changing content
debug: /:main/Node[...]/general::mail/sendmail/File[sendmail.mc]: 1 
change(s)
debug: /:main/Node[...]/general::mail/sendmail/Exec[sendmail_m4compile]: 
Executing check ''m4 /etc/mail/sendmail.mc | diff 
--ignore-matching-lines="^##### built" - /etc/mail/sendmail.cf; [[ $? 
-eq 0 ]] && exit 1''
debug: Executing ''m4 /etc/mail/sendmail.mc | diff 
--ignore-matching-lines="^##### built" - /etc/mail/sendmail.cf; [[ $? 
-eq 0 ]] && exit 1''
/usr/lib/site_ruby/1.8/puppet/util.rb:286: warning: fork terminates 
thread at /usr/lib/ruby/1.8/timeout.rb:41

Any suggestions as to what I''m doing wrong or perhaps what can be done 
to fix this bug or work around it would be great.


Thanks in advance,

Matt

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Chad Huneycutt

2009-May-26 12:24 UTC

head link

[Puppet Users] Re: exec onlyif not cooperating on RHEL4

I think the problem is that you are ''exit''ing.  It looks like
you are
doing that to invert the return code?  Try using ''unless''
instead of
''onlyif'', and you can drop everything after the diff.

On 5/26/09, Matt Adams <matt.adams@cypressinteractive.com>
wrote:>
> Hi,
>
> I''m using Puppet 0.24.8 and facter 1.5.4 on RHEL4 update 7.
>
> The version of Ruby is vendor supplied (ruby-1.8.1-7.el4_7.2).  I know
> that this is below the recommended version but replacing the supplied
> binary from Red Hat is probably not an option at this time.
>
> In one of my classes I have the following type instance:
>
> exec {
>      "sendmail_m4compile":
>          command => "make -C /etc/mail; service sendmail
restart",
>          require => File["sendmail.mc"],
>          onlyif  => "m4 /etc/mail/sendmail.mc | diff
> --ignore-matching-lines=\"^##### built\" - /etc/mail/sendmail.cf;
[[ $?
> -eq 0 ]] && exit 1"
>      }
>
> According to the docs, the command in onlyif SHOULD return 0 if the file
> is different from what is expected.  As I understand it this should
> cause the command to run.
>
> Unfortunately it does not seem to matter what I do to the onlyif
> command; I cannot get the command to run when the file differs from what
> is expected.  I''ve tried many variations on onlyif but nothing
seems to
> trigger the command.
>
> This is the output (I have removed some non-related lines) from puppetd
> when I run it as
>
> # puppetd --test --debug
>
> info: Caching catalog at /var/puppet/state/localconfig.yaml
> notice: Starting catalog run
> debug:
> /:main/Node[...]/general::mail/sendmail/Exec[sendmail_m4compile]/require:
> requires File[sendmail.mc]
> debug:
> /:main/Node[...]/general::mail/sendmail/Service[sendmail]/require:
> requires Package[sendmail]
> debug:
> /:main/Node[...]/general::mail/sendmail/File[sendmail.mc]/require:
> requires Package[sendmail]
> debug:
> /:main/Node[...]/general::mail/sendmail/File[sendmail.mc]/content:
> Executing ''diff /etc/mail/sendmail.mc
/tmp/puppet-diffing16654.0''
> 1c1
> < test 1
> ---
>  > test 2
> debug: /:main/Node[...]/general::mail/sendmail/File[sendmail.mc]:
> Changing content
> debug: /:main/Node[...]/general::mail/sendmail/File[sendmail.mc]: 1
> change(s)
> debug: /:main/Node[...]/general::mail/sendmail/Exec[sendmail_m4compile]:
> Executing check ''m4 /etc/mail/sendmail.mc | diff
> --ignore-matching-lines="^##### built" - /etc/mail/sendmail.cf;
[[ $?
> -eq 0 ]] && exit 1''
> debug: Executing ''m4 /etc/mail/sendmail.mc | diff
> --ignore-matching-lines="^##### built" - /etc/mail/sendmail.cf;
[[ $?
> -eq 0 ]] && exit 1''
> /usr/lib/site_ruby/1.8/puppet/util.rb:286: warning: fork terminates
> thread at /usr/lib/ruby/1.8/timeout.rb:41
>
> Any suggestions as to what I''m doing wrong or perhaps what can be
done
> to fix this bug or work around it would be great.
>
>
> Thanks in advance,
>
> Matt
>
> >
>
-- 
Sent from my mobile device

Chad M. Huneycutt

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Matt Adams

2009-May-26 13:29 UTC

head link

[Puppet Users] Re: exec onlyif not cooperating on RHEL4

Chad Huneycutt wrote:
> I think the problem is that you are ''exit''ing.  It looks
like you are
> doing that to invert the return code?  Try using ''unless''
instead of
> ''onlyif'', and you can drop everything after the diff.
Perfect.  Thanks, Chad.  I should have read a little further down the 
type reference page.


Matt

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Puppet users - May 2009 - exec onlyif not cooperating on RHEL4

[Puppet Users] exec onlyif not cooperating on RHEL4

[Puppet Users] Re: exec onlyif not cooperating on RHEL4

[Puppet Users] Re: exec onlyif not cooperating on RHEL4