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Benoit BARTHELEMY

2013-Jan-24 08:16 UTC

[Puppet Users] Dependency Cycle with puppetlabs-mrepo

Hi, I''m gettinng a dependency cycle when using PE 2.7,
puppetlabs::mrepo,
"role classes" and hiera :

I''m trying to mirror RHN repos :

# ROLE CLASS
> class site::yum_repository{ 
>
> $repos = hiera(''site::yum_repository::repos'') 
> create_resources(mrepo::repo::rhn, $repos) 
> } 
>
# HIERA DEFAULTS
>      mrepo::params::src_root    : ''/srv/mrepo'' 
>   mrepo::params::www_root    : ''/srv/www/mrepo'' 
>   mrepo::params::user        : ''apache'' 
>   mrepo::params::group       : ''apache'' 
>   mrepo::params::mailto      : ''UNSET'' 
>   mrepo::params::source      : ''package'' 
>   mrepo::params::selinux     : false 
>   mrepo::params::rhn         : true 
>   mrepo::params::rhn_username: ''user'' 
>   mrepo::params::rhn_password: ''pass'' 
>

# NODE-SPECIFIC HIERA VALUES
> mrepo::params::src_root    : ''/srv/mrepo'' 
> mrepo::params::www_root    : ''/srv/www/mrepo'' 
> mrepo::params::user        : ''apache'' 
> mrepo::params::group       : ''apache'' 
> mrepo::params::source      : ''package'' 
> mrepo::params::rhn         : true 
> mrepo::params::rhn_username: ''mytrueaccount'' 
> mrepo::params::rhn_password: ''mytruepassword'' 
> mrepo::params::selinux     : false 
>
> # Repositories yumrepo 
> site::yum_repository::repos: 
>   "rhel6-x86_64": 
>     ensure     : present 
>     update     : ''now'' 
>     arch       : ''x86_64'' 
>     release    : ''6'' 
>     rhnrelease : ''6Server'' 
>     repotitle  : ''RHEL 6.3 64 Bits'' 
>     urls       : 
>       rhn-tools : ''rhns:///rhn-tools-rhel-$arch-server-6''

And I use the dashboard as an ENC to attach the  site::yum_repository class 
to the node puppet-node.

When I''m trying to run a *puppet agent --test* I got the following
output :

*err: Could not apply complete catalog: Found 1 dependency cycle:*
*(File[/srv/www/mrepo] => File[10-mrepo.conf] => Service[httpd] => 
Class[Apache] => File[/srv/www/mrepo])*
*Cycle graph written to /var/opt/lib/pe-puppet/state/graphs/cycles.dot.*

Any lead on what''s wrong in my manifests or on how to debug the
dependency
cycle ?

Thanks for your help,

Benoit BARTHELEMY

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Benoit BARTHELEMY

2013-Jan-24 10:08 UTC

head link

[Puppet Users] Re: Dependency Cycle with puppetlabs-mrepo

Correction, the class is the following :

class site::yum_repository{

  class{''mrepo::params'':
    src_root     => hiera(''mrepo::params::src_root''),
    www_root     => hiera(''mrepo::params::www_root''),
    user         => hiera(''mrepo::params::user''),
    group        => hiera(''mrepo::params::group''),
    source       => hiera(''mrepo::params::source''),
    selinux      => hiera(''mrepo::params::selinux''),
    rhn          => hiera(''mrepo::params::rhn''),
    rhn_username => hiera(''mrepo::params::rhn_username''),
    rhn_password => hiera(''mrepo::params::rhn_password''),
    mailto       => hiera(''mrepo::params::mailto'')
  }
  $repos = hiera(''site::yum_repository::repos'')
  create_resources(mrepo::repo::rhn, $repos)
}

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jcbollinger

2013-Jan-24 15:34 UTC

head link

[Puppet Users] Re: Dependency Cycle with puppetlabs-mrepo

On Thursday, January 24, 2013 4:08:21 AM UTC-6, Benoit BARTHELEMY
wrote:>
> Correction, the class is the following :
>
> class site::yum_repository{
>
>   class{''mrepo::params'':
>     src_root     => hiera(''mrepo::params::src_root''),
>     www_root     => hiera(''mrepo::params::www_root''),
>     user         => hiera(''mrepo::params::user''),
>     group        => hiera(''mrepo::params::group''),
>     source       => hiera(''mrepo::params::source''),
>     selinux      => hiera(''mrepo::params::selinux''),
>     rhn          => hiera(''mrepo::params::rhn''),
>     rhn_username =>
hiera(''mrepo::params::rhn_username''),
>     rhn_password =>
hiera(''mrepo::params::rhn_password''),
>     mailto       => hiera(''mrepo::params::mailto'')
>   }
>

Never, ever do that.  It''s awful.  You''ve gone to all the
trouble hierify
your class parameters, and then thrown away the biggest advantages of doing 
so.  If you''re going to rely on hiera for class parameters (a good
thing)
then declare that class via the ''include'' function:

include ''mrepo::params''

The advantages go far beyond brevity, but I''ll leave the rest for some 
other post.

