Requiring a subclass?

[Guy Matz]

Hello!  Is there a way to set the dependency for a resource that is a subclass?  I have an accounts module, and "within" that is accounts::account which contains declarations to create user, group, etc. . . .  I would like to do something like:

file {'sdfdsf':

 contents => 'sdkfjdsf',

 owner    => 'username',

 requires Accounts::account['username']  

}

But that doesn't work.  (Error 400 on SERVER: Syntax error at '::account'; expected ']')

I also thought I should be able to say:

file {'sdfdsf':

 contents => 'sdkfjdsf',

 owner    => 'username',

 requires User['username'] 

}

since it's really the user resource that's at the heart of the matter, but that didn't work either!  Puppet still complains that it "Could not find dependency User[username]"

Any thoughts would be appreciated.

Thanks,

Guy

[Thomas Müller]

Am Freitag, 6. Februar 2015 22:45:30 UTC+1 schrieb guymatz:

Hello!  Is there a way to set the dependency for a resource that is a subclass?  I have an accounts module, and "within" that is accounts::account which contains declarations to create user, group, etc. . . .  I would like to do something like:

file {'sdfdsf':

 contents => 'sdkfjdsf',

 owner    => 'username',

 requires Accounts::account['username']  

}

to depend on a class: 

require => Class['Accounts::Account'],

(and require without s)

to depend on a specific resource in a class is always depending on the resource:

require => User['xyz'],

or group:

require => Group['xyz']

- Thomas

https://docs.puppetlabs.com/puppet/latest/reference/lang_relationships.html

[jcbollinger]

On Friday, February 6, 2015 at 3:45:30 PM UTC-6, guymatz wrote:

Hello!  Is there a way to set the dependency for a resource that is a subclass?  I have an accounts module, and "within" that is accounts::account which contains declarations to create user, group, etc. . . .  I would like to do something like:

file {'sdfdsf':

 contents => 'sdkfjdsf',

 owner    => 'username',

 requires Accounts::account['username']  

}

But that doesn't work.  (Error 400 on SERVER: Syntax error at '::account'; expected ']')

It doesn't make sense.

1. If accounts::account is a (sub)class then its name is "accounts::account", and no 'username' has anything to do with it.  In that case, a reference to it would be spelled Class['accounts::account'], as Thomas said.
   
2. Whether it is a subclass (of another class) or not has nothing to do with it, but anyway, nothing in what you presented is related to whether or not it actually is a subclass.
3. Except, if the 'username' part is in fact relevant in any way, it can only be because accounts::account is a defined type, not a class at all (sub- or otherwise).  If it is a defined type, then a reference to an instance of it would be spelled "Accounts::Account['username']" (every name segment capitalized).
   

 

I also thought I should be able to say:

file {'sdfdsf':

 contents => 'sdkfjdsf',

 owner    => 'username',

 requires User['username'] 

}

since it's really the user resource that's at the heart of the matter, but that didn't work either!  Puppet still complains that it "Could not find dependency User[username]"

If Puppet even gets to the point of determining whether it can find the dependency, then what you in fact tried was different from what you wrote above, as the declaration above misspells the 'require' metaparameter and omits the association arrow (=>) between that parameter name and its value.  We can help you better when you post the code that you are actually using, so cut&paste is your friend.

Anyway, if you use a syntactically correct variation on the above, and Puppet complains that it could not find the dependency, then the problem is that you did not declare the dependency.  The 'require' metaparameter does not (indeed cannot) do that for you.  Puppet doesn't need to have already processed the declaration of User['username'] (or Account::Accounts['username']) when it processes the File declaration, but it needs to see such a declaration somewhere among the resources declared for the target node before it finishes building the catalog.


John

[Guy Matz]

Sorry!  Yes, accounts::account is a defined type!  :-(  Sorry . . .  

Working now!!  Thanks!!

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