 
>   $repos = hiera(''site::yum_repository::repos'')
>   create_resources(mrepo::repo::rhn, $repos)
> }
>
>The cycle is not (directly) in the manifests and data you presented.  It 
appears to be a problem in the mrepo module, whether in defined type 
mrepo::repo::rhn or some other component used by that definition.

I find this step of the dependency cycle particularly suspect: Service[httpd] 
=> Class[Apache].  Supposing that Class[apache] manages installing and 
configuring the apache server, one would normally expect to require it to 
be applied *before* Service[httpd], not after.

Supposing that Class[apache] provides for the parent directory of 
File[/srv/mrepo], and that it, in turn, is the parent directory of File[
10-mrepo.conf], the relationships should probably be like this instead 
(expressed via Puppet chaining operators):

Class[Apache] -> File[/srv/www/mrepo] -> File[10-mrepo.conf] ~> 
Service[httpd]
Class[Apache] ~> Service[httpd]

Except as discussed above, that''s consistent with the relationships
Puppet
reports, and it does not contain a cycle.  The second chain is not (wholly) 
redundant.


John

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Adrien Thebo

2013-Jan-24 21:48 UTC

head link

[Puppet Users] Re: Dependency Cycle with puppetlabs-mrepo

Hi Benoit,

I''m the author of the puppetlabs-mrepo module, what version of this
module
are you using?

On Thursday, January 24, 2013 12:16:05 AM UTC-8, Benoit BARTHELEMY
wrote:>
> Hi, I''m gettinng a dependency cycle when using PE 2.7,
puppetlabs::mrepo,
> "role classes" and hiera :
>
> I''m trying to mirror RHN repos :
>
> # ROLE CLASS
>
>> class site::yum_repository{ 
>>
>> $repos = hiera(''site::yum_repository::repos'') 
>> create_resources(mrepo::repo::rhn, $repos) 
>> } 
>>
>
> # HIERA DEFAULTS
>
>>      mrepo::params::src_root    : ''/srv/mrepo'' 
>>   mrepo::params::www_root    : ''/srv/www/mrepo'' 
>>   mrepo::params::user        : ''apache'' 
>>   mrepo::params::group       : ''apache'' 
>>   mrepo::params::mailto      : ''UNSET'' 
>>   mrepo::params::source      : ''package'' 
>>   mrepo::params::selinux     : false 
>>   mrepo::params::rhn         : true 
>>   mrepo::params::rhn_username: ''user'' 
>>   mrepo::params::rhn_password: ''pass'' 
>>
>
>
> # NODE-SPECIFIC HIERA VALUES
>
>> mrepo::params::src_root    : ''/srv/mrepo'' 
>> mrepo::params::www_root    : ''/srv/www/mrepo'' 
>> mrepo::params::user        : ''apache'' 
>> mrepo::params::group       : ''apache'' 
>> mrepo::params::source      : ''package'' 
>> mrepo::params::rhn         : true 
>> mrepo::params::rhn_username: ''mytrueaccount'' 
>> mrepo::params::rhn_password: ''mytruepassword'' 
>> mrepo::params::selinux     : false 
>>
>> # Repositories yumrepo 
>> site::yum_repository::repos: 
>>   "rhel6-x86_64": 
>>     ensure     : present 
>>     update     : ''now'' 
>>     arch       : ''x86_64'' 
>>     release    : ''6'' 
>>     rhnrelease : ''6Server'' 
>>     repotitle  : ''RHEL 6.3 64 Bits'' 
>>     urls       : 
>>       rhn-tools :
''rhns:///rhn-tools-rhel-$arch-server-6''
>
>
> And I use the dashboard as an ENC to attach the  site::yum_repository 
> class to the node puppet-node.
>
> When I''m trying to run a *puppet agent --test* I got the following
output
> :
>
> *err: Could not apply complete catalog: Found 1 dependency cycle:*
> *(File[/srv/www/mrepo] => File[10-mrepo.conf] => Service[httpd] =>
> Class[Apache] => File[/srv/www/mrepo])*
> *Cycle graph written to /var/opt/lib/pe-puppet/state/graphs/cycles.dot.*
>
> Any lead on what''s wrong in my manifests or on how to debug the
dependency
> cycle ?
>
> Thanks for your help,
>
> Benoit BARTHELEMY
>
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Benoit BARTHELEMY

2013-Jan-25 08:31 UTC

head link

[Puppet Users] Re: Dependency Cycle with puppetlabs-mrepo

Hi Adrien,

I''m using the version of the puppet forge (1.1.0), I''ve had
most
difficulties to make it work on RHEL 6 to mirror RHN repos... 

   - There is a test in manifest/rhn.pp that evaluates if the server is 
   Centos to create missing ressources, in fact those values are absent from 
   RHEL6 as well.
   - The server is behind a proxy, it''s not supported in the current
forge
   module (had to hack the Exec ressource in manifest/repo/rhn to add 
   environment variable http_proxy).
   - If the /var/log/up2date file is not writable (it''s not managed by
,
   the module tries to write it''s log in /root/up2date.
   - I think I''ve managed to find where the cycle is : 
   manifest/webservice.pp => the docroot require Apache, the apache::vhost 
   require the docroot and trigger an Apache refresh... All on the same stage 
   : Class[''apache''] -> File[''$docroot'']
-> Apache::Vhost[''mrepo''] ~>
   Service[''Apache''] = cycle (as
Class[''apache''] -> Service[''Apache''].
I''ve
   removed the dependency Class[''apache''] ->
File[''$docroot''].
   - Finally I''ve added this to site::yum_repository :
Class[''apache''] ->
   Class[''mrepo::params''] -> Mrepo::Repo::Rhn<||>


I''ve not found any new version on github so I may have used the module 
incorrectly...

Regards,

Benoit BARTHELEMY
(

Le jeudi 24 janvier 2013 22:48:26 UTC+1, Adrien Thebo a écrit
:>
> Hi Benoit,
>
> I''m the author of the puppetlabs-mrepo module, what version of
this module
> are you using?
>
> On Thursday, January 24, 2013 12:16:05 AM UTC-8, Benoit BARTHELEMY wrote:
>>
>> Hi, I''m gettinng a dependency cycle when using PE 2.7,
puppetlabs::mrepo,
>> "role classes" and hiera :
>>
>> I''m trying to mirror RHN repos :
>>
>> # ROLE CLASS
>>
>>> class site::yum_repository{ 
>>>
>>> $repos = hiera(''site::yum_repository::repos'') 
>>> create_resources(mrepo::repo::rhn, $repos) 
>>> } 
>>>
>>
>> # HIERA DEFAULTS
>>
>>>      mrepo::params::src_root    : ''/srv/mrepo'' 
>>>   mrepo::params::www_root    : ''/srv/www/mrepo'' 
>>>   mrepo::params::user        : ''apache'' 
>>>   mrepo::params::group       : ''apache'' 
>>>   mrepo::params::mailto      : ''UNSET'' 
>>>   mrepo::params::source      : ''package'' 
>>>   mrepo::params::selinux     : false 
>>>   mrepo::params::rhn         : true 
>>>   mrepo::params::rhn_username: ''user'' 
>>>   mrepo::params::rhn_password: ''pass'' 
>>>
>>
>>
>> # NODE-SPECIFIC HIERA VALUES
>>
>>> mrepo::params::src_root    : ''/srv/mrepo'' 
>>> mrepo::params::www_root    : ''/srv/www/mrepo'' 
>>> mrepo::params::user        : ''apache'' 
>>> mrepo::params::group       : ''apache'' 
>>> mrepo::params::source      : ''package'' 
>>> mrepo::params::rhn         : true 
>>> mrepo::params::rhn_username: ''mytrueaccount'' 
>>> mrepo::params::rhn_password: ''mytruepassword'' 
>>> mrepo::params::selinux     : false 
>>>
>>> # Repositories yumrepo 
>>> site::yum_repository::repos: 
>>>   "rhel6-x86_64": 
>>>     ensure     : present 
>>>     update     : ''now'' 
>>>     arch       : ''x86_64'' 
>>>     release    : ''6'' 
>>>     rhnrelease : ''6Server'' 
>>>     repotitle  : ''RHEL 6.3 64 Bits'' 
>>>     urls       : 
>>>       rhn-tools :
''rhns:///rhn-tools-rhel-$arch-server-6''
>>
>>
>> And I use the dashboard as an ENC to attach the  site::yum_repository 
>> class to the node puppet-node.
>>
>> When I''m trying to run a *puppet agent --test* I got 
>> the following output :
>>
>> *err: Could not apply complete catalog: Found 1 dependency cycle:*
>> *(File[/srv/www/mrepo] => File[10-mrepo.conf] => Service[httpd]
=>
>> Class[Apache] => File[/srv/www/mrepo])*
>> *Cycle graph written to
/var/opt/lib/pe-puppet/state/graphs/cycles.dot.*
>>
>> Any lead on what''s wrong in my manifests or on how to debug
the
>> dependency cycle ?
>>
>> Thanks for your help,
>>
>> Benoit BARTHELEMY
>>
>
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